The ANWETECH AT-GD209 is a configurable multi-sensor detector designed for early warning of lithium-ion battery thermal runaway and emergency alarm during developing fire conditions.
Depending on the ordered configuration, the detector can monitor CO, H₂, VOC, smoke and temperature inside a lithium-ion battery enclosure. It supports CAN and RS485 communication, dry-contact feedback/input, and a 24 VDC active output for configured alarm actions.
Lithium-ion battery abnormal conditions can generate characteristic gases, smoke, temperature changes and other warning signals before an open-flame fire develops.
The AT-GD209 monitors the configured parameters inside the protected battery enclosure and uses multi-sensor data to classify developing conditions into warning and alarm stages. According to the selected sensor configuration, the detector supports up to four internal alarm levels.
The detector can operate as part of a battery monitoring architecture using CAN communication to a BMS, or it can communicate with a compatible controller through CAN or RS485. Where a traditional fire alarm control panel is involved, interface compatibility must be checked and an appropriate interface, relay or monitor module may be required.
AT-GD209 is a configurable platform. The actual sensor combination, alarm thresholds, alarm levels, communication mode and terminal assignments must follow the ordered configuration supplied with the unit.
| Parameter | Specification |
|---|---|
| Model | AT-GD209 |
| Product Type | Lithium-Ion Battery Multi-Sensor Thermal Runaway Detector |
| Operating Voltage | DC 9–30 V |
| Device Power | < 5 W |
| Operating Temperature | -40°C to +125°C |
| Operating Humidity | < 95% RH |
| Storage Temperature | -40°C to +125°C |
| Atmospheric Pressure | 550–1060 hPa |
| Supported Detection Types | CO, H₂, VOC, Smoke, Temperature; configurable |
| Temperature Measurement Range | -40°C to +125°C |
| CO Measurement Range | 0–1000 ppm |
| H₂ Measurement Range | 0–1000 ppm |
| VOC Alarm Levels | Up to 3 levels |
| Smoke Alarm Threshold | 1.0 dB/m, adjustable |
| Protected Space | 1 m³ |
| Communication | CAN / RS485 |
| Signal / I/O | Dry-contact input / 24 VDC active output |
| Alarm Level Setting | Up to 4 levels, depending on sensor configuration |
| 24 VDC Output Mode | Continuous while active; removed after reset |
| Maximum Active Output Current | 2 A |
| Terminal Block | 3.81 mm pluggable terminal block |
| Explosion Protection Marking Stated in Source | Ex ib IIC T6 Gb |
Based on the confirmed manual, AT-GD209 is suitable for integration into:
