- Wireless connection, ultra-low power consumption, remote active wake-up, can use multiple accounts to synchronize online at the same time.
- Purpose: you can make video voice calls during a visit and receive short-term video recording; the host should not open the door to find out information about guests.
- Measurement scale: 50 to 18 m
- Error: five over a thousand
- Resolution: 0.01 m
- Maximum distance measured: 18 m
- The sum of the maximum distance: 180.00 m
- The largest counting area: 18 × 18 square meters
- The largest volume: 1800.0 cu. m
- Battery: 9V (not including battery)
- Starting frequency: 40 kHz
- Accuracy: plus or minus 0.5%
- Material: ABS plastic
Packaging & Delivery:
- Single package size: 15.5X6.3X4.7 cm
- Single gross weight:0.2 kg
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