IMI Heatmiser neoStat 12v V3 - Smart Thermostat IMI Heatmiser neoStat 12V V3 – Low-voltage smart control for multi-zone systems neoStat 12V V3 is the low-voltage variant of our latest smart thermostat range, designed for systems that require a 12V powered thermostat with a volt-free output. With... MSRP: Was: Now: £83.23