LuxPRO PSD011B Pro-Spec Battery Powered Digital Thermostat, Building Supplies - Amazon Canada
Beok Wired Digital Room Thermostat for Gas Boiler Heating 3A Programmable Thermoregulator Battery Powered Thermostato - AliExpress
Wengart Gas Fireplace Thermostat WG01BW,Battery Powered,Large Digital LCD Display,Programmable,COM-NO-NC Wire Connector,White with Blue Backlight - Amazon.com
Digital Room Thermostat, Programmable Wireless Thermostat LCD Wall Mounted Battery Powered Thermostat Temperature Control for Hotel Hospital School Office ( Battery Not Included) : Amazon.co.uk: DIY & Tools
Effortless Installation Battery Powered Zigbee Thermostat for Any Home | eBay