Humidity meters (Hygrometers)

 

Humidity is the amount of water vapor in the air. Water vapor is the gas phase of water and is invisible.[1] Humidity indicates the likelihood of precipitation, dew, or fog. Higher humidity reduces the effectiveness of sweating in cooling the body by reducing the rate of evaporation of moisture from the skin. This effect is calculated in a heat index table, used during summer weather.

There are three main measurements of humidity: absolute, relative and specific. Absolute humidity is the water content of air.[2] Relative humidity, expressed as a percent, measures the current absolute humidity relative to the maximum for that temperature. Specific humidity is a ratio of the water vapor content of the mixture to the total air content on a mass basis.

 

 

 
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POCKET HUMIDITY METER, economical type * Measurement : Humidity, Temp., Dew point * Pocket and compact housing case. * Fast response time. * Humidity : 10 to 95 %RH , Temp. : 0 to 50 oC. * Resolution : 0.1 %RH, 0.1 degree. * DC 9V battery (006P). * Separate probe. * Size : 135 x 60 x 33 mm.

Category: Barometers

SD Card real time data logger HUMIDITY/BAROMETER/TEMP. DATA RECORDER * Recorder with real time recorder, save the measuring data along the time information (year, month, date, minute, second) into the SD memory card and can be download to the Excel, extra software is no need. * Humidity : 10 to 90 %RH. * Temperature : 0 to 50.0 oC, oC/oF. * Barometer ; 10 to 1100 hPa, mmHg, inHg.

- Measuring humidity, temperature, wet bulb and dew point - Quick-response capacitance sensor - Max/Min/AVG and Data Hold - Auto power off and disable function - Low battery indication - Dual LCD display

Feature: -Provide temperature and humidity display with Dry,Wet,Comfort Indication -Monitor Max,Min temp./humidity reading -With water-proof external outdoor temperature sensor

Displays temperature and relative humidity / wet bulb temperature / dewpoint Max./min. values Hold button to freeze readings Display light Auto Off function TopSafe, the indestructible protection case (optional) Patented humidity sensor 2 year guaranteed long-term stability TopSafe, instrument protection against dirt and knocks (optional) Go for TST0191 if you do not need a cable  

P/N            : 0572.1754    Measuring Range    : 0 to 100%RH(humidity)                : -20 to +55 deg. C.(temp)                                           : -40 to 50 deg.C(td)(dew point            Resolution        : 0.1%RH / 0.1 deg. C.Accuracy        : +/- 0.4 Deg. C.                : +/- 2%RH    Channels        : 2 channels Meas. cycle        : 10s to 24hrs(Selectable)    Memory Capacity    : 1 million measured values, continuous...

Therma-Hygrometer simultaneously displays both the humidity and temperature in addition toindicating and recording the maximum and minimum readings. It includes colour-coded zones fordry, comfort and wet, making it very easy to read.The instrument measures temperature over the range of 0 to 50 °C and humidity over the range of10 to 99 %rh.This therma-hygrometer is ideal for monitoring both temperature and humidity in rooms, offices,factories and similar to ensure optimum working conditions are maintained.The unit is housed in an ABS case, measuring 20 x 100 x 110 mm, that incorporates a usefulfoldaway stand and a keyhole slot for hanging on a wall.*Without external sensorspecification temperature humidityrange 0 to 50 °C 10 to 99%rhresolution 0.1°C /°F 1%rhaccuracy ±1°C ±5%rhbattery 2 x 1.5 volt AAAbattery life 10000 hoursdisplay dual custom LCDdimensions 20 x 100 x 110mmweight 150 grams

Humidity and temperature measuring instrument incl. protective cap, batteries and calibration protocol TST0102 measures relative air moisture and temperature simultaneously. Dew point calculation and wet bulb as well as Hold function and max./min. display are possible with this instrument. Long-term stable Testo humidity sensor +/-2.5 %RH accuracy Incl. calibration protocol Dewpoint calculation and wet bulb included Hold function and max./min. values Protective cap for safe storage Belt case, wrist strap and calibration protocol included Backlit display Air moisture and air temperature Storage temperature -40 to +70 °C Operating temperature -10 to +50 °C Battery type 2 batteries Type AAA Battery life 200 h Weight 90 g Dimensions 119 x 46 x 25 mm Probe type NTC Meas. range -10 to +50 °C Accuracy ±0.5 °C Resolution 0.1 °C Probe type humid. sensor, cap. Meas. Range 0 to 100 %RH Accuracy ±2.5 %RH (5 to 95 %RH) Resolution 0.1 %RH