WiFi Smart Drip Irrigation Power supply: DC 5V/2A,Type-C USB Built-in battery:18650 rechargeable battery Standby current:135uA Wireless standard:IEEE 802.11b/g/n Wireless frequency:2.4GHz Wireless distance:45M Bluetooth version:Bluetooth 5.0 Waterproof grade: IP66 Operating temperature: 0℃~60℃ (14°F~140°F) Operating humidity: 1% ~ 95%RH(non-condensing) Size: 71mm(L) X 48mm(W) X 90mm(H) Installation Precautions (1) When installing, note that the water outlet is higher than the water inlet. (2) Pay attention to the direction of water inlet/outlet during installation and connect the filter head to the water inlet; (3) In order to ensure the best drip irrigation effect, it is recommended that the maximum length of the water pipe does not exceed 15 meters and the number of connected sprinkler heads does not exceed 10, beyond which the water flow and water pressure may be affected; (4) Avoid excessive bending or twisting of pipes when installing water pipes, make sure the pipes are connected tightly, and all the connections of pipes and sprinkler heads should be ensured to be sealed tightly to avoid water leakage and poor water flow; (5) nstallation should avoid vibration and shaking environment and application. Color: White Material: plastic Package Contents: 1 set of WiFi-enabled smart drip irrigation systems