We Checkline Europe B.V. would like to use cookies and similar technologies in order to optimize your shopping experience and this requires your consent. By clicking on the "Accept cookies" button you agree to our use of cookies and similar technologies. If you do not agree, you can refuse the use or customize settings for the respective cookies by clicking on the button "Cookie Settings".You also have the possibility to specify that only certain cookies, which we use on our website, should be activated. This banner will be displayed until you have selected your cookie preferences. If you decide against the use of cookies, we will not use cookies nor similar technologies, except those that are essential for the proper functioning of the website. Click here for our privacy policy

RH2 Relative Humidity Meter With External Probe

Precision hygrometer with datalogger and external probe with 2 meter connecting cable
Measure climate humidity easily, fast and accurately with the RH2 relative moisture meter, optionally available with a PC-interface, software and printer.

How does it work?
Relative humidity is the amount of water vapor that exists in a gaseous mixture of air and water and is normally expressed as a percentage.

The relative humidity of an air-water vapor mixture can be estimated if both the measurement temperature and the dew point temperature of the mixture are known. This approach to measuring humidity requires an equation expressing the saturation vapor pressure as a function of temperature, the result of this equation is displayed by the RH2 hygrometer automatically as a reliative humidity percentage.

The RH2 hygrometer is the perfect instrument to air humidity control and quality assurance!

  • Measure relative humidity, absolute humidity, dew point, equilibrium moisture content and AW value
  • Easy data storage for printing or analysis on PC
  • Durable humidity- and temperature sensors
  • Menu language in English, German, French, Italian, Spanish and Russian
  • Hold function allows saving of results manually
  • Fast conditioning

External Sensors
Two external sensors are available for the RH2, a plastic external sensor and a metal stabbing probe.

External plastic moisture and temperature sensor for RH2

External metal stabbing probe for RH2

Complete Kit
The RH2 is delivered as a complete kit including:
  • RH2 Moisture Meter
  • Moisture & Temparature Probe
  • Wooden Case
  • Batteries
  • User Manual
  • External sensor or stabbing probe (depending on your selection)

Calibrated on
  • Relative humidity
  • Absolute humidity
  • Dew point
  • Wood
  • POM

Measurnig RangeRelative air humidity 0 to 100%
Relative Humidity Calibration±2.5% (0 to 90%) at 25°C
Temperature Range-20 to 85°C
Temperature Resolution0.1°C
Temperature Measurment Accuracy±0.5°C (at 25°C) Pt 1000 DIN B
Temperature Units°C or °F
Dew Point Temperature Range-55 to 60°C (-67 to 140°F)
Dew Point Temperature Resolution0.1°C
Absolute Air Humidity Range0 to 130 g/m³
Absolute Air Humidity Resolution0.1 g/m³
Equilibrium Moisture Content Range2 to 30% Ugl
Equilibrium Moisture Content Resolution0.1%
Equilibrium Moisture Content Calibration5 to 15%
Equilibrium Moisture Content Accuracy±0.5% (at 25°C)
Date LoggerAutomatic data log for 10.000 logs with measuring point report
Data Output (RH2-USB only) USB interface (supplied with data transfer cable & software)
Power4x 1.5 Volt AA batteries
Warranty2 years


CAL-UNIT Calibration Adapter for RH Moisture Meters & RMS-TD Transmitters

  • CAL-UNIT-TUBE - Calibration adapter for tube sensors
  • CAL-UNIT-SWORD - Calibration adapter for sword sensor

More details

CAL-UNIT Calibration Adapter for RH Moisture Meters & RMS-TD Transmitters 127539

Li-Ion Rechargeable AA Batteries via the USB to USB-C

  • Li-Ion rechargeable battery
  • Stable voltage of 1,5 V over 95% of the runtime
  • Charged via the USB to USB-C cable

More details

Li-Ion Rechargeable AA Batteries via the USB to USB-C 127554

Buy Now

RH2 + SENSOR - Relative humidity meter with external sensor kit
€ 575,00 
RH2 + Case + PROBE - Relative humidity meter with external probe kit
€ 1.114,00 
RH2-USB + Wooden Case + SENSOR - Relative humidity meter with external sensor kit
€ 925,00 
RH2-USB + Wooden Case + PROBE - Relative humidity meter with external sensor kit
€ 1.235,00 

RH2-Probe - Stabbing Sensor for RH2
€ 676,00 
RH2-Sensor - Moisture and Temperature Sensor with 2 meter cable
€ 391,00 
RH1/RH2-Wall mount assembled on RH1/RH2
€ 38,00 
Humi-Sensor-Cap Stainless Steel Sinter Sensor Cap
€ 43,00 
CAL-UNIT-TUBE - Calibration adapter for tube sensor
€ 192,00 
Humi-Adapter - Paper web adapter for Humimeter RH2 and LF-Serie
€ 670,00 
RH-CAL-AMPVAR - Certified calibration ampoules 2x35%, 1x50%, 2x80%
€ 114,00 
RH-CAL-AMP50 - Certified calibration ampoules 5 x50%
€ 114,00 
Calibration Certificate - Factory calibration certificate protocol for humidity meters
€ 136,00 
Li-Ion Rechargeable AA Batteries - 4 pcs (with USB to USB-C cable)
€ 25,00 
All mentioned prices are excluding VAT & excluding shipment costs.
Availability: Available: 1 - 3 days, Delivery time: 1 - 3 weeks, special order request

Request offer
Your information request is sent!
We'll contact you as soon as possible.