Lab Instruments: Vaisala Thermohygrometer

Vaisala Thermohygrometer Reviews

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Vaisala Thermohygrometer Feature

Vaisala Pocket Size Thermohygrometers
Lightweight, pocket-sized meter with superior accuracy
Larger graphic display that shows when the measurement is stabilized
Provides 6 calculated measurements: RH, Temperature, Td, Tw, a x, h
Multilingual user interface with 10 language options
Easy-to-use menu
Replaceable probe
RH range: 0 to 100%
Type: Meter
RH resolution: 0.1%
RH accuracy: at 0 to 40C (32 to 104F) ±1.7 %RH (0 to 90 %RH) / at -10 to 0C and 40 to 60C (14 to 32F
Temp range: -10 to 6C (14 to 140F)
Temp resolution: 0.1°
Output: Displays: RH, T, Td, Tw, a x, h
Response time: 90% response time in 17 seconds
Temp accuracy: at 0 to 40C (32 to 104F) ± 0.2C (0.36F) / at -10 to 0C and 40 to 60C (14 to 32F and 1
Display: LCD (140 x 160 pixels)
Power: 2 x AA sized, 1.5V (included)
Dimensions: 230 x 72 x 44 mm
Manufacturer number: HM40-A1AB
Brand: Vaisala
Model: HM40-A1AB
Make: HM40
Part Number: AO-37801-10
Package Quantity: EACH

The Vaisala hand-held meter provides a fast and convenient way to accurately spot-check relative humidity and temperature in a wide range of environments and applications. The HM40 incorporates Vaisala HUMICAP® sensor that provides high accuracy, excellent long term stability, negligible hysteresis, and insensitivity to dust and most chemicals. The meter also features a hold button that retains the measurement data until it has been recorded, and automatic shut off.