Sensors Technology Development issues

What is the difference between CBU-NL module and CBU module?

How long does the PIR motion sensor need to trigger a high level?

How does the Bluetooth door sensor detect offline status?

How much power does the Bluetooth door sensor consume?

What is the low power consumption logic of the Bluetooth door sensor?

What is the voltage when the Bluetooth door sensor's battery level is displayed as 50%?

When the voltage of the Bluetooth door sensor is below how many volts, the message transmission and reception become unreliable?

What does the panel display when the Bluetooth door sensor is powered with a voltage of 2.5V?

The flood sensor is always in alarm state, but there is no alarm record and push notification. Why?

Is it normal for Zigbee door locks to delay data delivery?