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  • Usually ships in 14-16 weeks



  • Detectable gases: R-410a, R-407c, R-404a, R-32
  • Measuring ranges: 2,500 ppm, 5,000 ppm, 10,000 ppm
  • Housing Flush mount ABS housing, IP40, NEMA 1 rated, fits in most 2-gang electrical back-boxes
  • Unique plug-in field replaceable pre-calibrated sensor
  • Tri-color LED: green, amber, red
  • Self-diagnostics and simple field calibration
  • Two relays and Modbus Communications
  • Alarm options including: LED, buzzer, two levels, configurable delay and fail-safe
  • CE, UL/CSA/IEC/EN 61010-1 approved


The Bacharach MVR-300 detector is specifically designed to provide continuous monitoring for refrigerants associated with high-efficiency, high volume refrigerant cooling and heating systems, such as VRF/VRV (Variable Refrigerant Flow/Variable Refrigerant Volume) systems. Typical applications include hotels, dormitories, hospitals, office buildings, and apartment buildings.

The MVR-300 detects R-410a, R-407c, R-404a, and R-32 refrigerants over ranges of 2,500 ppm, 5,000 ppm, or 10,000 ppm. Audible and visual alarms alert occupants and simultaneously communicate to Building Management Systems/Building Automation Systems (BMS/BAS). Two on-board relays can be used to close valves, activate alarm devices and exhaust fans or initiate emergency calls to rescue teams.

The on-board Modbus RTU interface provides real-time information about refrigerant concentrations, status and settings. It also enables custom configuration of the MVR-300 to any application specific requirements using multiple Modbus registers.

The Bacharach MVR-300 is designed for easy installation and simple maintenance.


This product can be used in the following applications: