Exit Alarm and Door Knob Alarm

Exit Alarm is easy to install,maybe mounted on top, right left or next to almost any door ,it less expensive than heavy horizontal bar type units and practical for all emergency doors .User can select onside whether to use an alarm or annunciator . It helps prevent both unauthorized exits and entries through emergency exit doors
Door Knob Alarm has two sensitivity levels ,the product option is can self adjusting sensitivity with manual high and low ,Alarm Chime will sounds when magnetic contact is separated.And the product can alarm with U1 loud 100dB 。Additional，the product's handle can collapsible .