Audible & visual alarm of the relief valve passing water, indicating something is wrong with the system
Specifically meets the criterion in G3 guidance para 3.55 (where the product is not immediately on view (i.e. in a cupboard) & to aid people with impaired vision or mobility)
Helps save water and energy to heat the wasted water
Can be used on ANY system where an active warning might be useful
Gives the installer a reason to talk about regular maintenance &making repairs before any unnecessary breakdown
Staged warning gives installer better chance of first time repair
Senses presence of water & temperature in four stages
(up to 20°C, 21-60°C, 61-85°C & >86°C) to aid with fault diagnosis
Simple, quick, hook on design
Requires no electrical specialist knowledge to fit
Battery operated (2032 coin cell, supplied)
Product Code
HD-S1P
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