Humidity Meter
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 3in1 pH Meter Humidity Tester Thermometer Hygrometer °C  US $48.30
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 LCD Digital Temperature Humidity Meter Hygrometer Clock US $.20
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 FISHER SCIENTIFIC DIGITAL HUMIDITY TEMPERATURE METER US $39.99
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Dust mites and the protein produced by their feces are the most common allergen contaminants found in the indoor environment and is the number one cause of asthma in the home. In fact, persons which exhibit serious symptoms to house dust are confirmed by testing to have a strong allergy to the protein found in dust mite feces.
What are dust mites?
Dust mites are microscopic bugs which live in most homes and are 1/100th of an inch in length and have translucent bodies, so they are not visible to the unaided eye. To identify one of these microscopic mites, one would need a 10X magnification device. The American College of Allergy, Asthma & Immunology identifies them as an insect which belongs to the family of eight-legged creatures called arachnids that also includes spiders, chiggers and ticks. They will thrive in temperatures above 70 degrees F, especially with humidity levels above 65 percent and usually die off when the humidity falls below 40 percent. They are more prevalent in areas which have moderate to extreme humid climates. A female mite will lay many eggs which are coated with a sticky substance that clings to most materials. An immature egg will reach adulthood in just four weeks time.
Dust Mites Have Huge Appetites
They may feed on dead human skin cells which are in the air and on furniture surfaces. Since humans may shed as much as 1/5 ounce of dead skin each week, dust mites never run out of a food source. They will also consume animal dander and may be plentiful in the bedding of family pets. Since we spend about one-third of our lives in the bedroom, higher levels of mites are usually found on the surfaces of a mattress and bedding materials. A typical mattress may have millions of mites living inside and on the top surfaces. They can also be found in large numbers in carpeting and furniture where humans spend the most time.
Dust Mite Symptoms
A person who shows an allergy towards dust mites will produce an antibody in response to the proteins from their feces. An allergic individual will produce white blood cells that release histamine thus triggering allergic symptoms. Histamine may produce allergic symptoms at various places in a persons body. Allergies caused by these microscopic creatures can range from mild allergic rhinitis to severe asthma attacks. Extreme exposure cases have reported a red rash around the neck, arms or legs.
Controlling Dust Mites
Regular cleaning of the places they can be found can make a real difference in the number of dust mites in your home. The only effective method of controlling them is to focus on microscopic dust control. A high efficient particulate air (HEPA) vacuum is the primary weapon for effective cleaning of all areas which they can be found. Here are some other great ways to control dust mites in your house:
- In the bedroom, encase your pillow and mattress with allergy proof covers.
- Wash all bed linens in hot water (130 degrees F) weekly.
- Use fitted sheets to help keep dust off the mattress covers.
- Replace feather and down pillows with synthetic filled alternatives.
- Keep stuffed toys off beds and discard stuffed toys for children with asthma conditions.
- Make sure that your hair is dry before going to bed since the moisture may attract dust mites.
- Keep blankets enclosed in allergy free bags or covers when not in use.
- Thoroughly vacuum all upholstered furniture and carpeting weekly with a HEPA cleaning device.
- Limit the use of a humidifier unless needed for other health reasons.
- Maintain a dry environment in your bedroom especially if it is directly connected to a bathroom.
- Wash all curtains and window coverings on a monthly basis.
- Purchase a quality Relative Humidity (RH) meter and attempt to keep RH levels below 50 percent. Central air conditioning is effective at lowering RH in the warmer months.
- Use a pleated high efficient filter in your heating, ventilation and air conditioning (HVAC) system to control dust. Avoid all filters which are sold as "washable".
- Utilize a HEPA air purifier in bedrooms and heavily used rooms.
- A common recommendation is to treat dust mite areas with a powder chemical compound. I strongly warn against using any powder chemical of any type for any reason since the chemical itself can be inhaled causing other acute or chronic respiratory problems.
Read more asthma prevention tips
Read more Asthma Prevention Tips here.
Read more about the author
Stan K. Hall is a recognized specialist in Indoor Air Pollution as well as Health & Safety in the home. He has performed over 400 indoor environmental evaluations over the past 26 years and has helped hundreds of homeowners make their home a haven. He is widely known as the originator of T.E.A.M.; the scientifically proven approach to controlling and resolving indoor air pollution.
