Functional Features：

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1. Easy installation method;

2. Used in conjunction with the fire door monitoring module to monitor the status of the fire door;

3. Installation method: Installed at the junction of the door frame and door leaf.

Usage environment：

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Temperature: -10 ℃~50 ℃

Relative humidity: ≤ 95% RH (40 ℃± 2 ℃)