Product features:
1. Controller is solar powered. Also can be powered by AC for indoor application.
2. Has manual key to manually open/close valves for the convenience of field operation and maintain.
3. With pressure switch installed to check valve open/close abnormal, alarm to main controller if there is failure.
4. There is one water/liquid level sensor attached to the controller, and sink into the tank. After setup low/high control levels, the control will open the latching valve at setup low levels, and turn off when the water/liquid reached setup high level.
5. If there is not enough solar power, the controller will turn off valve first, then turn self-off, recharging , and wake up automatically after recharged.
6. Field controllers in the range will automatically setup mesh network route to communicate with main controller.
7. Solar powered controller can work for almost one month under rain/cloudy days. Battery powered can last about 5 mont