1. Open ional device of automatic door operator.
2. While people pass in/out, it will be sending out "DING DONG" sound.
1. Detection method: infrared rays. 2. Power: 80V~250V. 3. Power consumption: 4W (max.). 4. Environment temperature : -20℃ to +50℃. 5. Volume: 0.4 kg. 6. Weight: L:19.4, W: 4, H:3 (cm).