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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  Name SKU Description Category
TEN422 ADVANCED AIRFLOW/TEMP/RH BENDABLE TELESCOPIC AIRFLOW METER - Fast response telescoping probe. - Air flow volume. - Large LCD display. - Displays air (wind) speed in meters/second,feet/minute, kilometers/hr, knots, and miles/hr. - Displays maximum and minimum readings and holds any reading. - Manual Data Memory and read fucntion (99 records). - Auto Data memory with USB interface (30,000 records). - Dew point, Wet Bulb calculation. - Absolute pressure measurement. Airflow meters
DER012 Water-Proof Thermometer Display Feature: -Water-Proof --30c to +70c -High Accuracy Thermometers
DER013 Water-Proof Thermometer Display (with 50cm temp cable) Feature: -Water-Proof --30c to +70c -High Accuracy Thermometers
LUT0227-MHB-3824SDV2 HUMIDITY/ BAROMETER/TEMP RECORDER WITH SD CARD RECORDER 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. Barometers
TEN860-TM-183P HANDHELD TEMPERATURE HUMIDITY METER W 200 READINGS STORAGE Product Description- Dual display of temperature and humidity.- Select between different temperature scales (°C / °F).- Simultaneously hold both temperature and humidity readings.- Simultaneously hold both Maximum and Minimum and Average readings (MAX/MIN/AVG) with time marks.- Relative subtraction value (REL) function.- Alarm alert (SET) function.- Auto-power off.- DEW-POINT and WET-BULB temperature measurement.- Stores up to 200 readings   Humidity meters (Hygrometers)
TEN980-POCKET, TEMPERATURE/HUMIDITY METER - 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 Humidity meters (Hygrometers)
TEN810-Datalogging Large Wall Display Temperature /Humidity Monitor with 95dB Sound Alarm/Controller Complete environmental monitor and alarm  - Wall-Mounted LED type, easy reading  - Alarm set for Hi and Low limit-Temperature and Humidity  - Data Logging Capacity 30,000 records - LED displays real time data  - USB interface- XL Display: 260 x 178 x 47mm- High Accuracy and high sensitivity   Wall-display humidity meters
CEN0017- Wall Display Hygro Thermometer (With Alarm) 31 Large, easy-to-read dual LCD displays Humidity and Temperature. 3%RH humidity accuracy. Calibration available on site. Desk or wall mount. MAX/MIN value monitor. Audible and visual alarms, with adjustable set points, warns if limits are exceeded.         31 Hygro Thermometer (With Alarm)     This is our proposed full time environmental monitoring system. Its detachable probe and can be verify or calibrated through optional signal extending... Wall-display humidity meters
TST0189/190 - Wall Display Thermo-Hygrometer with/without alarm with Resolution 0.1 deg.c The accurate TST0189/190 alarm hygrometer reliably indicates when humidity and temperature limits have been exceeded, for example in garden centres, warehouses, cleanrooms, museums, laboratories etc. All the benefits of TST0189 High accuracy ±2 %RH (TST0190) TST0190 with LED alarm, warns if limits are exceeded Storage temperature -40 to +70 °C Operating temperature -10 to +70 °C Battery type 9V block battery Battery life 8736 h Weight 168 g Material/Housing ABS   Probe... Wall-display humidity meters
KKI0002-Wall Display Thermo-Hygrometer with max/min reading and external sensor JB913 Feature: -Provide temperature and humidity display with Dry,Wet,Comfort Indication -Monitor Max,Min temp./humidity reading -With water-proof external outdoor temperature sensor Wall-display humidity meters
KKI0002E-JB914 (IMPROVED VERSION) LARGE DISPLAY THERMOMETER/ HUMIDITY W BAR CHART 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... Wall-display humidity meters
TST0468-623 HYGROMETER WITH HISTORY FUNCTION OF THE MEASUREMENT VALUES, Hanging and standing bracket allows felxible positioning on a wall or desktop Analysis of past temperature and humidity values directly on site without evaluation on a PC All important values at a glance: current and past temperature and humidity values as well as date and time Wall-display humidity meters
TST0467-622 HYGROMETER WITH PRESSURE DISPLAY, INCL. CALIBRATION PROTOCOL, BATTERIES Precise measurement of temperature, humidity and pressure All important values at a glance: current measurement values as well as date and time Calibration and adjustment of the measuring instrument possible on site with the optional calibration and adjustment software Adjustable calibration reminder function Wall-display humidity meters
EXT0069RH520A HUMIDITY+TEMPERATURE CHART RECORDER Graphical and digital display of relative humidity and temperature Stores up to 49,000 readings in internal memory Review recorded data on meter display or download readings to a PC via included RS-232 cable Programmable High and Low alarm set points Swivel control panel acts as desk stand or is flush with meter for wall mounting Wall-display humidity meters
TEN811-Large Wall Display Temperature/Humidity Monitor with 95dB Sound Alarm/Controller - Complete environmental monitor and alarm  - Wall-Mounted LED type, easy reading  - Alarm set for Hi and Low limit-Temperature and Humidity - LED displays real time data Wall-display humidity meters
TEN880D-TM-188D HEAT STRESS WBGT METER WITH TEMP/RH/DEW POINT - Dataloggin, Quick-response capacitance sensor, accurate measurement for wet bulb globe temperature(WBGT), black globe temperature(TG), humidity(%RH), air temperature(TA), wet bulb(WET) and dew point(DEW). - Max/Min and data hold. - Low battery indication. - LCD display with LED backlight. - Viewing data records. - Switch the temperature unit to ℃ or ℉. - Brass black ball in 50mm diameter. - WBGT alarm setting. - Auto power off with disable function. - Data logging capacity: 12000... Portable humidity meters
LUT0041-HT305 Portable Temperature and Humidity Meter 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. Portable humidity meters
TST0103-625 COMPLETE HUMIDITY/TEMPERATURE MEASURING INSTRUMENT COMPLETE WITH CONNECTION CABLE 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   Portable humidity meters
TST0102-610 Humidity and temperature measuring instrument 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... Portable humidity meters