Horstmann Electronic 7 Controller (With Boost)
The Horstmann Electronic 7 is a direct replacement for the older mechanical model made for Economy 7, the Horstmann Economy 7 Quartz (newer example here). Easy to fit, cost effective and fairly simple to use, It’s an excellent upgrade from the old Horstmann dial quartz unit into the digital world of immersion timers. Ultimately both models work the same. But the Electronic 7 is much more versatile, and more precise. As well having pre-set timing options specifically programmed for off-peak Economy 7 usage, this model can be tailored…
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