Horstmann Wireless Electronic Digital Room Thermostat & Receiver HRT4-ZW. · Operating temperature: 0 to 40°C. · Temperature setting range: 5 to 30°C. · Battery operated thermostat: 2 x AAA Alkaline. · Thermostat and receiver dimensions: H 86 x W 86 x D 36.25 mm. · Receiver operating voltage: 230 V AC. · Switching capacity: 3 (1) A. · ErP rating : Class 4. Used few marks and scratches. Works great.
eBay