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LCD Digital Clock Thermometer and Humidity Meter $9.52 LCD Digital Clock Thermometer and Humidity Meter |
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Garden Soil Moisture Humidity and pH Acidity Meter $5.69 Garden Soil Moisture Humidity and pH Acidity Meter |
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Garden Soil Moisture Humidity and pH Acidity Meter $4.75 Garden Soil Moisture Humidity and pH Acidity Meter |
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Garden Soil Moisture Humidity and pH Acidity Meter $7.4 Garden Soil Moisture Humidity and pH Acidity Meter |
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DT-83 Mini Temperature and Humidity Meter $53.5 Maximum/Minimum valueLarge measuring rangePocket sizeEasy to useLCD DisplayNew design housingHigh performance and auto LCD backlightAuto power offSpecifications:Temperature:Range: negative 2o to positive 60 degrees Celsius, negative 4 to 140 degrees FahrenheitResolution: 0.1 degrees Celsius/FahrenheitBasic accuracy: Positive/Negative 1 degrees Celsius (0 to 40 degrees Celsius), Positive/Negative 2 degrees Celsius (negative n20 to 0 and 40 to 60 degrees Celsius)Humidity:Range: 0 to 100 percent RHResolution: 0.1 percent RHBasic accuracy: Positive/Negative 3.5 percent RH (20 to 80 percent), Positive/Negative 5 percent RH (0 to 20 and 80 to 100 percent)Weight:220gDimension: 147*54*35 mm |
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DT-83 Mini Temperature and Humidity Meter $44.68 Maximum/Minimum valueLarge measuring rangePocket sizeEasy to useLCD DisplayNew design housingHigh performance and auto LCD backlightAuto power offSpecifications:Temperature:Range: negative 2o to positive 60 degrees Celsius, negative 4 to 140 degrees FahrenheitResolution: 0.1 degrees Celsius/FahrenheitBasic accuracy: Positive/Negative 1 degrees Celsius (0 to 40 degrees Celsius), Positive/Negative 2 degrees Celsius (negative n20 to 0 and 40 to 60 degrees Celsius)Humidity:Range: 0 to 100 percent RHResolution: 0.1 percent RHBasic accuracy: Positive/Negative 3.5 percent RH (20 to 80 percent), Positive/Negative 5 percent RH (0 to 20 and 80 to 100 percent)Weight:220gDimension: 147*54*35 mm |
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DT-83 Mini Temperature and Humidity Meter $69.6 Maximum/Minimum valueLarge measuring rangePocket sizeEasy to useLCD DisplayNew design housingHigh performance and auto LCD backlightAuto power offSpecifications:Temperature:Range: negative 2o to positive 60 degrees Celsius, negative 4 to 140 degrees FahrenheitResolution: 0.1 degrees Celsius/FahrenheitBasic accuracy: Positive/Negative 1 degrees Celsius (0 to 40 degrees Celsius), Positive/Negative 2 degrees Celsius (negative n20 to 0 and 40 to 60 degrees Celsius)Humidity:Range: 0 to 100 percent RHResolution: 0.1 percent RHBasic accuracy: Positive/Negative 3.5 percent RH (20 to 80 percent), Positive/Negative 5 percent RH (0 to 20 and 80 to 100 percent)Weight:220gDimension: 147*54*35 mm |
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LCD Digital Clock Thermometer and Humidity Meter $9.52 - Display temperature, humidity and time simultaneously- 12-hour/24-hour displaying system selectable- Integral- hour alarm function- Alarm function- Clock and calendar function (month and date)- Desktop placing or wall hanging- Temperature range: -50~+70C - Humidity range: 10% ~ 99%RH |
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LCD Digital Clock Thermometer and Humidity Meter $9.66 Overview: Display temperature, humidity and time simultaneously 12-hour/24-hour displaying system selectable Integral- hour alarm function Alarm function Clock and calendar function (month and date) Desktop placing or wall hangingSpecifications:Temperature range: -50~ 70C Humidity range: 10% ~ 99%RHResolution: temperature: 0.1C humidity:1% RHDimensions: 4.25 in x 3.94 in x 0.87 inWeight: 5.82 oz |
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LCD Digital Clock Thermometer and Humidity Meter $7.94 - Display temperature, humidity and time simultaneously- 12-hour/24-hour displaying system selectable- Integral- hour alarm function- Alarm function- Clock and calendar function (month and date)- Desktop placing or wall hanging |
