The Sensistor XRS9012 is a portable hydrogen leak detector that uses forming gas (5% hydrogen and 95% nitrogen) as the tracer gas. It senses down to 0.7 ppm hydrogen in air and locates leaks quickly with 10 sensitivity levels and LED guidance, and its waterproof aluminum casing (IP55) suits field use.
| Tracer Gas | Forming gas (5% hydrogen and 95% nitrogen) |
| Detection Method | Sensistor hydrogen gas sensor (diffusion-based, highly sensitive and selective); sensor located at the probe tip |
| Sensitivity | 0.7 ppm H₂ in air |
| Response Time | Less than 1 sec |
| Warm-up Time | Less than 10 sec |
| Sensitivity Adjustment | Up to 10 sensitivity levels |
| Outputs | 10-LED bar graph indicator / earphone, standard 3.5 mm (1/8 in.) jack, >8 ohms |
| Battery Type | Rechargeable lead batteries (gel electrolyte) |
| Battery Capacity | 13 hours at 20 °C (68 °F), 6 hours at -20 °C (-4 °F) |
| Chargers | AC charger 100-240 V (ac) / car charger 9-15 V (dc) |
| Casing / Protection | Aluminum / waterproof (IP55) |
| Dimensions | 250 × 120 × 85 mm (9.85 × 4.75 × 3.35 in.) / in carrying case 260 × 220 × 95 mm (10.25 × 8.70 × 3.75 in.) |
| Weight | 1.9 kg (4.2 lb.) / in carrying case 2.5 kg (5.5 lb.) |
| Ambient Temperature Range | -20 to 50 °C (-4 to 122 °F) |
| Maintenance | Maintenance-free; no moving parts |
| Scope of Supply | Includes nylon case, H21 hand probe, 3 m (9.8 ft.) cable, waist belt, shoulder strap, earphones, 110-230 volt charger and car charger |
| Optional Accessories | C21 probe cable (3 m / 6 m / 9 m), P12 hand probe extension |
| Applications | Locating leaks in pressurized telephone cables, gas-filled power cables, water and gas pipes and heating systems |