GM50H.
Collecting engine parameters through resistive sensors, with alarm protection function, modifying parameters through keypad.
GM50HR.
On the basis of GM50H, RS485 interface is added, and engine parameters can be monitored and operating parameters can be set through PC software.
GM50C.
Collect engine parameters through CAN interface, with alarm protection function, modify the parameters by pressing the key.
GM50CR.
Based on GM50C, add RS485 interface, can monitor engine parameters and set running parameters through PC software.

1. With a variety of protection functions 2. Power generation frequency conversion speed
3. Built-in a variety of sensor curves can be selected
Customizable sensor parameter curve
Highly visible digital tube displays the measured value
5. English and symbolized instructions
7. Panel key to set and modify system parameters

Parameter display
1. engine speed; 2. engine oil pressure 3. engine oil temperature; 4. engine cooling water temperature; 5. battery voltage; and
6. Accumulated working time.
Protection function
1. engine overspeed protection; 2. low oil pressure protection; 3. high oil temperature protection; 4. high water temperature protection; 5. low battery voltage alarm.

Measurement range and accuracy
1. Accuracy of RPM measurement: Error≦S1% (within the range).
2. Oil pressure measurement accuracy: 0-1100KPA, error≦S2.5%.
3.Water temperature measurement accuracy:10-120 degree Celsius, error≦S2.5%.
4. Oil temperature measurement accuracy: 10-150 degrees Celsius, error≦S2.5%.
5. Battery voltage measurement accuracy: error≦S1% (within the range)
6. Accumulated time range: 0-999 hours.

Specification
Power supply:DC8~36V
Power consumption:MAX:1W
Sensor input resistance:0~1000ohm
RPM input signal frequency range:Freg 300Hz~15kHz
RPM input signal amplitude range:AC 3~16V
Input power generation frequency:Freg 45~70Hz
Input voltage:AC40~280V
Alarm output: Negative output, maximum DC1A
Operating ambient temperature:-20~65℃.
Storage ambient temperature:-40~85℃.
Protection level: IP54 (front panel after installation).
Overall Dimension(W*H*D):100mm*100mm*77mm
Hole size(W*H):91mm*91mm;
Weight:150g