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Meter $6 Meter |
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Meter $6 Meter |
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Humidity $12.08 Matt Wilson is the sort of jazz musician who insists on keeping his options open. The flexible drummer/percussionist is comfortable in straightahead situations, but he is also well acquainted with the pleasures of the avant-garde--and Humidity falls into |
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Humidity $11.99 Track Listing: 1. Thank You Billy Higgins!, 2. Swimming in the Trees, 3. Cooperation, 4. Free Willy, 5. Wall Shadows, 6. Raga, 7. Code Yellow, 8. Humidity, 9. Don't Blame Me, 10. Out Delight, 11. All My Children, 12. Beginning of a Memory |
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Humidity $10.38 Matt Wilson is the sort of jazz musician who insists on keeping his options open. The flexible drummer/percussionist is comfortable in straightahead situations, but he is also well acquainted with the pleasures of the avant-garde--and Humidity falls into that category. This 2002 date finds Wilson favoring an inside/outside approach, and he does so while leading a pianoless quartet that includes two reedmen (Andrew D'Angelo and Jeff Lederer) and bassist Yousuke Inoue (who is heard on both the acoustic and electric models). Three other musicians are listed as "very special guests"--violinist Felicia Wilson, trumpeter John Carlson and trombonist Curtis Hasselbring--but the members of the quartet are the main players. Humidity gets off to a very Ornette Coleman-influenced start with the opener "Thank You, Billy Higgins," which recalls the late Higgins' work with Coleman's trailblazing quartet of the early ‘60s. And the Coleman influence is equally strong on "Swimming in the Trees". But Humidity is far from a Coleman tribute album; after acknowledging the saxman's work on the first few selections, Wilson moves on to other things--and they range from a Middle Eastern-influenced jam titled "Raga" to the AACM-like "Cooperation" (which uses space in a way that would be appropriate for an Anthony Braxton or Roscoe Mitchell disc). Although Wilson's own material dominates the CD, he does interpret two well known standards: "Don't Blame Me" and Tadd Dameron's "Our Delight". But instead of playing them the same old bebop/hard bop way, Wilson comes up with interpretations that are angular and quirky. Myopic bop snobs will accuse Wilson of heresy and insist that he is defiling sacred ground, but thankfully, Wilson knows better than to be swayed by dogmatists--and that attitude serves him well on this fairly unpredictable avant-garde effort. ~ Alex Henderson, Rovi Performers: John Carlson - Trumpet (Pocket), Pocket Trumpet, Trumpet; Matt Wilson - Handbells, Chimes, Percussion, Drums; Andrew D'Angelo - Handbells, Clarinet (Bass), Sax (Alto); Yosuke Inoue - Handbells, Bass (Acoustic), Bass (Electric), Double Bass, Guitar (Bass); Curtis Hasselbring - Trombone; Felicia Wilson - Violin; Jeff Lederer - Handbells, Sax (Soprano), Clarinet, Sax (Tenor) |
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Righteousness And Humidity $7.99 Righteousness And Humidity |
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Kestrel 830 3000 Pocket Weather Meter - Red $149 NK was the first to provide accurate relative humidity measurements from a hand-held weather meter, and the Kestrel 3000 features two patents on its humidity measuring sensors. A testament to the 3000’s accuracy: it’s become practically required equipment |
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GrowMeter Indoor Growing Meter $48.99 The unique, easy-to-read dial has a thermometer that displays temperature in both Fahrenheit and Celsius on the left scale, and a hygrometer that shows the percentage of relative humidity on the right.Research shows that houseplants flourish when kept within specific temperature and humidity ranges.The GroMeter monitors both temperature and humidity in your home - taking guesswork out of effective plant caretaking.Within these two scales are green zones, which indicate the optimal temperature and humidity ranges for healthy plant growth.Materials: Plastic, metalModel: GROM1Dimensions: 4.25 inches long x 4 inches wide x 6 inches wide |
