Electronic immersion controller with programmable operationSuitable for single, dual and twin immersion elements Pre-set adjustable (ie minimise or cancel) programs for use with low rate tariffs (Economy 7, Economy 10 & Eco20:20) Direct upgrade to Horstmann E7 & E7Q and Sangamo Q7 controllers 24 hour electronic timer Automatic summer/winter time change Programmable boost function - 2 hours maxTechnical Specification:Power Supply: 230V +10% / -15%Frequency: 50/60HzPower Consumption: 1.2WContact Rating: 13A Resistive 230V Suitable for immersion heaters up to 3kWContact Type: Micro-disconnection on control. Disconnection to immersion heater(s) via double pole rocker switchMemory Reserve: 3 yearsTiming Accuracy: +/- 0.5 sec per day at +23°COperation Temperature: 0°C to 35°CShock Protection: Class 1Live Parts Protection: Enclosure ProtectionDirt and Moisture Protection: IP30Dimensions: 169mm wide, 114mm hight, 60mm deep (excluding rocker switch & buttons)Complies with: BS EN60730