I check the received model

There is a whole lot of reference, the model I received is well stamped ZG-102ZL.

The version I received incorporates a brightness sensor.

Where to buy this equipment?

On the date of writing of this Retex:

• not yet found on Amazon
• within 12€ on Ali Express, I do not advise any seller because this multitude of references freaks out

I integrate this box with Zigbee2MQTT

I switch Zigbee2MQTT to pairing mode. 

I remove the tongue from the stack, the first integration is in failure.

I delete the detected device, restart the integration by pressing the reset button with the provided tool for a few seconds until the LED flashes.

 

The pairing starts…

The Open/Closed contact is well-functioning.

The value of the brightness detector also seems functional.

Clearly the information on the batteries goes up.

I'm going to Home Assistant.

I can find my equipment there

It is perfectly integrated! And in addition, under its real reference: ZG-102ZL, perfect!