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NB-IOT, LORAWAN Warehouse Door Magnetic Detection Alarm: two parts: a magnetic component and an NB-IoT transmitter. The magnetic component and the NB-IoT transmitter are installed on both sides of the door and window respectively. When there is a ...

NB-IOT, LORAWAN Wireless Water Immersion Sensor: NB-IOT, LORAWAN wireless water immersion sensor consists of two parts: data acquisition box and water immersion sensor. The water immersion sensor uses the principle of liquid conductivity and adopts ...

LORA One-touch Emergency Call Alarm Button for Elderly and Children: Two-way communication, easy to use Power monitoring, low voltage prompt Product parametersWorking voltage: DC3.7VStandby power consumption: less than 5uAAlarm current: less than 100mAWireless ...

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NB-IOT, LORAWAN Warehouse Door Magnetic Detection Alarm