Drawing Intelligent pressure monitor

SPG 501_001

item number :
Smart Pressure Gate (SPG 501_001)


SPG 501_001 - Standard

  • Measurement range, Accuracy:
    • LP: -1...19 bar / -14...+275 psi
    • HP: 0...50 bar / 0...275 psi
    • Accuracy: 0,5% FS
  • Process connection: G1/4 (welded)
  • replaces HP and LP refrigeration pressure gauges
  • replaces one double pressure switch*
  • replaces 2 single HP pressure switches (2 fans in On/Off function)
  • Modbus RS485 connection
  • suitable for the following refrigerants: R134a, R404a, R407c, R22, R407f, R410a, R448, R449 und R507.
  • Other refrigerants are available on request.

*This is not a safety device. The system must absolutely be equipped additionally with a mechanical safety pressure switch.


For each SPG versions wall mounting options and screws are available.

More informations via E-Mail: mrt-info@lr-germany.de