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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Created on: 18 May 2013

- 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.

Created on: 19 May 2013

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  

Created on: 19 May 2013

- 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

Created on: 21 May 2013

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  

Created on: 21 May 2013

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 type NTC Meas. range -10 to +70 °C Resolution 0.1 °C Probe type humid. sensor, cap. Meas. Range +2 to +98 %RH Resolution 0.1 %RH

Created on: 21 May 2013

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

Created on: 21 May 2013

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

Created on: 21 May 2013

- 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