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. 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: Power consumption: <1W Control power: 16A 250VAC Time setting: 1s - 29h 59min 59s Display: LCD Power failure memory: ≥ 60 days Timekeeping error: ≤1s or 24h 25°C Internal battery: 1.2V 40mA rechargeable battery Working temperature: -20°C - 55°C Dimensions: 60x60x32mm or 2.36x2.36x1.26in Weight: Approx. 80g or 2.8oz Package List: 1 x Cycle Timer Relay 1 x 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. 3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.