Features: 1. Single countdown function for non-periodic switch control. 2. Cycle countdown function for periodic switch control and time relay. 3. Adopt high precision industrial grade chip, with strong anti-interference capability. 4. Built-in rechargeable battery. 5. Suitable for industrial stoving, aging, drying, ventilation, irrigation, etc. Specification: Working voltage: 12V/24V/110V/220V (Optional) Power consumption: <1W Control power: 16A 250VAC Time setting: 1s - 29h 59min 59s Display: LCD Power failure memory: ≥ 60 days Timekeeping error: ≤1s/24h 25°C Internal battery: 1.2V 40mA rechargeable battery Working temperature: -20°C ~ 55°C Dimensions: 60*60*32mm / 2.36*2.36*1.26in Weight: Approx. 80g/2.8oz Package List: 1 * Cycle Timer Relay 1 * User Manual Note: 1. Due to the difference between monitors and light effects, the pictures may not reflect the actual color of the item. 2. Please allow slight error due to manual measurement. Thanks for your understanding.