[![si-hh3](/sites/default/files/styles/product_image/public/images/hh3-.png?itok=HyX6kWp8)](https://www.kimo-instruments.com/sites/default/files/styles/max_1300x1300/public/images/hh3-.png?itok=c8TlUHEH)

[![si-hh3](/sites/default/files/styles/thumbnail/public/images/APPLI-HM3-1_0.jpg?itok=h0v9r-4r)](https://www.kimo-instruments.com/sites/default/files/styles/max_1300x1300/public/images/APPLI-HM3-1_0.jpg?itok=0TG_5hQD)

[![si-hh3](/sites/default/files/styles/thumbnail/public/images/Si-HH3-2.jpg?itok=QrkgkOd4)](https://www.kimo-instruments.com/sites/default/files/styles/max_1300x1300/public/images/Si-HH3-2.jpg?itok=_bLtV93s)

 

 

 

 

The palm-sized Sauermann Si-HH3 thermo-hygrometer easily measures relative humidity and temperature.



 [  Technical Data sheet ](https://www.kimo-instruments.com/sites/default/files/files/DS_Si-HH3_15-07-26_EN_1.pdf) [  User manual ](https://www.kimo-instruments.com/sites/default/files/files/UM_Si-HH3_15-07-26_EN_1.pdf) [  Simplified manual ](https://www.kimo-instruments.com/sites/default/files/files/QSG_HVACR-Portable-instruments_01-07-26_4.pdf) 

 

       Backlit LCD screen 

 

       Calculated values on mobile App (free) 

 

       Magnetic backing for easy fixing 

 

       Carrying bag 

 

 

 

 


 Product info   #### Measure details

- Units
    
     
    
    °F, °C, % RH, °Ctw, °Ctd, °Ftd, °Ftw, g/m³, g/kg, kj/kg
 
 ![shadow](/themes/custom/kimo/images/divider-big.png) 

 

#### Measuring ranges

- Relative humidity
    
     
    
    0.00 % RH ... 100.00 % RH
- Dew point
    
     
    
    -40.00 °Ctd ... 60.00 °Ctd
- Absolute humidity
    
     
    
    0.00 g/m³ ... 600.00 g/m³
- Temperature
    
     
    
    -20.00 °C ... 60.00 °C
 
 ![shadow](/themes/custom/kimo/images/divider-big.png) 

 

 



 



 



 



 

 

#### Technical details

- Parameters
    
     
    
    Humidity
    
    Temperature
- Displays
    
     
    
    2-line display
- IP Protection
    
     
    
    IP 20
- Battery life
    
     
    
    250 hours
- Standards
    
     
    
    RoHS II 2011/65/EU (EU)2015/863
    
    UKCA
    
    2012/19/EU WEEE
    
    2014/53/UE RED
- Wireless connection
    
     
    
    1
- Power supply
    
     
    
    3 alkaline batteries LR03 AAA 1.5 V
- Probe type
    
     
    
    Built-in probe
- Protective cover
    
     
    
    No
- Interchangeable module
    
     
    
    No
 
 ![shadow](/themes/custom/kimo/images/divider-big.png) 

 

#### Instrument Dimensions

- Length
    
     
    
    2 3/4 inches
- Width
    
     
    
    1 5/16 inches
- Height
    
     
    
    8 31/32 inches
- Weight
    
     
    
    7 pounds
 
 ![shadow](/themes/custom/kimo/images/divider-big.png) 

 

#### Operating temperature

- Min
    
     
    
    -10.00 °C
- Max
    
     
    
    60.00 °C
 
 ![shadow](/themes/custom/kimo/images/divider-big.png) 

 

#### Storage temperature

- Min
    
     
    
    -20.00 °C
- Max
    
     
    
    70.00 °C
 
 ![shadow](/themes/custom/kimo/images/divider-big.png) 

 



 Supplied with   1 Certificate of conformity

1 Quick Start Guide

3 Alkaline batteries LR03 AAA 1.5 V

1 Carrying bag

 

 

 Software   [ ![Si-HVACR Measurement Mobile App](/sites/default/files/styles/small/public/images/Si-HVACR-VH3.jpg.webp?itok=TdPz12CK)

 Si-HVACR Measurement Mobile App](/en-US/measuring-instruments/portable-instruments/software/si-hvacr-measurement-mobile-app)

 

 

 Videos   [![](/sites/default/files/styles/video_ct_thumbnail/public/video_thumbnails/Rj03818VFCk.jpg.webp?itok=Mj7y_Tei)](/en-US/videos/full-overview-kimo-sauermanns-new-easy-use-hvacr-instrument-range)

       

##  [Full overview of KIMO & Sauermann’s new easy-to-use HVACR Instrument Range ](/en-US/videos/full-overview-kimo-sauermanns-new-easy-use-hvacr-instrument-range) 

 



 

 

 Downloads   #### Documents

 [    HVACR measuring instruments range](/sites/default/files/files/EN_Relecture_67874-SIHVACR_06-2025.pdf) 





 Compliance