The RFG 651, 652 and 653 are modular gas detectors that take one, two or three remote sensors. It provides selective detection of methane, propane/LPG, or carbon monoxide, with adjustable alarm thresholds and relay outputs for safety intervention.
The Coster RFG 65 series are DIN rail gas detectors for remote sensors: the RFG 651 takes one sensor, the RFG 652 two and the RFG 653 three. Coster lists them for boiler rooms, laboratories, workshops and garages, with relay outputs to close a gas valve, start a fan or raise a remote alarm. We supply, install, commission and service them with Coster SRS sensors and GCA valves.
| Models | RFG 651: 1 sensor; RFG 652: 2 sensors; RFG 653: 3 sensors |
|---|---|
| Gases | Methane, propane/LPG or carbon monoxide, depending on the sensor fitted |
| Sensors | Coster SRS 150 (methane), SRS 250 (LPG), SRS 350 (CO) |
| Outputs | Valve control relay and external alarm relay, changeover, 250V AC, 5(1)A |
| Power | 230V AC or 12V DC, 7 VA |
| Mounting and protection | DIN rail, IP40 |
| Sensor standards | CEI EN 50194, EN 50244 (methane, LPG); EN 50291, EN 50292 (CO) |
We supply, install, commission and service this equipment across Ireland. Call 01 289 7720 or email info@vistec.ie for advice or a quote.
© 2026 Vistec Gas Detection Ltd
Descriptions
