1. This product supports multiple motor protection functions, including motor overspeed protection, low oil pressure protection, high oil temperature protection, high water temperature protection, and low battery alarm. 2. The multi-functional detection panel can display: engine speed, oil pressure, oil temperature, engine coolant temperature, and battery voltage. 3. Different sensor curves can be selected to help you understand the motor's operating status. 4. Supports custom sensor curves, allowing you to monitor motor operation more accurately. 5. The display uses a high-brightness digital tube, clearly displaying measured values ​​and ensuring more accurate data readings. Product Type: GM50H Motor Instrument, Multi-functional Digital Display Screen. Functions: 1. Multiple protection functions; 2. Speed ​​is converted from generator frequency; 3. Built-in multiple selectable sensor curves; 4. Customizable sensor parameter curves; 5. High-brightness digital tube display of measured values; 6. English and symbol explanations. Panel buttons are used to set and change system parameters. Parameter Display: 1. Engine speed; 2. Engine oil pressure; 3. Engine oil temperature; 4. Engine coolant temperature; 5. Battery voltage; 6. Cumulative operating hours. Protection Functions: 1. Engine overspeed protection; 2. Low oil pressure protection; 3. Over-temperature oil protection; 4. Over-temperature coolant protection; 5. Low battery voltage alarm. Measurement Range and Accuracy: 1. Engine speed measurement accuracy: Error ≤ ±1% (within the range); 2. Engine oil pressure measurement accuracy: 0-1100KPa, Error ≤ ±2.5%; 3. Coolant temperature measurement accuracy: 10-120 degrees Celsius, Error ≤ ±2.5%; 4. Engine oil temperature measurement accuracy: 10-150 degrees Celsius, Error ≤ ±2.5%; 5. Battery voltage measurement accuracy: Error ≤ ±1% (within the range). 6. Cumulative Time Range: 0-9999 hours; Specifications: Power Supply: DC8～36V; Current Consumption: Maximum: 1W; Sensor Input Resistance: 0～1000Ω; Speed ​​Input Signal Frequency Range: 300Hz～15kHz; Speed ​​Input Signal Amplitude Range: AC3～16V; Input Generation Frequency: 45～70Hz; Input Generation Voltage: AC40～280V; Alarm Output: Negative Output, Maximum DC1A; Operating Ambient Temperature: -20～65℃; Storage Ambient Temperature: -40～85℃; Protection Rating: IP54 (Front Panel After Installation); Dimensions (W x H x D): Approx. 100x100x77mm / 3.9x3.9x3 inches; Opening Dimensions (W x H): Approx. 91 x 91 mm / 3.6 x 3.6 inches; Weight: Approx. 150 g / 5.3 oz 1 x Engine Pressure Gauge 2 x Green Modules 2 x Fixing screws