Technical Specifications
| Use | Manhole Cover Alarm Sensor |
| Mounting Type | Manhole Cover |
| Features | Manhole Cover Alarm Sensor |
| Output | Data Transmission: LoRa, CLAA, NB-IoT, Zeta |
| Voltage Supply | 3.0 V to 3.6 V |
| Application | Manhole cover |
| Frequency | 470 MHz to 510 MHz |
| Transmission Power | 0 dBm to 20 dBm |
| Quiescent Current | 10 µA to 20 µA |
| Working Current | <30 µA (static) |
| Alarm Current | <100 mA |
| Measuring Range | 0° to 180° |
| Measuring Accuracy | ±1° |
| Battery | Lithium Battery |
| Battery Capacity | 4000 mAh (can be customized) |
| Battery Life | 3 year to 5 year (work normally and send less than 2 pieces of data a day) |
| Alarm Function | Angle, Movement |
| Network Frequency | 868 MHz |
| Stability | ±0.5% FS/Year |
| Transmission Distance | 0 ft to 32.8 ft (0 m to 10 m) |
| IP Rating | IP68 |
| Shell Material | ABS |
| Working Humidity | <90% |
| Relative Humidity | 0% to 95% |
| Ambient Temperature | -4 °F to 176 °F (-20 °C to 80 °C) |
| Size or Dimension | 3.58 in × 3.58 in × 0.98 in (9.1 cm × 9.1 cm × 2.5 cm) |
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