HM70 handheld temperature and humidity meter

▪ Multi language user interface

▪ Display measurement trend graphics

▪ The renowned Vaisala HUMICAP ® Sensor Technology

▪ 3 probes, temperature range -70...+180 ℃

▪ Multi probe combination can be used to connect dew point and carbon dioxide probes

▪ One header can connect two probes simultaneously

▪ Display multiple humidity parameters

▪ Sensor preheating and chemical removal function suitable for harsh environments

▪ Traceable to NIST (with accompanying verification certificate)

Three optional probes
HMP75 is a universal probe, while HMP76 is a long rod stainless steel probe, particularly suitable for on-site inspections in dusty environments. HMP77 uses a small probe with a 5-meter length
Probe cables are an ideal choice for measuring areas that are not suitable to reach.

relative humidity
Measurement range 0 .. 100 %RH
Accuracy (including nonlinearity, hysteresis, and repeatability)
+15 . .. +25 ℃ (+59 ...+77°F) 时 ±1 %RH (0 ... 90 %RH)
±1.7 %RH (90 ... 100 %RH)
-20 . At+40 ℃ (-4...+104 ° F) ± (1.0+0.008 x reading)% RH
-40 . At+180 ℃ (-40...+356 ° F) ± (1.5+0.015 x reading)% RH
Factory calibration ± 0.6% RH (0... 40% RH)
Uncertainty (+20 ℃/+68 ° F) ± 1.0% RH (40... 97% RH)
(defined as ± 2 standard deviation)
Response time (90%),+20 ℃ (+68 ° F), static air
HMP75 (with standard plastic grille filter) 17 seconds
HMP76 (with standard sintered copper filter) 60 seconds
HMP77 (with standard plastic grille and stainless steel mesh filter) 50 second sensor HUMICAP. 180R sensor
HUMICAP.180RC (with chemical removal and sensor preheating function)
Typical long-term stability exceeding 1% RH/year
temperature
measurement range
HMP75 -20 . .. +60 ℃ (-4 ... +140°F)
HMP76 -50 . .. +120 ℃ (-58 ... +248 °F)
Short term -50 .. +180 ℃ (-58 ... +356 °F)
HMP77 -70 . .. +180 ℃ (-94 ... +356 °F)
Accuracy [at+20 ℃ (+68 ° F)] ± 0.2 ℃ (± 0.36 ° F)