Hygrometer Humidity
December 14th, 2010 | 
Author: Hygrometer Humidity
Hygrometer Humidity deals on Amazon:
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Hygrometer Humidity Thermometer Temperature Temp Gauge $2.20 Measuring range of temperature: -10ºC – 50ºC (14º F – 122º F) Measuring range of humidity: 20%-95% R.H. Temperature accuracy: +/-1ºC within 0ºC-35ºC (32º F-95º F); +/-2ºC at the remaining range Humidity accuracy: 5% R.H. within 40%-80% R.H., and 0ºC-35ºC(32º F-95º F); 8% at the remaining range Resolution: 0.1ºC, 1% RH Dimension: 57(L) x 32(W) x11.5(T) mm Battery: AG13 or LR44 … |
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Control Company 4096 Humidity/Temperature Meter with Dual Min/Max Memories,NIST Certificate Included $57.98 Routine measurements, monitoring round-the-clock, quality-control needs, and critical experimental requirements are features of this humidity/ temperature meter…. |
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Dial Hygrometer / Thermometer $34.75 The dial hygrometer / thermometer is ideal for classroom, lab or industrial use. Large, clear, 20 ~ 100% RH scale on 4″ dial. Easily read from a distance. Use a precise synthetic hair hygrometer with an accuracy of ±5%. Plastic face meets food industry requirements. Inner dial shows temperature using a bimetal thermometer, with an accuracy of ±2°F. Wall mounts. Weight 3.7 oz…. |
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Extech 445703 Big Digit Hygro-Thermometer with Min/Max $41.99 Measures surrounding temperatures and relative humidity electronically and displays in a large LCD. The perfect digital humidistat for any humidifier or dehumidifier. Temperature range: 14 – 140 oF, Humidity range: 10 – 85 %RH… |
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Dayton 1UHG3 Humidifier Control, Plug In, 120 V $58.85 Humidifier Control, Plug In Outlet With Piggy Back, Adjustable Range 30 to 90% RH, Differential +/- 1 RH %, Voltage 120, Contact Rating 15A Resistive 3A Inductive, Switch Action Close on Humidity Decrease, Switch Type SPST, Height 5 1/2 In, Width 2 3/4 In, Depth 1 3/4 In… |
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Taylor 497 Outdoor Thermometer and Hygrometer $14.86 Brushed silver metal bezel and silkscreened graphics. Weather resistant construction and clock movement cover for outdoor protection. 12” diameter. Requires 1 ”AA” battery (not included)…. |
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TEMPer USB Thermometer w/ Alerts $24.99 Monitor the temperature with a USB thermometer. The included software takes temperature readings, records them, and graphs them. Set temperature for Fahrenheit or Celsius, and adjust the intervals at which temperature is read. It can even email you alerts when the temp goes over a limit you specify!… |
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Taylor 1526 Weather Guide, Wireless Remote, Thermometer, Hygrometer & Atomic clock $35.05 Reports indoor/outdoor temperature and humidityDisplays weather forecast iconsBacklight100′ transmission rangeThe Taylor 1526 Weather Guide with Wireless Remote Indoor/outdoor Thermometer Hygrometer & Atomic clock features weather forecast icons that indicate possible conditions for the next 12 hours (i.e. sunny, becoming cloudy, cloudy, rain, or snow). The remote sensor transmits temperature read… |
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ECOMGEAR (TM) Accurate Indication Comfortable Meter Hygrometer Thermometer $3.99 Features Overview: applications It is widely used for the measurement of the temperature and humidity in houses,offices,workshops schools,markets,warehouses,etc Accurate indication of temperature, humidity and other environmental parameters, improve your work efficiency and quality of life, to draw your attention to the dress, protect your health and wealth Technical Specification Temperature meas… |
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HK Digital LCD Clock Thermometer Hygrometer Humidity Temperature Meter TL-8011 $6.00 This item is without retail box Product Description More clocks, thermometer-hygrometer for your choice. THE Table Clock SPECIFICATIONS Measuring Temperature Range: -10?~60 ? (14?~+140?) Temperature Accuracy: ± 1 ?(± 2?) Temperature Display Resolution: 0.1?(0.2?) Measuring Humidity Range: 10%RH ~ 99%RH Humidity Accuracy: ± 5% Humidity Display Resolution: 1%RH Max/Min Temperature and Humidity M… |
Ebay listings for Hygrometer Humidity products.
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Hanna Monitor Hygrometer HygroCheck Relative Humidity (HI 98601) Meter $109.00 |
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Analog Hygrometer Thermometer Time Clock Indoor Outdoor Humidity Temperature NEW $74.97 |
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Dual sauna thermometer & hygrometer (humidity) $45.00 |
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DECORATIVE 14″ INDOOR OUTDOOR WALL CLOCK TEMPERATURE HUMIDITY HYGROMETER GAUGE $47.89 |
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Thermor INDOOR HYGROMETER & THERMOMETER WITH BIOS COMFORT SCALE 258BC humidity $26.42 |
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Incubator Hygrometer – Humidity Monitor for Incubation $25.58 |
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Meade Wireless Indoor Outdoor Thermo Hygrometer Humidity Monitor Thermometer New $35.50 |
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Bemis Essik Air Humidity HYGROMETER / THERMOMETER $35.00 |
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GARDEN TREASURES FAUX WICKER WALL CLOCK THERMOMETER HYGROMETER HUMIDITY BROWN $26.95 |
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Thermor BIOS INDOOR HUMIDITY WITH TEMPERATURE 263BC hygrometer F/C grey 5.75×7 $23.48 |
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Springfield 91578 Decorative 13″ Dial Thermometer & Hygrometer (Humidity) $32.95 |
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Planet Waves Hygrometer Humidity And Temperature Sensor New Thermometers Dcor $32.81 |
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Acu-Rite Outdoor Thermometer. and Hygrometer (Humidity) $32.00 |
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Ecoplus Thermometer & Hygrometer Temperature Humidity Hydroponics $24.25 |
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wood moisture meter hygrometer humidity tester MC2G $28.99 |
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BI METAL GILT DIAL MAX MIN HYGROMETER & THERMOMETER HUMIDITY METER $18.96 |
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INDOOR OUTDOOR PATIO 11″ WALL THERMOMETER HYGROMETER HUMIDITY TEMPERATURE GAUGE $26.59 |
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Temperature Humidity Meter Hygrometer Thermometer for Greenhouse Hydroponics 812 $24.99 |
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Wine Cellar Thermometer/Hygrometer (measures temperature & relative humidity) $24.95 |
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THERMOMETER HUMIDITY Meter Hygrometer REMOTE SENSOR Hydroponics Temperature TEMP $24.94 |
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Active Air Digital INDOOR-OUTDOOR THERMOMETER w/ HYGROMETER Temperature Humidity $24.00 |
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NEW Active Air HygroThermometer LCD Hygrometer Humidity Temperature Display $23.75 |
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BI METAL GILT DIAL 100MM HYGROMETER & THERMOMETER HUMIDITY METER $15.80 |
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Brand New!Digital Thermometer with Hygrometer Alarm Clock Humidity $21.99 |
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Digital Temperature Thermometer Humidity Hygrometer New $7.25 |
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Digital Temperature Thermometer Humidity Hygrometer New $7.25 |
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TIMEX INDOOR OUTDOOR THERMOMETER TEMPERATURE HUMIDITY HYGROMETER GAUGE AND CLOCK $20.09 |
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Digital Thermometer Humidity Meter Hygrometer Air Temperature Moisture Sensor H3 $19.99 |
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Digital Indoor Outdoor In Out Thermometer Hygrometer Temperature Humidity TH803 $19.99 |
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Thermometer Humidity Meter Hygrometer Humidifier Air Temperature Moisture RH 01 $19.99 |
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Aube TE513 Thermometer & Humidity Hygrometer min/max $19.95 |
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Digital Thermometer w/ Hygrometer Alarm Clock Humidity $18.99 |
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Digital Thermometer w/ Hygrometer Alarm Clock Humidity $18.99 |
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Digital Thermometer w/ Hygrometer Alarm Clock Humidity $18.99 |
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Digital Temperature Thermometer Humidity Hygrometer New $7.89 |
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HYGROMETER FOR REPTILES. MEASURES HUMIDITY PRECISELY!!!! $6.89 |
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Aprilaire 9960 Wireless Weather Station Measure Humidity NEW BOX Hygrometer $16.99 |
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Reliable Digital Thermometer Hygrometer Humidity Temperature Min Max Memory $15.95 |
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Hot LCD Digital Thermometer Humidity IN/OUT Thermo Hygrometer Meter C/F $13.45 |
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2.8″ LCD Indoor/Outdoor Digital Humidity/Hygrometer + Thermometer (1*AAA) $8.59 |
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LCD Digital IN/OUT indoor outdoor Thermometer Hygrometer Humidity Meter $7.32 |
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LCD Display Temperature and Humidity Meter with Alarm Clock Hygrometer $12.36 |
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LCD Display Temperature and Humidity Meter with Alarm Clock Hygrometer $12.35 |
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IN/OUT Thermometer +Indoor Humidity Hygrometer w/Outdoor Temperature Sensor $10.64 |
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Hot LCD Digital Thermometer Humidity IN/OUT Thermo Hygrometer Meter C/F L $11.90 |
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Mini Hygrometer Indoor Wall Humidity Gauge for Greenhouse/Incubator/Cage/Aviary $7.89 |
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IN/OUT Thermometer +Indoor Humidity Hygrometer w/Outdoor Temperature Sensor $6.70 |
