drip irrigation system water timing diy kit solar panel automatic water-filling device intelligent timer home gardening watering

tee connector size: 4x6mm you can water 1-15 pots of plants at the same time. built-in battery can store power and maintain continuous power supply. two charging methods: solar panel charging / usb power cable charging. low battery protection. when the battery is low, the device will warn and slowly sworking to protect itself. data storage function. after turning off the power, the device is still the data you set previously