Usage Tips:Power: 2 x AA alkaline batteries (not included) Working Water Pressure: 7.25-116 psi Working Temperature: 40.1-113 (4.5-45) Working Time: more than 6 months Waterproof: IPX5 Warm Tips: Do not use the timer when air temperature is below 40(4.5), the timer should be removed from the hose faucet and stored indoors to avoid potential frozen damage. Filter can trap dirt particles, please clean filter regularly and replace it worn. Please replace batteries when the low battery indicator appears the display. When replacing the power units, please make sure the timer is dry. To prevent leakage, make sure the water timer is tightly attached to the faucet and hose, add rubber washer and thread seal tape if necessary. Colour:Yellow & Black Material:Plastic Package Contents: 1 * Water Timer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.