Humidity Hygrometer
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 New Accurate Durable Portable Mini Power Free Indoor Outdoor Humidity Hygrometer $1.59 Time Remaining: 17d 12h 4m Buy It Now for only: $1.59 |
 LCD Digital Thermometer Hygrometer Temperature Humidity Meter MAX Indoor Outdoor $0.99 Time Remaining: 1h 17m |
 Digital LCD Thermometer Temperature Humidity Meter Hygro Hygrometer Indoor Gauge $4.30 Time Remaining: 23d 14h 57m Buy It Now for only: $4.30 |
 MINI INDOOR WALL HYGROMETER THERMOMETER WET HUMIDITY $1.11 (2 Bids) Time Remaining: 3h 38m |
 Mini Digital LCD Thermometer Temperature Humidity Meter Gauge Hygrometer Indoor $3.28 Time Remaining: 1d 12h 7m Buy It Now for only: $3.28 |
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 LCD Digital Thermometer Hygrometer Temperature Humidity Meter MAX Indoor Outdoor $0.99 Time Remaining: 4h 17m |
 LCD Digital Indoor Thermometer Hygrometer Humidity Meter TL8025 $4.30 Time Remaining: 19d 13h 57m Buy It Now for only: $4.30 |
 New Accurate Durable Portable Mini Power Free Indoor Outdoor Humidity Hygrometer $1.79 Time Remaining: 17d 12h 4m Buy It Now for only: $1.79 |
 MINI INDOOR WALL HYGROMETER THERMOMETER WET HUMIDITY $2.05 (2 Bids) Time Remaining: 5h 14m |
 Mini Digital LCD Thermometer Temperature Humidity Meter Gauge Hygrometer Indoor $3.28 Time Remaining: 28d 14h 2m Buy It Now for only: $3.28 |
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 LCD Digital Thermometer Hygrometer Temperature Humidity Meter MAX Indoor Outdoor $0.99 Time Remaining: 5h 19m |
 Digital LCD Indoor Humidity Thermometer Hygrometer TL8005 $4.39 Time Remaining: 11d 15h 9m Buy It Now for only: $4.39 |
 Digital Temperature Gauge Digital Thermometer Humidity Meter Hygrometer $1.54 (4 Bids) Time Remaining: 5h 35m |
 Thermometer Hygrometer Temp Wet Temperature Humidity $1.00 Time Remaining: 24d 19h 43m Buy It Now for only: $1.00 |
 LCD Digital Thermometer Humidity Hygrometer Meter C F $66.48 Time Remaining: 16d 4h 55m Buy It Now for only: $66.48 |
 MINI INDOOR WALL HYGROMETER THERMOMETER WET HUMIDITY $0.99 (1 Bid) Time Remaining: 6h 39m |
 MINI INDOOR WALL HYGROMETER THERMOMETER WET HUMIDITY $3.33 Time Remaining: 11d 15h 36m Buy It Now for only: $3.33 |
 Digital Indoor Outdoor In Out Thermometer Hygrometer Humidity $58.49 Time Remaining: 7d 18h 20m Buy It Now for only: $58.49 |
 LCD Digital Thermometer Hygrometer Temperature Humidity Meter MAX Indoor Outdoor $0.99 Time Remaining: 7h 19m |
 2x Indoor Wall Thermometer Hygrometer Humidity Meter $6.49 Time Remaining: 28d 12h 29m Buy It Now for only: $6.49 |
 Digital LCD Temperature Humidity Hygrometer Thermometer Clock $8.39 Time Remaining: 17d 5h 30m Buy It Now for only: $8.39 |
 Digital Thermometer Hygrometer temperature measurement humidity TH 4 $1.06 Time Remaining: 7h 40m |
 28 LCD Digital Indoor Outdoor In Out Thermometer + Hygrometer Humidity Meter $7.47 Time Remaining: 23d 9h 37m Buy It Now for only: $7.47 |
 Mini Digital LCD Thermometer Humidity Temperature Hygrometer White $3.99 Time Remaining: 8d 5h 34m Buy It Now for only: $3.99 |
