Frost protection. Features a colour coded, bright LED warm/cool display and Braille markings on the main override buttons.
Secure C1727 2 Channel Programmable Room Thermostat Direct Replacement for Horstmann CentaurPlus ServicePlus Thermoplus Bluetooth Programming with Smart WIFI Add-On Option App Controlled
Horstmann/Secure H3747 4 Channel Wireless Smart WiFi App Phone Programmable Room Thermostat (Replaces H37XL & H47XL) - Hanicks
Horstmann Wireless Electronic Digital Room Thermostat Only HRT4-ZW
Horstmann Secure PTD 7 Day Programmable Wireless Room Thermostat Only
DEWIN Wireless Relay 12V - 12V Wireless Remote Switch DC 4V 5V 6V 7.4V 9V 12V Wireless Relay Remote Control One Key Switch Receiver Transmitter
HORSTMANN SECURE CENTAURPLUS C27 REPLACEMENT PROGRAMMER *READ DESCRIPTION*
