Si-HH3 Thermo-Hygrometer – Precise Humidity & Temperature Measurement

Thermo-hygrometer with integrated thermo-hygrometry probe

The Si-HH3 Thermo-Hygrometer is a compact, palm-sized instrument designed for accurate measurement of relative humidity and temperature. Featuring an integrated thermo-hygrometry probe, it’s perfect for HVAC professionals who need reliable data for environmental monitoring and system diagnostics.


Wide Measurement Capabilities

  • Humidity: 0.00% to 100.00% RH
  • Temperature: -20.00°C to 60.00°C
  • Dew Point: -40.00°Ctd to 60.00°Ctd
  • Absolute Humidity: 0.00 to 600.00 g/m³


Supported Measuring Units

  • Temperature: °C, °F
  • Relative Humidity: % RH
  • Dew Point: °Ctd, °Ftd
  • Wet Bulb Temperature: °C Tw, °F Tw
  • Absolute Humidity: g/m³, g/kg
  • Enthalpy: kj/kg


Why Choose the Si-HH3 Thermo-Hygrometer?

  • Compact and easy to carry for on-site use
  • Provides essential humidity and temperature data for HVAC system optimisation
  • Ideal for environmental monitoring, indoor air quality checks, and maintenance diagnostics


Optimise Your HVACR Environmental Measurements

Count on the Si-HH3 Thermo-Hygrometer for fast, accurate readings of humidity and temperature, enabling precise control over HVAC system performance and indoor comfort.


Thermohygrometer with probe

   

Features:
 

  • Backlit LCD screen
  • Calculated values on mobile App (free)
  • Magnetic backing for easy fixing
  • Carrying bag



Si-HVACR Measurement MobileApp

Software for SI-HH3

Supplied with:

1 Certificate of conformity

1 Quick Start Guide

3 Alkaline batteries LR03 AAA 1.5 V

1 Carrying bag


This app displays on your smartphone screen all the results in real time and allows the management of measurement datasets over a duration of your choice

Create save and export reports in PDF, CSV or XML format. 


Si-HVACR Measurement MobileApp relays the following measurements: 

  • Temperature (thermocouple, NTC, ambient, infrared)
  • Relative humidity
  • Pressure
  • Air velocity
  • Calculated parameters (air velocity, airflow, dew point, absolute humidity, enthalpy, mixing ratio, wet bulb temperature).


Technical Details
Parameters Humidity Temperature
Display 2-line display
IP Protection IP 20
Battery Life 250 hours
Standards 2011/65/EU RoHS II
2012/19/UE DEEE
2014/53/EU RED
Wireless Connection Yes
Power Supply 3 alkaline batteries LR03 AAA 1.5 V
Probe Type Built in Probe
Protective Cover not included
Operating Temperature Min: -10.00 °C Max 60.00 °C
Dimensions 70 mm L x 33 mm W x 228 mm
Weight 200g
Storage Temperature Min -20.00 °C Max 70.00 °C