Manual Point Security Alarm Button "Astra-321M" for Effective Emergency Alerts

Safety detector manual point electric contact detector "Astra-321M" - is an alarm button designed to activate the alarm signal by pressing the button and the issuance of an alarm notification to the receiving and control device or the system of notification transmission. Locking when pressed, unlocking by the built-in pusher on the end of the detector, connection terminals for opening / closing the loop.