Secure (Horstmann) Electronic 7 Immersion Heater Control

• Guarantee - 1 year

Features and benefits

• Compatible with most cheap rate or off peak tariff structures, the Electronic 7 is fully interchangeable with all past and present Horstmann Economy 7 controllers
• Built in clock – automatic Summer / Winter time change
• Up to three off peak settings per 24 hours
• Programmable and manual boost
• Programme security feature
• Suitable for use with single, dual or twin element immersion heaters