Sona Chron Bell Ringer comes with a 6" 24 vac bell

(click to enlarge)

Sonachron The Sonachron Program Timer from Lathem is ideal for schools and industry.

The Sonachron is a dual-purpose, single circuit program timer, ideal for signaling horns and bells or for controlling the On/Off status of electrical devices such as HVAC or appliances.

The Sonachron is user-friendly, with a front-mounted keypad that lets you program the exact minute and weekday(s) of each event.

Sonachron Features

* An optional dip switch can be set for operating the unit as a control device. As a control device, the relay latches On or Off according to your schedule. * A keypad allows easy programming and changes to schedule for operating the internal 10-amp dry contact relay. * The weekly schedule can have up to 1,440 events. Each event includes the day(s) of the week and the time. * Signal duration can be set from 1 to 99 seconds. * If desired, a 4-digit security code entry can be required by keypad for preventing unauthorized tampering. * An internal battery retains memory and timekeeping during power failures lasting up to 7 days. * The Sonachron can be connected to an Omni:Chron time recorder in order to synchronized the bells to the Omni:Chron.