Economy 7 2 Hour Quartz Immersion Heater Control, 0°C to 35°C, IP30, White

• Quartz controlled accuracy within 10 minutes a year
• Rechargeable battery
• Summer and winter time settings
• Boost timer
• 'Boost on' indicator light
• Economy 7 Quartz 2hr has a 1-2 hour boost timer
• Large terminals and back box
• Off-peak indicator light
• Industry standard wall box and connections
• 7 years no quibbles warranty

Designed for use with Economy 7 off peak rate overnight electricity, the E7 Quartz is the standard by which all other water heating controls are judged and is the all time best seller in water heating controls.