Programmable Bell Timer
The Automatic Bell Timer Unit is a fully programmable 7 day time switch that can be linked to any 230v AC sounders for bell ringing or siren sounding applications including, factory break time signalling, school class change bells with manual school lock down switch.
Simple installation and setup.
Programmable Bell Timer with Lockable Keypad
Danfoss Randall 841 automatic break time sounder controller capable of up to 200 sounder times over a 7 day period. The ESU time controller produces either pulsed and continuous 230v AC output for bell ringing or siren sounding applications.
Two Zone Programmable Bell Timer
Danfoss Randall 842 two channel electronic signal unit..
Ideal for multi zone sounder applications e.g. bell in the office and siren in the factory, both zones can be programmed independently.