1. Operating Voltage: AC 220V.

2. Working current: 10A ~60A.

3. Connect with the fire control center, all smoke exhaust windows open automatically when receiving a signal.

4. Connect with the building fire control center, and feedback the signal to the fire control center.

5. Connect the fire emergency button.

6. The alarm bell rings automatically when a signal is received.

7. You can manually control the opening, closing, and stopping of smoke exhaust windows

8. Use with electric chain window opener, linear actuator window opener, and electric curved-arm window opener.

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