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GrowMeter Indoor Growing Meter $122.12 The unique, easy-to-read dial has a thermometer that displays temperature in both Fahrenheit and Celsius on the left scale, and a hygrometer that shows the percentage of relative humidity on the right.Research shows that houseplants flourish when kept within specific temperature and humidity ranges.The GroMeter monitors both temperature and humidity in your home - taking guesswork out of effective plant caretaking.Within these two scales are green zones, which indicate the optimal temperature and humidity ranges for healthy plant growth.Materials: Plastic, metalModel: GROM1Dimensions: 4.25 inches long x 4 inches wide x 6 inches wide |
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GrowMeter Indoor Growing Meter $82.04 The unique, easy-to-read dial has a thermometer that displays temperature in both Fahrenheit and Celsius on the left scale, and a hygrometer that shows the percentage of relative humidity on the right.Research shows that houseplants flourish when kept within specific temperature and humidity ranges.The GroMeter monitors both temperature and humidity in your home - taking guesswork out of effective plant caretaking.Within these two scales are green zones, which indicate the optimal temperature and humidity ranges for healthy plant growth.Materials: Plastic, metalModel: GROM1Dimensions: 4.25 inches long x 4 inches wide x 6 inches wide |
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Pen Type PHC Meter $12.15 Range:0.0-14.0 pHResolution: 0.1 pHAccuracy: +-0.1pH (at 20C/68F)Typical EMC DEV: +-0.2pHBatteries: 3x1.5V (AG 12 Button Battery)Life: Approximately 700 hours of useEnvironment: 0C-50C (32F-122F)Relative humidity: <95%Dimension: 150mmx29mmx20mmTrimming: By potentiometerWeight:51 gramsSize: 150*30*20mm |
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Pen Type PHC Meter $10.14 Range:0.0-14.0 pHResolution: 0.1 pHAccuracy: +-0.1pH (at 20C/68F)Typical EMC DEV: +-0.2pHBatteries: 3x1.5V (AG 12 Button Battery)Life: Approximately 700 hours of useEnvironment: 0C-50C (32F-122F)Relative humidity: <95%Dimension: 150mmx29mmx20mmTrimming: By potentiometerWeight:51 gramsSize: 150*30*20mm |
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Pen Type PHC Meter $15.8 Range:0.0-14.0 pHResolution: 0.1 pHAccuracy: +-0.1pH (at 20C/68F)Typical EMC DEV: +-0.2pHBatteries: 3x1.5V (AG 12 Button Battery)Life: Approximately 700 hours of useEnvironment: 0C-50C (32F-122F)Relative humidity: <95%Dimension: 150mmx29mmx20mmTrimming: By potentiometerWeight:51 gramsSize: 150*30*20mm |
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2.6 inch Digital LCD Aquarium Thermometer and Humidity Meter (-9.9'C~99'C / 14'F~244'F) $4.89 - Large LCD display showing Aquarium temperature- With adhesive tape at backside for easy placing on aquarium tank- 'C/'F selection- Temperature range: -9.9'C~99'C / -14'F~244'F- Powered by 1*1.5V(LR44) battery |
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Temperature & humidity sensor $261.99 APC - Temperature & humidity sensor |
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Temperature & humidity sensor $68.99 Lantronix - Temperature & humidity sensor |
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Humicase Humidity Control Pack $54.99 Humicase Humidity Control Pack |
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Digital Lux Meter with Stand (200000lux) $31 - Digital lux meter: measures the amount of light going into the sensor- Precise and easy readout- Spectral Sensitivity close to CIE photo pic Curve- Cosine Angular corrected- Tripod fixable- Data Hold function- High accuracy in measuring- Low battery indicator- Key Specifications:?- Display: 3 1/2 digit LCD?- Measuring Range: 200/2000/20000/200000 Lux 20000 lux-reading x 10; 200000 lux-reading x 100?- Overrange Display: Highest digit of (1) is displayed?- Resolution: 0.1 Lux?- Accuracy: ¡À 3% rdg ¡À 0.5% f.s.(10,000 lux) (calibrated to standard incandescent lamp, 2856 K)?- Repeatability: ¡À2%?- Temperature Characteristics: ¡À0.1%?- Measuring Rate: Approx. 2 times/sec.?- Operating Temperature & Humidity 0'C to 40'C < 80% R.H.?- Power source: 1 x 9V battery (sold separately)?- Accessories: Carrying case |
