Vaisala HM40 Hand-Held Humidity & Temperature Meter

Features

  • Humidity measurement range 0 …100 %RH
  • Temperature measurement ranges -40 … +100 °C (-40 … +212 °F), depending on the probe model. The HM46 model can measure up to +180 °C (+356 °F) for a short period of time.
  • Incorporates proven Vaisala HUMICAP sensor technology.
  • Calibration reminder function
  • Probes can be user calibrated using an on-site reference
  • The graphical display indicates when the measurement has stabilized
  • Hold-button to freeze the screen and save the reading
  • Multilingual user interface available in 10 languages (EN, DE, FR, JA, ZH, PT, ES, RU, FI, SV)
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Dpstar is a leading supplier of environmental measurement sensors for temperature, relative humidity, pressure, dew point, CO2, and other environmental condition monitoring for industrial process application and research. Since the ’90s, we earned a reputation as a trusted partner to our clients through our commitment and dedication. We are an authorized distributor and supplier of measuring sensors solutions from renowned manufacturers Vaisala. Vaisala is a global leader in environmental and industrial measurement. Building on 80 years of experience, Vaisala provides observations for a better world. Vaisala is a reliable partner for customers around the world, offering a comprehensive range of innovative observation and measurement products and services.

Compact, portable, and easy-to-use Vaisala HUMICAP HM40 Handheld Humidity Meter is designed for spot-checking in a wide variety of environments. It provides reliable measurements in a wide range of applications. It is the ideal spot-checking tool for everything from structural moisture measurement and air conditioning systems to humidity measurement in industrial production processes and life science applications. There are four different models available: HM41, HM42, HM45, and HM46.

Dimensions

HM41 Series

HM42 Series

HM45 Series

HM46 Series

Benefits

  • Compact, portable, and easy to use
  • Versatile meter with wide measurement range and multiple calculated parameters
  • Ideal for spot-checking in a wide variety of applications

Simple and Easy to Use

HM40 has a large, user-friendly graphical display and easy-to-use push buttons. The user interface is simple and intuitive and available in 10 languages. Also, many settings can be modified to meet users’ individual needs. In addition to relative humidity and temperature, HM40 provides five calculated humidity parameters, all of which are available in metric and non-metric units. HM40 is powered by 2 AA batteries. An external USB charger and rechargeable AA-sized NiMH batteries are available as an option. Each model also comes with a handy belt clip and case.

Easy Recalibration

Calibrating HM40 is easy. The meter or the probe can be sent to a Vaisala Service Center for recalibration. Alternatively, calibration can be completed on-site by users with a humidity reference such as another hand-held meter or Vaisala Humidity Calibrator HMK15. The indicator includes a calibration reminder function that can be activated by the user.

Specification

HM41 Series
Humidity Measurement Accuracy (Including Non-linearity, Hysteresis, and Repeatability)
At 0 … +40 °C ±1.5 %RH (0 … 90 %RH)
±2.5 %RH (90 … 100 %RH)
At -10 … 0 °C and +40 … +60 °C ±3.0 %RH (0 … 90 %RH)
±4.0 %RH (90 … 100 %RH)
Humidity sensor HUMICAP 180R
Temperature measurement range -10 … +60 °C (+14 … +140 °F)
Temperature sensor Pt1000 RTD Class F0.1 IEC 60751
Measurement probe Interchangeable HMP113 probe
Probe material PC/ABS plastic blend (white)
IP rating IP54
Weight (with alkaline batteries) 230 g (8.1 oz)
Filter material PC (glass-reinforced)
HM42 Series
Humidity Measurement Accuracy (including Non-linearity, Hysteresis, and Repeatability)
At 0 … +40 °C ±1.5 %RH (0 … 90 %RH)
±2.5 %RH (90 … 100 %RH)
At -40 … 0 °C and +40 … +80 °C ±3.0 %RH (0 … 90 %RH)
±4.0 %RH (90 … 100 %RH)
At +80 … +100 °C ±4.0 %RH(1)
Humidity sensor HUMICAP 100R-Mini
Temperature measurement range -40 … +100 °C (-40 … +212 °F)
Temperature sensor Pt1000 RTD Class F0.3 IEC60751
Measurement probe HM42PROBE
Probe head material Stainless steel
IP rating IP40 (probe), IP54 (indicator)
Weight (with alkaline batteries) 370 g (13.1 oz)
Filter material Stainless steel and PTFE membrane
Probe cable length 1500 mm (59 in)
(1) Not recommended for Td > 85 °C
HM45 Series
Humidity Measurement Accuracy (Including Non-linearity, Hysteresis, and Repeatability)
At 0 … +40 °C ±1.5 %RH (0 … 90 %RH)
±2.5 %RH (90 … 100 %RH)
At -40 … 0 °C and +40 … +60 °C ±3.0 %RH (0 … 90 %RH)
±4.0 %RH (90 … 100 %RH)
Humidity sensor HUMICAP 180R
Temperature measurement range -40 … +60 °C (-40 … +140 °F)
Temperature sensor Pt1000 RTD Class F0.1 IEC 60751
Measurement probe Interchangeable HMP113 with HM40HANDLE
Probe material PC/ABS plastic blend (white)
IP rating IP54
Weight (with alkaline batteries) 330 g (11.6 oz)
Filter material PC (glass-reinforced)
Probe cable length 1200 mm (47 in)
HM46 Series
Humidity Measurement Accuracy (Including Non-linearity, Hysteresis, and Repeatability)
At 0 … +40 °C ±1.5 %RH (0 … 90 %RH)
±2.5 %RH (90 … 100 %RH)
At -40 … 0 °C and +40 … +80 °C ±3.0 %RH (0 … 90 %RH)
±4.0 %RH (90 … 100 %RH)
At +80 … +100 °C ±4.0 %RH
Humidity sensor HUMICAP 180R
Temperature measurement range -40 … +100 °C (-40 … +212 °F), shortterm up to +180 °C (+356 °F)
Temperature sensor Pt1000 RTD Class F0.1 IEC 60751
Measurement probe HM46PROBE
Probe head material Stainless steel, brass filter
IP rating IP40 (probe), IP54 (indicator)
Weight (with alkaline batteries) 490 g (17.3 oz))
Filter material Sintered brass
Probe cable length 1500 mm (59 in)
(1) Not recommended for Td > 85 °C

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