Features: 1Using high?quality materials, exquisite appearance and comprehensive functions 2The engine monitor has 5 screen LED digital display, can provide accurate numbers 3Generator frequency can be converted into speed 4The sensor curve can be customized through the panel buttons, and the panel buttons can set and modify system parameters 5Various parameter protection values can be set by themselves Item Type: Diesel Engine Monitor Parameter Display: Engine speed Engine oil pressure Engine cooling water temperature Engine oil temperature Accumulated engine operation Battery voltage Protective Function: Engine overspeed protection Low engine oil pressure protection Engine cooling water temperature protection High engine oil temperature protection Low battery voltage protection Emergency stop Specifications: Power Supply: DC 8-36V Power Consumption: maximal: 1.5W Sensor Input Resistance: 0-1000ohm Speed input Signal Frequency Range: Freq 50Hz-10kHz Speed input Signal Amplitude Range: AC 3-65V Input Power Generation Frequency: Freq 45-70Hz Input Generating Voltage: AC50-280V Alarm Output: Maximum DC3A Working Environment Temperature: -25-65 Storage Environment Temperature: -40-85 Protection Level: IP54 (front panel after installation) Dimensions (H x W x D): Approx. 210 x 150 x 90mm / 8.3 x 5.9 x 3.5in(the thickness of the inclined mounting bracket is 190mm) 1 x Control Box2 x Keys2 x Plastic Connector1 Bag Accessories