The Timeguard NTT03 16A 24 Hour/7 Day Compact Electronic Immersion Heater Timeswitch has a large ” easy view” screen with blue LED backlighting.Self cancelling override button to next programme change.Red LED “Mains on” and green “Output” indicators.Features large easy push programme buttons.Automatic Summer/Winter changeover.4 on 4 off easy set programmes per day.28 on 28 off programmes per week.16 (4)A load rating.Optional 1 and 2 hour boost button.Shortest switching time 1 minute.
