The GS100M is a compact, single-channel gas detection controller for toxic or explosive gases. It is wall or panel mountable, works with Duomo’s full sensor range, and provides multiple alarm stages with fail-safe shutoff functionality.
The Duomo GS100M is a single channel controller that takes one Duomo sensor, for carbon monoxide, natural gas or LPG. On main alarm it breaks the supply to the safety shut-off valve, and it also closes the valve if the controller goes into fault. For up to three sensors, Duomo makes the GS300Mc, and we supply, install, commission and service both.
| Channels | 1 remote sensor (for 1 to 3 sensors see the GS300Mc) |
|---|---|
| Gases | Toxic 0 to 300 ppm or explosive 0 to 20% LEL, using any Duomo sensor |
| Alarms | Pre-alarm 1 at 8% LEL / 120 ppm; pre-alarm 2 at 13% LEL / 200 ppm; main alarm at 20% LEL / 300 ppm |
| Input | 4 to 20mA, sensor up to 100 m on 1 mm2 screened cable |
| Outputs | Pre-alarm and main alarm relays, 10A resistive; valve supply broken on main alarm or fault |
| Power | 230V AC; optional 12V DC 2.2Ah standby battery |
| Protection and size | IP44, 144 x 144 x 110 mm, wall or panel mounted |
| Approvals | EN 61010-1, EN 50270, EN 50271, EN 45544-3, EN 60079-29-1 |
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
