MERCYDA Speed Governor is suitable for fitment of all type of commercial Transport category vehicles and also for transport vehicle of educational institution. MERCYDA is 100% Tamper proof with precision parts.

MERCYDA Speed Governor approved for different speed like 40KMPH/ 50KMPH/ 60KMPH/ 65KMPH and 80KMPH in 1250 (out of 650 to 80KMPH) various models of TATA, ASHOK LEYLAND, EICHER, MAHINDRA, FORCE MOTORES, SWARAJ MAZDA, etc.

Road Speed Limiters were developed to improve safety and the environment by controlling the top speed of vehicles, thus reducing serious accidents and pollution. The basic function of the system is to limit the maximum speed of a vehicle to a preset level whilst the throttle (accelerator) pedal is fully depressed, without a noticeable variation in the speed. In many cases this restriction in the top speed has shown todramatically reduce the amount of fuel usedwhen compared to higher top speeds.

The reduction of fuel costs is an important part of most businesses. The reduction of carbon dioxide emissions is also becoming a major factor for many companies. When a reduction in fuel consumptions recorded, a reduction in carbon dioxide emissions is also apparent. For companies with an active ‘Green policy’, the introduction of speed limiters into fleet vehicles can be a major step forward in reducing their carbon footprint. The increase in fuel economy is not the only benefit however, as the operating RPM is much lower at 70 mph as opposed to 80+ mph the engine and vehicle component can also be reduced.


The Master Control Unit is powered By battery through the Ignition switch. When ignition is turned ON, the MCU is powered. The MCU activates the motor unit which rotates anti-clockwise, thereby equaling the length of the Spring Rod to that of the length of the original connecting rod, to allow maximum acceleration.

When the vehicle is in motion, the Master Control Unit receives beyond pulses from the speed sensor and computes the speed of the vehicle. It constantly monitors the speed of the vehicle.

When the speed of the vehicle reaches the set speed, the FCD activates the Solenoid Valve by means of which the flow of the diesel is regulated. This controls the fuel flow to the engine resulting in a stabilized speed.


Purely fuel control systems Increase the vehicle efficiency & mileage
Latest microchip technology Suitable for all types of vehicles
Easy installation Strong metallic cord used for diesel flow
Sensor needle and accessories made from brass Double sided PCB used to protect high voltages & spikes
High gauge power coated Metallic enclosure used for FCB and MCD Sufficient sealing points used to protect tampering
Fully tamperproof system Portable speed setter used for setting permanent speed ie., 60/65 Km. etc.
Beep sound and red signals comes after set speed exceeding Beep sound comes of any disconnection of wires
Good and attractive look and many more……
Technical Specifications

Electronic Control Unit
Voltage 12 V (or) 24 V
Temperature 5 deg. C to 55 deg. C +2 deg C
Operating Current 1 amp to 1.5 max
Solenoid Valve
Voltage 12V only
Operating Current 0.9 to 1.8 Amp
Speed Sensor
Voltage 12V only
Frequency 1 Hz to 400 Hz
No. of Pulses 2 P.P.R / rotation
Duty Cycle Signal 50% of Total Time Period