
Mercoidin the UAE
Rugged pressure, temperature and level controls for heavy industrial, petrochemical and utility plants.

Mercoid, founded in 1916 and now part of Dwyer Instruments, manufactures a broad range of mechanical and electromechanical pressure, temperature and level switches and controls built for demanding service in electrical utility, petrochemical and heavy industrial facilities.
Founded in 1916, Mercoid is a long-established manufacturer of pressure, temperature, and level controls, now operating as part of Dwyer Instruments, Inc. Their products are widely deployed in electrical utility plants, petrochemical facilities, and heavy industrial operations where reliable process control is critical.
Mercoid Controls offers an extensive selection of switches and controllers covering a broad range of process variables, and General Tech Services is an authorised distributor of the full Dwyer and Mercoid product range for customers across the UAE.
What we supply from Mercoid
Genuine Mercoid products, supported by our technical team and accredited calibration laboratory in the UAE.
Mechanical Pressure Switches
Rugged electromechanical pressure switches that provide reliable on/off control or alarm signalling at preset pressure setpoints in industrial process systems.
View Details →Temperature Switches
Electromechanical temperature switches that open or close electrical contacts when a process reaches a preset temperature, providing control, alarm or shutdown functions.
View Details →Level Switches & Controls
Liquid level switches and controls that detect high, low or intermediate levels in tanks and vessels to trigger pumps, valves or alarms.
View Details →Differential Pressure Switches
Switches that monitor the pressure difference between two points and actuate contacts when a set differential is reached, ideal for flow and filter monitoring.
View Details →Pressure & Temperature Gauge Switches
Combination instruments that provide a visual indication of pressure or temperature together with adjustable switch contacts for local control and alarm.
View Details →Explosion-Proof Switches
Pressure, temperature and level switches built in explosion-proof enclosures for safe operation in hazardous and classified plant areas.
View Details →Interested in Mercoid?
Contact our team for genuine Mercoid products, technical support and accredited calibration across the UAE.