GD-20
Fixed pointFixed THC point detector
Continuous monitoring at a fixed measuring point, with local display and relay outputs.
03 · Product line
Gas Detectors
Fixed and portable detection of total hydrocarbons for safety and process monitoring — clear alarm behaviour, robust housings, straightforward integration.
Product photography for this line is in preparation.
Models
Point detection, multi-channel systems, portable checks.
GD-40
Multi-channel monitoring system
Central controller for site-wide coverage — one panel for all measuring points.
GD-P
Portable detector for spot checks
Handheld leak search and spot measurement with data logging for reports.
Full specifications
All three models side by side
| Specification | GD-20 | GD-40 | GD-P |
|---|---|---|---|
| Detection | |||
| Principle | Catalytic bead | Per sensor: catalytic, IR, PID | PID |
| Target gases | THC | Configurable per channel | VOC, THC |
| Measuring range | 0–100 % LEL | Per channel | 0–2000 ppm |
| Resolution | 1 % LEL | Per channel | 0.1 ppm |
| Response t90 | < 10 s | < 10 s | < 5 s |
| Accuracy | ± 3 % LEL | Per channel | ± 5 % of reading |
| System | |||
| Channels | 1 | Up to 8 sensors | 1 (handheld) |
| Alarms | 2-stage + relay | 2-stage per channel | Visual, acoustic, vibration |
| Outputs | 4–20 mA, 2 relays | 8 relays, Modbus RTU | USB, Bluetooth |
| Display | LED bargraph | 5" colour touch | Backlit LCD |
| Data logging | — | 12 months, event log | 100 h at 1 s |
| Physical & approvals | |||
| Power | 24 V DC | 100–240 V AC | Li-ion, 12 h runtime |
| Mounting | Wall / pipe | Wall / panel | Handheld |
| Dimensions (W × D × H) | 18 × 12 × 9 cm | 32 × 24 × 12 cm | 14 × 7 × 4 cm |
| Weight | 1.6 kg | 3.4 kg | 380 g |
| Protection | IP66 | IP65 | IP65 |
| Ambient temperature | −20 to +55 °C | −10 to +50 °C | −20 to +50 °C |
| Approvals | CE, ATEX II 2G | CE | CE, ATEX II 2G |
| Sensor life | 3 years | Per sensor type | 2 years (lamp) |
Specifications are preliminary and confirmed per configuration in your offer.
Typical applications
Documentation
Datasheets and manuals for the GD series are available in the downloads centre, in English and German.
Go to downloads →Planning detection coverage for a site?
Send us your layout and measuring points — we'll propose sensors, controller and alarm logic.