KYL-818 rf wireless i/o module 8 digital input and 8 relay output 1 master working with 4 slaves KYL-813 433mhz valve control

Water Cooled Low Teperature Chiller with Expansion Valve Control

Proportional Valve Control Panel

Valve Controlling Manipulator for Gas Detector

Valve controller, turns off the gas valve when gas has leakage

Smart Wireless Valve Controller, 315MHz Operating Frequency