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

RH1 Relative Humidity Meter With Memory

Made in the EuPrecision hygrometer with datalogger
Measure climate humidity easily, fast and accurately with the RH1 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 RH1 hygrometer automatically as a relative humidity percentage.

The RH1 hygrometer is the perfect instrument to aid humidity control and quality assurance!

  • Takes measurements within a matter of seconds
  • Easy data storage for printing or analysis on PC (on RH1-USB only)
  • Durable humidity and temperature sensors
  • Menu language in English, German, French, Italian, Spanish and Russian
  • Hold function allows saving measurement values manually

Complete Kit
The RH1 is delivered as a complete kit including:
  • RH1 Moisture Meter
  • Wooden Case
  • Batteries
  • User Manual

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

Measuring RangeRelative air humidity 0 to 100%
Relative Humidity Calibration±1.5% (10 to 90%) at 25°C
Temperature Range-10 to 60°C (14 to 140°F)
Temperature Resolution0.1°C
Temperature Unitscan be set to °C and °F
Temperature Measurement Accuracy±0.3°C (at 25°C) Pt 1000 DIN B
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)
Data LoggerAutomatic data log for 10.000 logs with measuring point report
Data Output (RH1-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

RH1 - Relative Humiditymeter with Datalog
€ 360,00 
RH1-USB - Relative Humiditymeter with Datalog & USB Output
€ 763,00 

HM-BTM Bluetooth module for devices with USB interrface
€ 432,00 
PRINTER-Portable Battery Powered Thermo Printer
€ 426,00 
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 
RH-CAL-AMPVAR - Certified calibration ampoules 2x35%, 1x50%, 2x80%
€ 114,00 
RH-CAL-AMP50 - Certified calibration ampoules 5 x50%
€ 114,00 
RH-CAL-AMP80 - Certified calibration ampoules 5 x80%
€ 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
Checkline Europe
Your information request is sent!
We'll contact you as soon as possible.