0 - 40 °C temperature range. 2.4GHz Wi-Fi required.
Horstmann Secure E7+ Smart Immersion Heater Control for Economy 7
Secure H3747 Smart 4 Channel Programmable Stat ~ Replaces Horstmann H37XL H47XL
Secure H3747 Smart 4-Channel Receiver Programmable Thermostat With WiFi Card
Secure E7+ Smart Immersion Heater Control
Horstmann (Secure) Beanbag Smart Wireless Thermostat - 2 Zone + Hot Water Pack
Horstmann Secure E7+ Smart Immersion Heater Control
