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.

 

 

 
  • Filter

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.

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

* Triple LCD Display for RH% Humidity, T1 for Air Temperature and T2 Type K Thermometer (-200 ℃ ~ 1333 ℃ ). * Dew Point Reading. * Max / Min / Data Hold. * Real Time Stamp. * Periodically Print out from Pre-Set time Interval. Measuring Range T1 : Temperature : - 20 ℃ ~ 60 ℃ (- 4 ℉ ~ 140 ℉ ) Humidity : 10%RH ~ 95%RH T2 : Type K : - 200 ~ 1333 ℃ (- 58 ~ 2431 ℉ ) Resolution 0.1 ℃ /0.1 ℉ /0.1%RH Accuracy T1 : Temperature : +/- 0.8 ℃ , +/- 1.5 ℉ Humidity : +/- 3%RH (at 25 o C, 30….95%RH) T2 : Type K : - 50 ℃ ~ 500 ℃ , +/- (0.1%rdg + 0.8 ℃ ) 500 ℃ ~ 1333 ℃ , +/- (0.2%rdg + 1.8 ℃ ) Input Protection 60V DC or 24 Vrms AC maximum input voltage on any Combination of input Connector. Sampling Rate 1 time/sec Operating Conditions 0 ℃ ~ 40 ℃ (32 o F ~ 104 ℉ ) 10 ~ 80% R.H. Power Source 6 pcs size AAA Alkaline Battery or 9V DC adaptor/500mA minimum. Battery Life Approx. 30 hours. ( interval printing = 60 minute, not including beeper). 70 hours ( except printing & beeper). Size 193(L) x 74(W) x 37(H)mm Weight Approx. 385g Accessories 1. Carrying case, Instruction manual,...

- 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

Dew point and wet bulb temperature measurement Fast response Auto Power off Dual display for temperature and humidity MAX/MIN function Resolution 0.1°C, 0.1°F, 0.1%RH

humidity/temperature instrument, incl. plug-in humidity probe head, battery and calibration document Displays temperature and relative humidity / wet bulb temperature / dewpoint Max./min. values Hold button to freeze readings Display light

    Storage temperature -30 to +70 °C Operating temperature -20 to +50 °C Battery type Alkali manganese, mignon, Type AA Battery life 200 h Weight 428 g Dimensions 220 x 74 x 46 mm Material/Housing ABS/TPE/Metal Probe - Typ T (Cu-CuNi) Meas. range -200 to +400 °C Accuracy ±0.3 °C (-60 to +60 °C) ±0.5% of mv (remaining range) Resolution 0.1 °C Probe - NTC Meas. range -40 to +150 °C Accuracy ±0.2 °C (-25 to +74.9 °C) ±0.4 °C (-40 to -25.1 °C) ±0.4 °C (+75 to +99.9 °C) ±0.5% of mv (remaining range) Resolution 0.1 °C Probe type Type K Meas. Range -200 to +1370 °C Accuracy ±0.3 °C (-60 to +60 °C) ±(0.2 °C + 0.3% of mv) (remaining range) Resolution 0.1 °C Probe type Absolute pressure probe Meas. Range 0 to 2000 hPa Resolution 0.1 hPa Probe type humid. sensor, cap. Meas. Range 0 to +100 %RH Resolution 0.1 %RH