Features: High-performance CPU for stable and reliable operation. Large LCD display with blue backlight for easy reading and elegant appearance. Memory function retains settings during power outages. Powered by batteries for easy replacement. Designed with safety and high reliability, tested to meet safety standards. Touch buttons enable simple and intuitive operation. Temperature accuracy of 0.5C maintains precise control. Child lock feature prevents accidental changes by children. 5+2 day programmable schedule with DIY programming options; includes two preset modes for convenience. Holiday mode provides comfortable temperature settings during absences. Specifications: Power: 2 x AA 1.5V alkaline batteries (NOT included) Display accuracy: 0.5C Probe sensor: NTC (10k) 1% Contact capacity: 5A Operating temperature range: 050C Temperature adjustment range: 535C Temperature display range: 040C Output: Switch relay Insulation condition: Normal environment Programming cycle: Weekly Installation: Wall-mounted or tabletop using battery compartment Weight: 286g / 10.1oz Package List: 1 x Thermostat 1 x Receiver 1 x Set of Screws Note: New and old versions of this product may be shipped randomly. Please ensure you are comfortable with this before placing your order.