Feature: 1. MULTIPLE MODES: Choose the automatic or manual modes of the radiator thermostat to meet your personal needs while saving on energy and energy bill costs. Automatic mode has four time programs for each day of the week, giving you the freedom to independently make your daily schedule, so your comfort setting matches your time very well 2. ENERGY SAVING: If needed, only use a heating plan to heat your home to the right temperature to save on energy and costs on your bills 3. UPGRADEABLE SOFTWARE: Thermostat software full stack support remote upgrades, continuous functionality and product performance optimization 4. TECHNICAL PARAMETERS: Thermostatic radiator valve temperature display accuracy is +1℃, communication frequency 2.405~2.48GHz 5. EXCELLENT PERFORMANCE: Smart thermostat is made with fine workmanship, possess compact appearance and stable performance, can make sure durability and stability Specification: Item Type: Radiator Thermostat Model: ME168 Electrical Specifications: Power Supply: 2 x 1.5V AA Ambient Temperature: 0 to 50℃ Temperature Setting: 5~35℃ Temperature Display Accuracy: +1℃ Ambient Storage Temperature: -10~60℃ For Zigbee Standard: IEEE802.15.4 Communication Frequency: 2.405~2.48GHz Electrical Safety Implementation Standard: GB14536.1-2008 GB14536.10-2008 . Package List: 1 x Temperature Controller1 x User Manual12 x Accessories