The GM50 Gas Monitor is a compact, high-performance gas detection solution designed to provide early warning of unsafe oxygen or carbon dioxide levels in indoor environments. With a clear colour-coded display, integrated audible alarm, and flexible output options, the GM50 delivers reliable protection for most applications.
| TECHNICAL SPECIFICATION | |||
|---|---|---|---|
| GENERAL | USER INTERFACE | ||
| Model | GM50 | Display | 1.8” TFT |
| Target Gases | Oxygen (O₂) / Carbon Dioxide (CO₂) | Screen Brightness | Non-adjustable |
| Size (H x W x D) | 5.95 x 4.37 x 1.97” (151 x 111 x 50mm) | Visual Indicators | Gas level – Green: Normal / Yellow: Pre-Alarm / Red: Alarm |
| Housing Material | ABS PA765, Flame Retardant UL94 V-1 | Audible Alarm | >80dB @ 1m (3.28ft), quiet conditions |
| Mounting | Safe Zone – Indoor use – Wall Mounted | Language | English |
| Weight | 212g | ||
| POWER SUPPLY | RELAYS | ||
| Rated Power | 3.5W @ 18–60VDC 9VA @ 230VAC 13VA @ 24VAC |
Fire Alarm Relay | 1A |
| Rated Voltage | 90–250VAC / 18–60VDC or 24VAC | Pre-Alarm & Alarm Relays | Volt-free outputs, 10A switching current (resistive load) |
| ENVIRONMENTAL | WIRING | ||
| Operating Conditions | -10 ~ 40°C (14 ~ 104°F) / 20 ~ 90% RH (non-condensing) | Typical Wiring | Power wiring to applicable codes |
| Storage Conditions | -10 ~ 40°C (14 ~ 104°F) / 20 ~ 90% RH (no condensation) | Wire Sizes | 120VAC & alarm relays: 14–16AWG 24VDC: 16–18AWG |
| Altitude Rating | 2000m | ||
| APPROVALS | |||
| Electrical Safety & EMC | CE / UKCA, BS EN 61010-1:2010 +A1:2019, BS EN 50270, FCC CFR 47 Part 15B | ||
| SENSOR SPECIFICATION | |||
| Gas | Sensor Type | Measuring Range | Response / Alarms / EOL |
| Carbon Dioxide (CO₂) | Photoacoustic NDIR | 0–4 % Vol | <60s response / Pre-Alarm: 0.5% / Alarm: 3% / EOL: 10 years |
| Oxygen (O₂) | Electrochemical | 0–25 % Vol | <60s response / Alarm: 19.5%, 18% & 23% |