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VU Meter $10 VU Meter |
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VU Meter $6 VU Meter |
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Digital Lux Meter with Stand (200000lux) $20.45 - Digital lux meter: measures the amount of light going into the sensor- Precise and easy readout- Spectral Sensitivity close to CIE photo pic Curve- Cosine Angular corrected- Tripod fixable- Data Hold function- High accuracy in measuring- Low battery indicator.- Key Specifications:* Display: 3 1/2 digit LCD* Measuring Range: 200/2000/20000/200000 Lux 20000 lux-reading x 10; 200000 lux-reading x 100* Overrange Display: Highest digit of (1) is displayedResolution: 0.1 Lux* Accuracy: 3% rdg 0.5% f.s.(10,000 lux) (calibrated to standard incandescent lamp, 2856 K)* Repeatability: 2%* Temperature Characteristics: 0.1%* Measuring Rate: Approx. 2 times/sec.* Operating Temperature And Humidity 0'C to 40'C < 80% R.H.* Power source: 1 x 9V battery (sold separately)* Dimension: 135mm(L) x 75mm(W) x 33mm(H)* Net Weight 250g* Accessories: Carrying case |
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Digital Lux Meter with Stand (200000lux) $17.08 - Digital lux meter: measures the amount of light going into the sensor- Precise and easy readout- Spectral Sensitivity close to CIE photo pic Curve- Cosine Angular corrected- Tripod fixable- Data Hold function- High accuracy in measuring- Low battery indicator.- Key Specifications:* Display: 3 1/2 digit LCD* Measuring Range: 200/2000/20000/200000 Lux 20000 lux-reading x 10; 200000 lux-reading x 100* Overrange Display: Highest digit of (1) is displayedResolution: 0.1 Lux* Accuracy: 3% rdg 0.5% f.s.(10,000 lux) (calibrated to standard incandescent lamp, 2856 K)* Repeatability: 2%* Temperature Characteristics: 0.1%* Measuring Rate: Approx. 2 times/sec.* Operating Temperature And Humidity 0'C to 40'C < 80% R.H.* Power source: 1 x 9V battery (sold separately)* Dimension: 135mm(L) x 75mm(W) x 33mm(H)* Net Weight 250g* Accessories: Carrying case |
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Digital Lux Meter with Stand (200000lux) $26.6 - Digital lux meter: measures the amount of light going into the sensor- Precise and easy readout- Spectral Sensitivity close to CIE photo pic Curve- Cosine Angular corrected- Tripod fixable- Data Hold function- High accuracy in measuring- Low battery indicator.- Key Specifications:* Display: 3 1/2 digit LCD* Measuring Range: 200/2000/20000/200000 Lux 20000 lux-reading x 10; 200000 lux-reading x 100* Overrange Display: Highest digit of (1) is displayedResolution: 0.1 Lux* Accuracy: 3% rdg 0.5% f.s.(10,000 lux) (calibrated to standard incandescent lamp, 2856 K)* Repeatability: 2%* Temperature Characteristics: 0.1%* Measuring Rate: Approx. 2 times/sec.* Operating Temperature And Humidity 0'C to 40'C < 80% R.H.* Power source: 1 x 9V battery (sold separately)* Dimension: 135mm(L) x 75mm(W) x 33mm(H)* Net Weight 250g* Accessories: Carrying case |
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Medline EvenCare Glucose Monitoring System - Meter and Case $57.99 The EvenCare® test strip has a special capillary action that allows you to simply touch the edge of the strip and it will draw the blood into the strip. The blood sample is placed and measured outside the meter reducing the risk of cross-contamination, and eliminating the need for internal cleaning. Biosensor technology provides fast, accurate results. Requires a mere 3.0 µL of blood. Automatically activated when test strip is inserted. Displays a result in only 30 seconds. Large, easy-to-read display. Easy code chip calibration. Meter retains last 10 results in memory.Operating Specifications: 30-550 mg/dL result range. 30-55% hematocrit range. Operates between 64-100°F and <85% relative humidity. Displays message of LO or HI when outside operating range. Replaceable 1-3V lithium coin cell battery power. |
