Bacharach MVR-300 Refrigerant Leak Detector, R-404A, 2500ppm

  • Bacharach MVR-300 Refrigerant Leak Detector, R-404A, 2500ppm
  • Bacharach MVR-300 Refrigerant Leak Detector, R-404A, 2500ppm
  • Bacharach MVR-300 Refrigerant Leak Detector, R-404A, 2500ppm
  • Bacharach MVR-300 Refrigerant Leak Detector, R-404A, 2500ppm
MSRP: $427.00
Price: $384.30
— You save $42.70


Bacharach MVR-300 Refrigerant Leak Detector, R-404A, 2500ppm

Refrigerant Detector for VRF Systems in Occupied Spaces

  • Fits in standard electrical boxes for easy installation
  • Low profile / flush mount for aesthetically non-intrusive appearance
  • Two relays and Modbus Communications for notifying building management & initiate counter measures
  • Alarm options (LED, buzzer, two levels, configurable delay and fail-safe) to alert occupants and remotely inform building management of alarm location for rapid response as required
  • Refrigerant specific sensors for enhanced safety
  • Self diagnostics and simple field calibration for easy maintenance
  • Unique plug-in field replaceable pre-calibrated sensor for low cost of ownership

The 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 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 concentrations, status and settings. It also enables custom configuration of the MVR-300 to any application specific requirements using multiple Modbus registers.

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

IMPORTANT NOTE: Large refrigerant leaks into occupied spaces can reach concentrations that pose a suffocation risk to the occupants. The MVR-300 is not designed to be used as the sole safety device for this risk. Safety of the occupants also must take a system designed approach that includes things such as ventilation, detection, early warning, mitigation and design redundancy.


Detectable Gases R-404A
Measuring Ranges 2,500 ppm
Housing Flush mount, white ABS, fits in most 2-gang electrical back-boxes
Size (L x W x D, approx.) 6" x 4.1" x 1.75" (150 x 105 x 45 mm) including bezel
Protection Indoor: IP40, NEMA 1
Weight (approx.) 8 oz (230 g)
Power 100 to 240 VAC, 50/60 Hz, 4 W max.
Indicator Tri-color LED: green, amber, red
Buzzer 80 dB at 12" (30 cm)
Relay Two SPDT: low alarm and high alarm / fault, normal or fail-safe; configurable
Alarm Delay 0 to 15 minutes; configurable 0, 5, 10, 15
Wiring Power: 3-core cable, 14 to 20 AWG (0.5 to 2.0 mm2)
Relay: 3-core cable, 18 to 20 AWG (0.5 to 1.0 mm2)
Modbus: 2-core twisted pair shielded cable 18 to 24 AWG
Modbus RTU Baud Rage: 9,600 or 19,200; configurable
Environmental Conditions Operating Temperature: 32 to 120°F (0 to 50°C)
Storage Temperature: 5 to 100°F (-20 to 40°C)
Humidity: 5 to 90% RH, non-condensing
Pressure: 23.6 to 32.5 inch of Hg (800 to 1,100 hPa)
Elevation 0 to 6,560 ft. (2,000 m) altitude
Sensor life 2 year minimum life with recommended 6 month testing and/or recalibration
Approvals CE, UL/CSA/IEC/EN 61010-1


  • (1) Bacharach MVR-300 Refrigerant Leak Detector, R-404A, 2500ppm


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