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 Digital Thermometer Humidity Hygrometer Clock calendar $6.99 Time Remaining: 8d 13h 29m Buy It Now for only: $6.99 |
 LCD Temperature Humidity Hygrometer Thermometerweather forcastClockprojection $17.80 (1 Bid) Time Remaining: 18h 11m |
 3x Digital Temperature Humidity Meter Hygrometer Clock $17.35 Time Remaining: 17d 5h 39m Buy It Now for only: $17.35 |
 Digital 43 LCD Indoor Outdoor Humidity Hygrometer Thermometer Meter $12.99 Time Remaining: 3d 10h 40m Buy It Now for only: $12.99 |
 Weather Station Humidity Thermometer Hygrometer Clock $8.99 Time Remaining: 20h 7m Buy It Now for only: $9.90 |
 Timex LCD Thermometer Clock Hygrometer Humidity Digital Indoor Outdoor Decor NEW $31.15 Time Remaining: 27d 5h 8m Buy It Now for only: $31.15 |
 LCD Digital Indoor Thermometer Hygrometer Humidity Meter Desk White $4.59 Time Remaining: 10d 9h 26m Buy It Now for only: $4.59 |
 LCD Digital Thermometer Hygrometer Temperature Humidity Meter MAX Indoor Outdoor $0.99 Time Remaining: 20h 47m |
 Digital LCD Temperature 40c 70c Humidity 10 RH 95 Hygrometer Thermometer $3.28 Time Remaining: 10d 8h 6m Buy It Now for only: $3.28 |
 LCD Digital Alarm Clock Thermometer temperature time Humidity Hygrometer Meter $6.99 Time Remaining: 13h 10m Buy It Now for only: $6.99 |
 19 Mini Digital LCD Humidity Hygrometer and Thermometer 1LR44 E486 $0.99 Time Remaining: 21h 2m |
 LCD Digital Temperature Humidity Meter Hygrometer Clock $8.39 Time Remaining: 17d 5h 20m Buy It Now for only: $8.39 |
 MINI INDOOR WALL HYGROMETER THERMOMETER WET HUMIDITY $2.01 (3 Bids) Time Remaining: 1d 4h 14m |
 Digital Temperature Humidity Meter Hygrometer Clock 152 $3.69 Time Remaining: 14d 20h 10m Buy It Now for only: $3.69 |
 Thermometer Hygrometer Temperature and Humidity Meter $6.99 Time Remaining: 20d 20h 41m Buy It Now for only: $6.99 |
 MINI INDOOR WALL HYGROMETER THERMOMETER WET HUMIDITY $2.25 (4 Bids) Time Remaining: 1d 4h 46m |
 Digital LCD Indoor Humidity Thermometer Hygrometer TL8005 $4.46 Time Remaining: 28d 14h 3m Buy It Now for only: $4.46 |
 Digital LCD Indoor Outdoor Humidity Hygrometer and Thermometer $9.99 Time Remaining: 18d 11h 19m Buy It Now for only: $9.99 |
 Digital LCD Home Indoor Thermometer Humidity Temperature Hygrometer Meter $4.55 Time Remaining: 1d 5h 31m Buy It Now for only: $5.55 |
 Hygrometer Humidity Meter Thermometer Temperature Gauge $1.39 Time Remaining: 20d 9h 56m Buy It Now for only: $1.39 |
 Digital Temperature Thermometer Humidity Hygrometer New $5.99 Time Remaining: 4d 13h 3m Buy It Now for only: $5.99 |
 IndoorOutdoor Humidity Meter Hygrometer LCD Display Digital Thermometer $0.99 Time Remaining: 1d 6h 45m |
 White Desktop Ornament Temperature Humidity Testing Thermometer Hygrometer $6.06 Time Remaining: 23d 1h 16m Buy It Now for only: $6.06 |
 New Digital LCD Indoor Thermometer Humidity Temperature Wet Hygrometer Meter $3.89 Time Remaining: 7d 10h 16m Buy It Now for only: $3.89 |
 3 IN 1 LCD Indoor Thermometer Hygrometer Humidity Clock $0.99 Time Remaining: 1d 7h 36m Buy It Now for only: $1.99 |
 Mini Digital LCD Thermometer Humidity Temperature Hygrometer White $3.96 Time Remaining: 24d 9h 55m Buy It Now for only: $3.96 |