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LCD Thermometer Hygrometer Temperature Humidity Meter $6.18 |
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LCD Indoor/Outdoor Thermometer Hygrometer Temperature Humidity Meter Hi-Q U Pick $11.39 |
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Big Digit LCD C/F Thermometer Hygrometer Temperature Humidity Meter w/Alarm $9.40 |
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LCD Indoor/Outdoor Thermometer Hygrometer Temperature Humidity Meter Hi-Q U Pick $10.44 |
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LCD Indoor/Outdoor Thermometer Hygrometer Temperature Humidity Meter Hi-Q U Pick $10.44 |
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100% New 3 in 1 Digital Temperature Humidity Tester Clock Hygrometer L $10.13 |
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New Digital Humidity Meter Digital Hygrometer Temperature Gauge Thermometer ℃&℉ $9.99 |
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LCD Digital Alarm Clock Thermometer temperature time Humidity Hygrometer Meter $9.99 |
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LCD Digital Alarm Clock Thermometer temperature time Humidity Hygrometer Meter $9.99 |
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LCD Digital Alarm Clock Thermometer temperature time Humidity Hygrometer Meter $9.99 |
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LCD Thermometer Hygrometer hign low Temp Humidity Clock shipped same day USA $9.85 |
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LCD Indoor/Outdoor Thermometer Hygrometer Temperature Humidity Meter Hi-Q U Pick $9.49 |
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Digital Thermometer w/Hygrometer,Humidity,Alarm,Calendar, Temperature LCD Light $8.59 |
Humidity sensor technology trend analysis – sensor, humidity sensor – Electrical industry
In the industrial and agricultural production, weather, environmental protection, national defense, scientific research, aerospace and other departments, we often need to measure and control humidity. However, in the conventional environmental parameters, the most difficult to accurately measure the humidity is a parameter. With wet and dry bulb hygrometer to measure humidity, or hair hygrometer method, already unable to meet the needs of the development of modern technology. This is because the measurement of humidity and more complex than measuring the temperature, the temperature is measured is independent, while the humidity is affected by Other Factors (atmospheric pressure, temperature) effects. In addition, standard humidity is a problem. Foreign production of humidity calibration equipment is high.
Recent years, at home and abroad in the humidity Sensor R & D has made great strides. Humidity Sensor Are from simple humidity sensor to the integrated, intelligent, multi-parameter detection of the direction of rapid development, for the development of a new generation of humidity / temperature control system to create favorable conditions will also humidity measurement to a new level.
1 Humidity Sensor features Humidity sensor humidity sensor is the simplest. Main resistive humidity sensor, capacitive two categories.
1.1 Humidity resistance Humidity resistance is characterized by a layer of the substrate material with a sense of the wet membrane, when the air humidity sensitive membrane vapor adsorption, the components of the resistivity and resistance values are changed, the use This feature can measure humidity. Humidity resistance of many types, such as humidity resistance characteristics of metal oxide, silicon humidity resistance, humidity resistance and other ceramics. Humidity resistance of the advantages of high sensitivity, linearity and the major drawback is poor interchangeability of products.
1.2 Humidity Capacitance Humidity capacitance is generally made of polymer film capacitors, polymer materials commonly used are polystyrene, polyimide, cellulose acetate acid and so cool. When the ambient humidity changes, the capacitance of the dielectric constant humidity changes, it also changes the capacitance, its capacitance is proportional to the change in relative humidity. The main advantage of capacitive humidity sensing with high sensitivity and good product interchangeability, response speed, humidity, lag is small, easy to manufacture, easy miniaturization and integration, the accuracy generally is lower than the humidity resistance. Humidity Capacitance main overseas production factories have Humirel company, Philips Company, Siemens Corporation. SH1100 manufactured by Humirel Humidity Capacitance-type example, the measurement range (1% ~ 99%) RH, at 55% RH when the power capacity of 180pF (typical value). When the relative humidity changes from 0 to 100%, the change in capacitance range is 163pF ~ 202pF. Temperature coefficient of 0.04pF / , humidity lag was ± 1.5%, a response time of 5s.
Addition to resistive, capacitive-type humidity sensor, there is electrolyte ionic humidity sensor, humidity sensor type weight (wet film using a sense of weight change to change the oscillation frequency), intensity-based humidity sensor, SAW humidity sensor and so on. Humidity sensor linearity and anti-pollution, poor relative humidity in the test, the humidity sensor to be tested long-term exposure in the environment, are easily affected by pollution, measurement accuracy and long-term stability.
2 integrated humidity sensor performance characteristics and product categories
Present, foreign production integrated humidity sensor of the major manufacturers and typical products in Honeywell Inc. (HIH-3602, HIH-3605, HIH-3610 type), Humirel Corporation (HM1500, HM1520, HF3223, HTF3223 type), Sensiron Company (SHT11, SHT15 type). These products can be grouped into three types:
2.1 linear voltage output type integrated humidity sensor
Typical products HIH3605/3610, HM1500/1520.
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Caliber III Digial Humidity Temperature Gauge (hygrometer)
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