Instruments
Electrical Gauges: Precision Monitoring
This category includes 17 electrical gauges, with display sizes ranging from 5-inch (117 mm) large-face gauges, 85 mm GPS speedometers, and 80 mm tachometers, up to a 52 mm (2-1/16") gauge series. The products are intended for OEM / ODM integration and OEM / aftermarket applications on heavy-duty trucks, commercial buses, industrial equipment, generator sets, and commercial marine vessels. The series is built on stepper motor and air core movements with PCB circuit design, paired with dedicated sensors for oil pressure, coolant temperature, fuel level, and air pressure, with applications covering engine RPM measurement, oil pressure monitoring, coolant and oil temperature monitoring, fuel level display, voltage and current monitoring, and brake air pressure monitoring.
EW80070
• 5" Electrical Tachometer
• Stepper-Motor-Driven Electrical RPM Measurement
Technical Specifications
|
Diameter |
5" (Ø 117 mm) |
|
Movement |
Stepper Motor |
|
Full-Scale Range |
0 – 8000 RPM |
|
Accuracy |
±2% of full scale |
|
Sensor Type |
Ignition coil (4 / 6 / 8 cylinder) |
|
Standards |
Compliant with SAE J1059 |
|
Automotive-Grade Operating Temperature Range |
-40°C to +85°C |
|
Storage Temperature |
Per SAE J1810: -65°C to +85°C |
|
Ingress Protection |
IP67 (front side) |
Product Description
Overview
The EW80070 is a 5-inch (117 mm) electrical tachometer with a stepper motor movement and PCB circuit design, with ±2% full-scale accuracy. Input is compatible with ignition coil signals from 4-, 6-, and 8-cylinder engines, for engine RPM measurement on heavy-duty trucks, commercial buses, and industrial equipment, in both OEM integration and aftermarket replacement applications. OEM / ODM customization is available on request.
Compliant with SAE J1059. Automotive-grade -40°C to +85°C operating temperature, suitable for long-duration transport and heavy-duty operations.
Key Features
▸ High-RPM Precision Display
Full-scale 0–8000 RPM with ±2% accuracy — for high-performance and multi-cylinder engine applications.
▸ Multi-Cylinder Sensor Compatibility
Supports 4-, 6-, and 8-cylinder ignition coil signal inputs.
▸ Smooth Stepper Motor Display
Stepper motor with advanced PCB circuit design for smooth pointer movement.
Applications
For electrical RPM measurement on heavy-duty trucks, buses, coaches, agricultural machinery, construction equipment, forklifts, generator sets, and commercial marine vessels. Supports both OEM integration and aftermarket upgrades.