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temperature & humidity sensor $119.99 APC - Temperature & humidity sensor - black |
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temperature & humidity sensor $126.99 APC - Temperature & humidity sensor - black |
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temperature & humidity sensor $228.99 APC - Temperature & humidity sensor - black |
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Meter $20.39 Australian singer/songwriter PERRY KEYES (formerly of Sydney band STOLEN HOLDENS) is hardly typical rockstar material. He lives in the working-class Sydney suburb of Redfern, drives cabs by day and plays with his band at night. But live shows in NSW and endorsements by other Australian musicians have built a following for 39-year old Keyes ahead of the release of his two-CD, 18 song debut, 'Meter', produced by GRANT SHANAHAN (EVA TROUT) and MICHAEL CARPENTER. Keyes weaves detailed scenarios and characters into his songs, earning him the title "The Bruce Springsteen of Redfern" from his admirerers. Rocket.2006 |
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SVP dr. Tech WH1170 Wireless Advanced Weather Station with Temperature, Dew Point, Barometer and Humidity $35.49 With this wireless device you can always be aware of what the outside temperature and humidity, without having to actually go outside to find out. This weather station also functions as a handy digital clock. Attach the wireless sensor, or just leave it somewhere outside and the sensor will measure the current conditions and wirelessly transmits the data to the monitor.Wireless outdoor and indoor: Humidity (%RH)Wireless outdoor and indoor: Temperature (°F or °C)Records min. and max. humidityRecords min. and max. temperatureBarometric pressure 24-hour history graph (inHg or hPa)Barometric pressure tendency arrowForecast icons based on changing barometric pressureReceive and displays the radio controlled time and date (WWVB, DCF)Automatically updates for daylight saving time (on / off option)12 or 24-hour time displayPerpetual calendarTime alarm with snoozeCan receive one sensorHigh light LED backlightWall hanging or free standingIncluded transmitter WH2Synchronized instant receptionLow power consumption (over 2 year battery life for remote sensor)Wireless outdoor humidity range: 20% to 99% (+/-5% under0 to 45°C)Indoor humidity range: 1% to 99% (1% resolution) Wireless outdoor temperature range: -40.0°C to 65°C (-40°F to +149°F)Indoor temperature range: 0°C to 50 °C(32°F to +122°F)Temperature accuracy: +/- 1.0°CTransmission range: 100 meter (330 feet) |
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SVP dr. Tech WH1170 Wireless Advanced Weather Station with Temperature, Dew Point, Barometer and Humidity $89.71 With this wireless device you can always be aware of what the outside temperature and humidity, without having to actually go outside to find out. This weather station also functions as a handy digital clock. Attach the wireless sensor, or just leave it somewhere outside and the sensor will measure the current conditions and wirelessly transmits the data to the monitor.Wireless outdoor and indoor: Humidity (%RH)Wireless outdoor and indoor: Temperature (°F or °C)Records min. and max. humidityRecords min. and max. temperatureBarometric pressure 24-hour history graph (inHg or hPa)Barometric pressure tendency arrowForecast icons based on changing barometric pressureReceive and displays the radio controlled time and date (WWVB, DCF)Automatically updates for daylight saving time (on / off option)12 or 24-hour time displayPerpetual calendarTime alarm with snoozeCan receive one sensorHigh light LED backlightWall hanging or free standingIncluded transmitter WH2Synchronized instant receptionLow power consumption (over 2 year battery life for remote sensor)Wireless outdoor humidity range: 20% to 99% (+/-5% under0 to 45°C)Indoor humidity range: 1% to 99% (1% resolution) Wireless outdoor temperature range: -40.0°C to 65°C (-40°F to +149°F)Indoor temperature range: 0°C to 50 °C(32°F to +122°F)Temperature accuracy: +/- 1.0°CTransmission range: 100 meter (330 feet) |
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