 mini Digital LCD Temperature Thermometer Humidity Hygrometer 100 NEW $3.50 (10 Bids) Time Remaining: 1d 20h 44m |
 Hygrometer Wet Humidity Thermometer Temperature Meter $5.69 Time Remaining: 24d 15h 33m Buy It Now for only: $5.69 |
 Mini Digital LCD Thermometer Humidity Temperature Hygrometer White $3.99 Time Remaining: 24d 5h 52m Buy It Now for only: $3.99 |
 In Outdoor Digital C F Thermometer Humidity Hygrometer $5.39 Time Remaining: 2d 4h 30m |
 Hot LCD Digital IN OUT Thermometer Humidity Hygrometer Meter C F W $13.40 Time Remaining: 16d 11h 36m Buy It Now for only: $13.40 |
 New Digital LCD Indoor Thermometer Humidity Temperature Wet Hygrometer Meter $3.69 Time Remaining: 14d 5h 19m Buy It Now for only: $3.69 |
 Digital LCD Home Indoor Thermometer Humidity Temperature Hygrometer Meter $4.55 Time Remaining: 2d 5h 7m Buy It Now for only: $5.55 |
 LCD Digital Thermometer Hygrometer Temperature Humidity Meter MAX Indoor Outdoor $14.43 Time Remaining: 20d 4h 26m Buy It Now for only: $14.43 |
 Digital LCD Indoor Humidity Thermometer Hygrometer 6 $4.34 Time Remaining: 18d 11h 8m Buy It Now for only: $4.34 |
 MINI INDOOR WALL HYGROMETER THERMOMETER WET HUMIDITY $1.75 (3 Bids) Time Remaining: 2d 5h 55m |
 Hygrometer Wet Humidity Thermometer Temperature Meter $6.59 Time Remaining: 4d 15h 56m Buy It Now for only: $6.59 |
 Digital LCD Temperature Humidity Hygrometer Thermometer $4.99 Time Remaining: 2d 9h 59m |
 LCD Digital Temperature Thermometer Humidity Hygrometer $8.88 Time Remaining: 27d 20h 49m Buy It Now for only: $8.88 |
 Mini Digital LCD Thermometer Humidity Temperature Hygrometer White $3.99 Time Remaining: 27d 5h 53m Buy It Now for only: $3.99 |
 Digital Celsius Thermometer Hygrometer Humidity Meter $7.99 Time Remaining: 2d 20h 45m Buy It Now for only: $8.99 |
 LCD Digital Temperature Humidity Meter Hygrometer Clock $7.57 Time Remaining: 21d 1h 29m Buy It Now for only: $7.57 |
 Digital LCD Indoor Humidity Thermometer Hygrometer TL8005 $4.39 Time Remaining: 25d 16h 41m Buy It Now for only: $4.39 |
 Digital LCD Home Indoor Thermometer Humidity Temperature Hygrometer Meter $4.55 Time Remaining: 3d 5h 23m Buy It Now for only: $5.55 |
 LCD Digital Indoor Thermometer Hygrometer Humidity Meter Desk White $4.69 Time Remaining: 25d 10h 56m Buy It Now for only: $4.69 |
 LCD 3 IN 1 Indoor Thermo Humidity Hygrometer Clock B3 $10.67 Time Remaining: 25d 11h 51m Buy It Now for only: $10.67 |
 mini Digital LCD Temperature Thermometer Humidity Hygrometer 100 NEW $3.50 (9 Bids) Time Remaining: 3d 19h 44m |
 2x Digital Temperature Humidity Meter Hygrometer Clock $12.35 Time Remaining: 17d 5h 6m Buy It Now for only: $12.35 |
 Digital Thermometer w HygrometerHumidityclockAlarmCalendarBacklit LCD Light $6.99 Time Remaining: 19d 11h 25m Buy It Now for only: $6.99 |
 DC30V Digital Thermometer Humidity Meter Hygrometer Digital Temperature Gauge $0.99 (1 Bid) Time Remaining: 3d 21h 20m |
 Digital LCD Temperature Thermometer Hygrometer Humidity $4.37 Time Remaining: 18d 10h 1m Buy It Now for only: $4.37 |
