MCBAY GM51H Digital Engine Meter
The MCBAY GM51H Digital Engine Meter is a highly reliable, multifunctional monitoring instrument specifically designed for generator sets and industrial engines. Featuring a clear 5-row LED display, it provides real-time data on essential engine parameters including RPM, Oil Pressure (Kpa), Water Temperature (°C), Fuel Level (%), Battery Voltage (V), and total Running Hours (H). Built to operate on a wide DC 8-36V power supply, this versatile meter supports Magnetic Pickup Unit (MPU) inputs for accurate speed sensing, alongside analog sensor inputs for comprehensive fluid and temperature monitoring. The GM51H is equipped with programmable alarm functions, relay outputs (NC/NO/Common) for automated control, and a user-friendly front-panel interface with dedicated programming buttons, making it an essential component for optimal engine performance and protection.
Technical Specifications:
- Power Supply: DC 8-36V wide range operation
- Display Parameters: 5-row LED displaying RPM, Oil Pressure (Kpa), Water Temperature (°C), Fuel Level (%), Battery Voltage (V), and Running Hours (H)
- Input Signals: Magnetic Pickup Unit (MPU) for speed sensing; Analog inputs for Oil Pressure (OP), Water Temperature (WT), and Fuel Level (FL)
- Outputs & Interfaces: Built-in +5V output, configurable Relay outputs (NC/NO/Common) for alarms/control, and front-panel programming buttons (+, PROG, -)

| Brand | MCBAY |
|---|---|
| Model | GM51H |
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Shipping policy
If you are buying multiple items, please contact us before checking out so we can get you the best combined rate for shipping.
Our default shipping rate is $100, which is enough to cover the cost of most shipments, but it is not our expected shipping rate. Due to the varying weights and sizes of products and customer locations, please contact us with your location and the products you are interested in to get the best current shipping rates.
ENERAL DELIVERY INFORMATION
Orders will be processed and shipping during standard working hours (0830 – 1700 GMT+8) Monday to Friday (excluding Bank Holidays)
On rare occasions, your order may be handled and/or processed on a Saturday. However, we are unable to ship items on weekends, therefore any orders dealt with on the weekend will be send out the next following working day.
The cut-off point for orders to be shipped the same day is 14:00 – please contact us to confirm stock levels before placing your order
Any orders placed after the cut-off will ship the next working day assuming all parts are in stock and ready for dispatch.
All orders:
- must be paid for in full before any goods are dispatched
- require a signature upon delivery. Please ensure delivery can be made to an address where someone will be available to sign for the delivery
- are packaged with great care, ensuring your order and the contents it contains, makes it safely through the delivery network
MCBAY GM51H Digital Engine Meter
Upgrade your generator’s monitoring system with the MCBAY GM51H Digital Engine Meter. This multifunctional 5-row LED controller tracks RPM, oil pressure, water temperature, fuel level, and voltage in real-time. Operating on DC 8-36V, it features programmable alarms, MPU support, and relay outputs for ultimate industrial engine protection and control.

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