GMI (UK)
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| Brand | GMI (UK) |
|---|---|
| Origin | United Kingdom |
| Model | PS1 |
| Gas Detection | O₂ (0–25% vol, 0.1% res), H₂S (0–100 ppm, 1 ppm res), CO (0–500 ppm, 1 ppm res), SO₂ (0–20 ppm, 0.1 ppm res) |
| Display | Backlit LCD |
| Protection Rating | IP67 |
| Operating Temperature | −20 °C to +50 °C |
| Relative Humidity | 0–95% RH (non-condensing) |
| Dimensions | 85 × 55 × 29 mm |
| Weight | 86 g |
| Power | 3.6 V lithium-thionyl chloride battery |
| Alarm Types | Visual (360° high-brightness LED), Audible (95 dB), Vibration |
| Certifications | IECEx Ex ia IIC T4 Ga, ATEX Ex II 1G Ex ia IIC T4 Ga, UL913 Class I Div 1 Groups A–D T4, CE, MED 96/98/EC, CSA Class I Div 1 Groups A–D T4 (pending) |
| Brand | GMI (UK) |
|---|---|
| Origin | United Kingdom |
| Model | T.ex-O2 |
| Detection Principle | Electrochemical Sensor |
| Gas Measured | O₂ |
| Range | 0–25% vol |
| Resolution | 0.1% vol |
| Operating Temperature | −20 °C to +50 °C |
| Relative Humidity | 0–95% RH (non-condensing) |
| Display | Backlit high-contrast LCD (analog bar + digital readout) |
| Audible Alarm | 95 dB at 10 cm, 85 dB at 30 cm |
| Visual Alarm | Dual LED flash indicators |
| Vibration Alert | Integrated haptic feedback |
| Enclosure Material | Impact-resistant polypropylene |
| Ingress Protection | IP67 |
| Certifications | ATEX II 1 G Ex ia IIC T4, UL 913 Class I, Div 1, Groups A/B/C/D, MED |
| Battery | Rechargeable Li-ion, 3-year typical service life |
| Dimensions | 85 × 55 × 29 mm |
| Weight | 81 g (O₂ configuration) |
| Data Logging | Standard internal memory with timestamped records |
| Connectivity | USB interface for data download and calibration verification |
| Alarm Modes | STEL (Short-Term Exposure Limit), TWA (Time-Weighted Average), Peak, Lockable Alarm |
| Pump | Integrated micro-diaphragm sampling pump |
| Self-Test | Power-on diagnostic sequence with sensor and circuit validation |
| Mounting | Clip-on design for collar or vest placement near breathing zone |