 Digital LCD Home Indoor Thermometer Humidity Temperature Hygrometer Meter $4.55 Time Remaining: 4d 5h 14m Buy It Now for only: $5.55 |
 Digital LCD Thermometer Humidity Temperature Hygrometer $0.99 Time Remaining: 23d 13h 42m Buy It Now for only: $0.99 |
 Digital Indoor Outdoor Thermometer Humidity Hygrometer $1.00 Time Remaining: 27d 19h 44m Buy It Now for only: $1.00 |
 WEATHER STATION HUMIDITY THERMOMETER HYGROMETER CLOCK $8.99 Time Remaining: 5d 22h 11m Buy It Now for only: $9.90 |
 LCD Digital Thermometer Hygrometer temperature humidity $7.19 Time Remaining: 20d 20h 41m Buy It Now for only: $7.19 |
 LCD Digital Temperature Humidity Meter Hygrometer Clock $6.79 Time Remaining: 4d 11h 19m Buy It Now for only: $6.79 |
 Digital Indoor Dual Humidity Temperature Comfort Monitor Gauge Hygrometer $17.69 Time Remaining: 6h 22m |
 LCD Digital Thermometer Humidity Hygrometer TH 4 $6.39 Time Remaining: 28d 18h 23m Buy It Now for only: $6.39 |
 Digital Thermometer Humidity Meter Hygrometer Calendar Alarm C F unit Functions $9.79 Time Remaining: 21d 10h 35m Buy It Now for only: $9.79 |
 Digital Indoor Dual Humidity Temperature Comfort Monitor Gauge Hygrometer $17.69 (1 Bid) Time Remaining: 2d 4h 15m |
 LCD Indoor Thermometer Hygrometer Temperature Humidity $1.00 Time Remaining: 6d 8h 29m Buy It Now for only: $1.00 |
 LCD Display Temperature and Humidity Meter with Alarm Clock Hygrometer $0.01 Time Remaining: 7h 6m |
 Digital Indoor Outdoor Thermometer Humidity Hygrometer $1.00 Time Remaining: 1d 1h 59m Buy It Now for only: $1.00 |
 LCD Desk Wet Digital Thermometer Meter Moonphase Time Hygrometer Humidity C $8.74 Time Remaining: 13d 9h 52m Buy It Now for only: $8.74 |
 LCD Digital Indoor Thermometer Hygrometer Humidity Meter TL8025 $4.24 (8 Bids) Time Remaining: 13h 30m |
 MINI INDOOR WALL HYGROMETER THERMOMETER WET HUMIDITY 1 $4.79 Time Remaining: 12d 11h 37m Buy It Now for only: $4.79 |
 Indoor Wall Mountable Humidity Thermometer Hygrometer $6.27 Time Remaining: 1d 5h 3m Buy It Now for only: $6.27 |
 LCD Digital Indoor Thermometer Hygrometer Humidity Meter TL8025 $3.88 (8 Bids) Time Remaining: 1d 14h 8m |
 Digital LCD Temperature Humidity Hygrometer Thermometer $1.98 Time Remaining: 14d 6h 38m Buy It Now for only: $1.98 |
 Digital Wall Desk Clock Alam LCD Indoor Temperature Humidity Meter Hygrometer M4 $10.99 Time Remaining: 7d 18h 58m Buy It Now for only: $10.99 |
 LCD Digital Indoor Thermometer Hygrometer Humidity Meter TL8025 $3.25 (7 Bids) Time Remaining: 2d 14h 46m |
 Digital 38 LCD Indoor Outdoor Humidity Hygrometer Thermometer Meter Tester $16.01 Time Remaining: 29d 2h 32m Buy It Now for only: $16.01 |
Humidity Hygrometer
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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What should be the humidity in my incubator ?
I'm hatching chickens and i have a forced air incubator, and i just bought a Taylor digital thermometer and hygrometer what should be the Humidity on hygrometer?
I use a still air incubator,the hygrometer for a still air is usually 60 to 62 percent.Increased to 70 during the hatch.
Caliber III Digial Humidity Temperature Gauge (hygrometer)