The NV7608 alarm box is a 8 channel alarm inputs, 8 channel controllable normally open relay outputs alarm box, connected with digital video recorder to conduct single or full arm, disarm, enquiry and switch controlling function.

The NV7616 alarm box is a 16 channel alarm inputs, 8-channel controllable normally open relay outputs alarm box, connected with digital video recorder to conduct single or full arming, disarming, enquiry and switch controlling function.

8-channel alarm inputs, 4-channel relay outputs.
With a RS232/RS485 bi-directional converter, static resistance and thunder proof design.
Watchdog function, auto-reset after power failure.

16 channel alarm controller, can connect 16 channel probe,16 channel alarm output , RS-485 Communication mode