Thermostats

Energy saving time proportional and integral (TPI) control with optimum start, delayed start and optimum stop energy saving technology
Wireless signal strength indicator operating at 868 MHz with a communication range of 30 metres in typical residential buildings
Operating temperature range from 0 to 40°C
IP30 Rated
ST9420C requires a 230V AC power supply, DT92E requires 2 x AA size, 1.5V alkaline batteries (supplied), CS92A requires 2 x AA size, 1.5V alkaline batteries (supplied)

Wireless digital thermostat
Operates on 868MHz for additional security
Operates with any boiler
Remote control via smartphone or tablet
Can become a programmable thermostat with the App

7 day programming with 4 program periods per day can be configured to meet almost any scheduling scenario for ultimate flexibility
Wi-Fi enabled thermostat allows for remote access via smart-phone or computer, Free smart-phone app for iPhone, iPad and Android operating systems
Ability to view local weather from web portal or app, Wink App Ready - No Wink Hub Required. Works with virtually any system type (C-wire required)
In the box you will find: Thermostat, Wallplate (attached to thermostat), Screws and anchors, Quick Start Guide, Thermostat ID Card, Wire labels, User Guide, Quick Reference Card
Energy Star Certified