The Grasslin mechanical Timer is an accurate and reliable segmental mechanical timer. If your whole systems functionality is relying on a single timer you can do no better than Grasslin. The timer provides 24 hour control with 15 minute switching. Simply push the ‘tappets’ out for ‘ON’ and leave them in for ‘OFF’. Then set the current time, the timer will cycle through your desired ON OFF times. The timer also features a manual override.
Must be used with a contactor/relay if used to time HID lighting.

Caution:

Do not use to control radsiant heat type electric fires as close proximity to flammable materials could cause fire.

Do not use for immersion heater control. There is a hard wire timer available from Grasslin conforming to beab regulations which is suitable for this application.