Si-RM350 manifold can be used to commission and service all types of refrigerant-based installations: heat pumps, air conditioning, refrigeration and reversible systems, from domestic systems to complex industrial machines.

Very easy to operate, this equipment features the latest technologies for fast, comprehensive system diagnostics. Its smart digital assistant guides the operator in every situation to help him achieve his objectives in the best possible way.

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 User manual Simplified manual
A1 / A2L / A2 / A3 refrigerants compatible
Durable anti-reflective glass screen
Safe and rugged for long data logging
High-speed NTC temperature sensors
User-friendly troubleshooting with diagnostics
New smart assistant app: Sauermann Pilot

Measure details

  • Units
    PSI, kPa, bar, MPa
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Measuring ranges

  • Pressure
    -1.00 bar ... 60.00 bar
  • Pressure
    -14.00 PSI ... 870.00 PSI
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Technical details

  • Parameters
    Pressure
  • Displays
    Graphical display
  • IP Protection
    IP 54
  • Battery life
    300 hours
  • Standards
    2015/863 EU (RoHS 3)
    2012/19/EU WEEE
    2014/53/EU RED
  • Wireless connection
    Yes
  • Power supply
    4 × LR6 or AA 1.5 V batteries. Alternative power supply: USB-C
  • Connections

    Pressure connectors: Si-RM350: 3x 1/4 MFL male
    Temperature connectors: 2x wired jack (NTC)
    Port: USB-C

  • Refrigerant database
    R11, R113, R114, R115, R1150, R116, R12, R123, R124, R125, R1270, R13, R134a, R13b1, R14, R141b, R142b, R143a, R152a, R161, R170, R218, R22, R227, R23, R236ea, R236fa, R245ca, R245fa, R290, R32, R600, R600a, R601, R601a, R718, R744, R744a, R50, R41, R1233zd(E), R1234yf, R1234zeE, R1234zeZ, R401A, R401B, R401C, R402A, R402B, R403A, R403B, R404A, R405A, R406A, R407A, R407B, R407C, R407D, R407E, R407F, R407H, R408A, R409A, R409B, R410A, R410B, R411A, R411B, R412A, R413A, R414A, R414B, R416A, R417A, R417B, R417C, R418A, R419A, R419B, R420A, R421A, R421B, R422A, R422B, R422C, R422D, R422E, R423A, R424A, R425A, R426A, R427A, R428A, R434A, R437A, R438A, R439A, R440A, R441A, R442A, R443A, R444A, R444B, R445A, R446A, R447A, R448A, R449A, R450A, R452A, R452B, R453A, R454A, R454B, R454C, R455A, R456A, R458A, R466A, R469A, R500, R501, R502, R503, R504, R507A, R508A, R508B, R509A, R511A, R513A
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Instrument Dimensions

  • Length
    6 13/32 inches
    162 mm
  • Width
    2 11/16 inches
    68 mm
  • Height
    6 19/32 inches
    168 mm
  • Weight
    2 5/32 pounds
    0.98 g
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Operating temperature

  • Min
    Max
  • -20.00 °C
    50.00 °C
  • -4.00 °F
    122.00 °F
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Storage temperature

  • Min
    Max
  • -20.00 °C
    50.00 °C
  • -4.00 °F
    122.00 °F
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Several kits: for more information, please refer to data sheet
1 Adjusting certificate
Supplied in hard plastic case
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