Similar to our AB-2R alarm box but with a stack light that indicates positive or “OK” status with a mini stack light.  The compact box is only 5×5 inches. LED stack light is 4.5″ tall.

HOW IT WORKS

You connect this box to any sensor with a contact close (or open) and when it changes state, an alarm is given:  the green light changes to flashing red, and a loud piezo-buzzer sounds.  Like the AB-2R the built-in 15A relay can control other devices through the piggyback cord.  

FEATURES

• Relay output 15A
• waterproof [IP65]
• 103dB buzzer.  
• Optional 110dB siren. (see video)

For further information and ordering please visit our AB-4 webpage