TGR Series
TGR Sensor/Controller | A2L Refrigerant + CO Detection
Higher Reliability, Faster Installation, Superior Accuracy | Sense the Difference
Fits standard 1-gang j-box & Configure powerlessly with the SenvaSync app. Modern, low-profile, tamper-proof enclosure - great for schools and high-traffic areas Magnetic calibration adaptor for fast, tool-free field calibration Made in the USA - 7 year warranty on electronics, buy American Act certified
UL2075 CO/NO2 elements, combustibles, and most A2L & A3 gases
SenvaSync App for easy settings configuration
Factory-calibrated and certified sensing elements
BACnet MS/TP protocol or analog outputs
- NEW! Use the SenvaSync app without powering the device to pre-configure settings
- No DIP switches, no magnetic wand, no laptop
- Factory-calibrated and certified single or dual sensors on each unit
- UL2075 listed CO sensing element meets code requirements for commercial CO detection in schools, offices, and commercial buildings
- A2L ready! Pre-calibrated for R-32, R-454A, R-454B, R-454C, R-452B, R455A, R-22, R-404A, R-407C, R134A, and more
- Fits a standard j-box
- Built-in BACnet MS/TP or dual daisy-chainable analog outputs (0–10V, 0–5V, or 4–20 mA)
- Two independent, configurable relays
- Tamper resistant enclosure, great for schools and high-traffic areas
- 7-year limited warranty on electronics; 2-year warranty on sensor elements
Description
The TGR is a recessed dual-gas sensor/controller built for the two most common gas compliance scenarios in commercial buildings: CO safety monitoring in spaces served by gas-fired RTUs (required by ASHRAE 62.1, IMC, and many state codes) and A2L and legacy refrigerant leak detection in VRF-served occupied spaces per ASHRAE 15 and the 2024 IMC. The SenvaSync app allows for consistent setup, even without power! Dual daisy-chainable 0–10V, 0–5V, or 4–20 mA outputs enable cost-effective coverage of large areas without additional controllers, or choose RS485 for BACnet MS/TP and Modbus RTU protocols. All models feature two independently configurable relays, an 85 dB audible alarm, tri-color LED status indication, and field-replaceable, factory-calibrated and certified sensing elements for quick, documented commissioning.
Applications
- A2L and legacy refrigerant leak detection in VRF/VRV-served occupied spaces
- Hotels, multi-family, dormitories, and office buildings
- ASHRAE 15 and 2024 IMC compliance
- CO safety monitoring in schools, gyms, and commercial buildings with gas-fired RTUs
- IMC, and state CO detection compliance
- CO + NO₂ monitoring in enclosed parking garages
- IMC Section 404.1 compliance with UL2075 recognized components
- Alert occupants of elevated gas levels
- Directly VFD or exhaust fan control
All prices shown are excluding tax unless otherwise specified.