Description
The Speedhut 4-1/2″ -200 to 1200 EV Amp Gauge (FOR45-AM1-EV) is an essential instrument designed for precise monitoring of your electric vehicle’s electrical current. Engineered for accuracy and seamless integration, this gauge provides real-time readings of the amps flowing through your EV’s powertrain. Utilizing the Controller Area Network (CAN-Bus) communication protocol at a 500K baud rate, it offers a sophisticated method for assessing and optimizing power consumption. This gauge serves as a valuable tool for understanding your EV’s performance, aiding in diagnostics, and ensuring the efficient operation of its electrical components. The 4-1/2 inch display offers excellent visibility of the current readings, allowing drivers to stay informed about their vehicle’s power dynamics.
KEY FEATURES AND BENEFITS:
- Precise Current Monitoring: Provides accurate, real-time readings of electrical current ranging from -200 to 1200 amps, crucial for understanding power flow during various driving conditions, including acceleration and regenerative braking.
- CAN-Bus Integration: Operates on the CAN-Bus communication protocol at a 500K baud rate, ensuring seamless and reliable data transfer with the vehicle’s electronic systems. This advanced integration allows for more accurate and potentially richer data compared to traditional analog gauges.
- Enhanced Performance Awareness: Enables drivers to monitor power consumption, contributing to a better understanding of the vehicle’s performance characteristics under different loads and driving styles.
- Diagnostic Capabilities: Facilitates the assessment of the EV’s electrical system, potentially aiding in the early detection of anomalies or inefficiencies in power delivery or regeneration.
- Optimized Efficiency: By providing clear insights into current draw, the gauge can help drivers adapt their driving habits to maximize energy efficiency and extend the vehicle’s range.
- Clear Visual Display: The 4-1/2 inch gauge offers a large and easily readable display for monitoring current levels at a glance.
- Complete Wiring Solution: Ships with all necessary harnesses, including power and lighting, EV CAN, and EV CAN jumper harnesses, ensuring a streamlined installation process.
SPECIFICATIONS:
- Gauge Type: Amp
- Signal Type: CAN-Bus (500K baud rate)
- Range: -200 to 1200 amps
- Size: 4 1/2 inch
- Hole Size: 4.230 inches (108mm)
- Included:
- 3 ft Power & Lighting Harness
- EV CAN Harness
- EV CAN Jumper Harness
HOW TO USE:
- Preparation: Ensure your vehicle’s electrical system is turned off and follow all safety precautions for working with automotive electronics.
- Mounting the Gauge: Locate a suitable position on your dashboard or instrument panel and create a 4.230-inch (108mm) diameter hole for mounting the gauge. Secure the gauge in place.
- Connecting the Power and Lighting Harness: Connect the 3 ft Power & Lighting Harness to the gauge. Typically, this harness will have wires for power (12V), ground, and illumination. Refer to your vehicle’s wiring diagram for appropriate connection points.
- Connecting the EV CAN Harness: Locate the vehicle’s CAN-Bus network. Connect the provided EV CAN Harness to the gauge and then to the designated CAN-Bus connection points in your vehicle. The specific location and wiring of the CAN-Bus can vary significantly between EV models; consult your vehicle’s service manual for precise instructions.
- Using the EV CAN Jumper Harness (if needed): The EV CAN Jumper Harness may be used to facilitate connection to the CAN-Bus or to connect other CAN-Bus devices. Refer to the Speedhut documentation or your vehicle’s specific needs for its application.
- Final Checks: Once all connections are made, double-check all wiring for secure and correct connections.
- Testing: Turn on your vehicle’s electrical system and observe the gauge. It should begin displaying the current amp reading. Verify that the illumination functions correctly.
BENEFITS OF USING THE SPEEDHUT 4-1/2″ -200 TO 1200 EV AMP GAUGE (FOR45-AM1-EV):
- Precise Monitoring: Provides real-time insight into the EV’s electrical current for optimized driving and energy efficiency.
- CAN-Bus Compatibility: Direct integration with the vehicle’s CAN-bus system ensures accurate data acquisition for enhanced diagnostics and performance tracking.
- Improved Efficiency: Supports drivers in adapting driving habits to extend battery range and performance.
- Clear Readability: The large 4-1/2 inch display provides easy visibility under various lighting conditions.
- Simplified Installation: Includes all required wiring harnesses to streamline installation without the need for extra components.
FEATURES:
- Real-time Ampere Display: Continuously shows the instantaneous electrical current flowing in or out of the vehicle’s battery system.
- Negative Current Indication: Clearly displays negative amp readings, indicating energy regeneration during braking or deceleration.
- High Measurement Capacity: Accurately measures currents up to 1200 amps for discharge and down to -200 amps for charge.
- Direct CAN-Bus Data Acquisition: Communicates directly with the vehicle’s computer system via the CAN-Bus protocol for precise and synchronized readings.
- LED Backlighting Compatibility: Designed to work with the included power and lighting harness for clear visibility in all lighting conditions.
- Standard Gauge Size: The 4-1/2 inch diameter fits common aftermarket gauge mounting solutions.
- Plug-and-Play Harnesses: Includes specific EV CAN harnesses to facilitate a more straightforward connection to compatible vehicle systems.






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