[![wireless_pressure_probe_manifold](/sites/default/files/styles/product_image/public/images/IMA_28144_Si-RP4_A2L-A3_Front_1.png?itok=gKZF1vjV)](https://www.kimo-instruments.com/sites/default/files/styles/max_1300x1300/public/images/IMA_28144_Si-RP4_A2L-A3_Front_1.png?itok=FQuJN-IN)

[![wireless_pressure_probe_manifold](/sites/default/files/styles/thumbnail/public/images/IMA_28144_Si-RP4_Front_web%202.png?itok=9oP51DR8)](https://www.kimo-instruments.com/sites/default/files/styles/max_1300x1300/public/images/IMA_28144_Si-RP4_Front_web%202.png?itok=l4JLdkwk)

[![wireless_pressure_probe_manifold](/sites/default/files/styles/thumbnail/public/images/IMA_28144_Si-RP4_Profile_web.png?itok=CBkNlOWh)](https://www.kimo-instruments.com/sites/default/files/styles/max_1300x1300/public/images/IMA_28144_Si-RP4_Profile_web.png?itok=c3vK0JNI)

[![wireless_pressure_probe_manifold](/sites/default/files/styles/thumbnail/public/images/IMA_28144_Si-RP4_Right_web_0.png?itok=qBuqopOz)](https://www.kimo-instruments.com/sites/default/files/styles/max_1300x1300/public/images/IMA_28144_Si-RP4_Right_web_0.png?itok=89yLMd5y)

[![A2L A3 compatible](/sites/default/files/styles/thumbnail/public/images/WEB_A2L-A3_4.png?itok=0GRJf-t9)](https://www.kimo-instruments.com/sites/default/files/styles/max_1300x1300/public/images/WEB_A2L-A3_4.png?itok=fl15mh87)

 

 

 

 Ref: Si-RP4

  

 

This wireless pressure probe provides accurate high and low-pressure measurements for air conditioning, refrigeration and heat pump installations.  
  
The Si-RP4 allows all types of refrigerant-based installations to be serviced quickly and safely. It connects easily to the [mobile application Sauermann Pilot](https://sauermanngroup.com/en-US/node/39599) via a low-power wireless communication protocol.

##### A1 / A2L / A2 / A3 refrigerants compatible  
Compatible with some B1 refrigerants, see list of refrigerants for details on which refrigerants are compatible. The device must not be used with ammoniac refrigerant (NH3 / R717).



 [  Technical Data sheet ](https://www.kimo-instruments.com/sites/default/files/files/DS_Si-RP4_EN_26-11-24_2.pdf) [  Simplified manual ](https://www.kimo-instruments.com/sites/default/files/files/QSG_RP4-RV4-Si-RT2-Si-RT5-Si-RT7-Si-TH4_22-09-25_4.pdf) 

 

       A1, A2L, A2 and A3 refrigerants compatible 

 

       Light and curved design for easy plug-in 

 

       Quick & Strong wireless auto connection (100 m/328 ft range) 

 

       Real time readings through direct connection to mobile app 

 

       IP54 dust & rain proof probe 

 

 

 

 


 Product info   #### Measure details

- Units
    
     
    
    bar, MPa, kPa, psi
 
 ![shadow](/themes/custom/kimo/images/divider-big.png) 

 

#### Measuring ranges

- Pressure
    
     
    
    -1.00 bar ... 60.00 bar
- Pressure
    
     
    
    -14.00 PSI ... 870.00 PSI
 
 ![shadow](/themes/custom/kimo/images/divider-big.png) 

 

 



 

 

#### Technical details

- Parameters
    
     
    
    Pressure
- IP Protection
    
     
    
    IP 54
- Battery life
    
     
    
    150 hours
- Standards
    
     
    
    2011/65/EU RoHS II
    
    2012/19/EU WEEE
    
    2014/53/UE RED
- Wireless connection
    
     
    
    Yes
- Power supply
    
     
    
    3x LR03 AAA 1.5 V alkaline batteries
- Connections
    
     
    
    1x 1/4 FFL female
- Refrigerant database 
    
     
    
    A1, A2L, A2 and A3 refrigerants compatible
 
 ![shadow](/themes/custom/kimo/images/divider-big.png) 

 

#### Instrument Dimensions

- Length 
    
     
    
     Width 
    
     
    
     Height 
    
     
    
     Weight
- 7 inches 
    
     
    
     1 1/2 inches 
    
     
    
     1 13/16 inches 
    
     
    
     7/16 pounds
 
 ![shadow](/themes/custom/kimo/images/divider-big.png) 

 

#### Operating temperature

- Min 
    
     
    
     Max
- -20.00 °C 
    
     
    
     50.00 °C
- -4.00 °F 
    
     
    
     122.00 °F
 
 ![shadow](/themes/custom/kimo/images/divider-big.png) 

 

#### Storage temperature

- Min 
    
     
    
     Max
- -20.00 °C 
    
     
    
     50.00 °C
- -4.00 °F 
    
     
    
     122.00 °F
 
 ![shadow](/themes/custom/kimo/images/divider-big.png) 

 



 Supplied with   1 Adjustment certificate

3 AAA batteries

 

 

 Downloads   #### Documents

[    Manifolds](/sites/default/files/files/DOC_EN-US_Manifold-2025_V1-20250520_Web.pdf)

 





 Software   [ ![Sauermann_pilot_mobile_app_ios_android](/sites/default/files/styles/small/public/images/IMA_MOBILE-APP_%20iPhone%2015_web_0.png.webp?itok=FScfWI2D)

 Sauermann Pilot](/en-US/measuring-instruments/digital-refrigeration-gauges/software/sauermann-pilot)

 

 

 Videos   [![](/sites/default/files/styles/video_ct_thumbnail/public/video_thumbnails/tZYCSUP6pLU.jpg.webp?itok=MHv6RAZn)](/en-US/videos/si-rm350-si-rm450-manifolds-range)

       

##  [Si-RM350 & Si-RM450 Manifolds Range](/en-US/videos/si-rm350-si-rm450-manifolds-range) 

 



 

 

 Compliance