| Technical Details | |
| Communication | ZigBee |
| Working Voltage | DC 3V (CR2032 battery) |
| Working Temperature | -10℃ to +55℃ |
| Low Battery Indication | Yes |
| Alarm Triggering Distance | 23 ± 5 mm |
| Battery Life | More than one year (20 times per day) |
| Dimensions | Main Body: 52.6 x 26.5 x 13.8 mm
Magnet: 25.5 x 12.5 x 13 mm |
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Datasheet 904M-S3.pdfDownload
