1- Liquid Level Control Relay

Sigma Liquid Level Control Reliefs, Water Tanks, Treatment Plants, wells, Pumps, Fuel Tanks and All Industrial Fluid Storage Systems for conductive liquid stores to check the fluid level of the liquid and allow the tank to be filled with or unloaded with pump motors.

2- Time Relay

Sigma Time Rollers Provides Time Control Control by at the end of the setting time set up at the end of the time set.

3-Star Triangle Time Relay