Description
The Speedhut 2-5/8″ 50-250C Cylinder Head Temp w/ Warning (R25-CT2-REV) provides accurate and immediate monitoring of your engine’s cylinder head temperature. This gauge is part of the Revolution Series and features a clear 2-5/8 inch (67mm) display with a temperature range of 50 to 250 degrees Celsius. A key feature of this gauge is its integrated warning light, which can be set to alert you to both low and high temperature conditions, helping to prevent potential engine damage. It comes complete with a K-Type thermocouple temperature probe designed for 14mm cylinder head mounting and a wiring harness for straightforward installation.
KEY FEATURES AND BENEFITS:
- Real-time Temperature Monitoring: Provides continuous and accurate readings of your engine’s cylinder head temperature, allowing you to stay informed about its operating conditions.
- Adjustable Warning System: Features a settable warning light that illuminates when the cylinder head temperature goes outside your pre-defined safe range (both low and high), providing an early indication of potential issues.
- Peak Temperature Recall: Allows you to recall the highest and lowest cylinder head temperatures recorded, offering valuable insights into your engine’s thermal behavior.
SPECIFICATIONS:
- Gauge Type: Temperature Gauge
- Gauge Subtype: Cylinder Head Temperature Gauge
- Temp Sender Type: K Type Thermocouple Temp Probe
- Range: 50-250 °C
- Size: 2 5/8 inch
- Hole Size: 2.67″ (68mm)
- Warning Light: Yes
- Gauge Mounting Ring: Included
- Ships With: Cylinder Head (14mm) Type K Probe 9′ long, Braided steel line. 3 ft Power & Lighting Harness – for LED Lit Gauges and Clocks
HOW TO USE:
- Mount the Gauge: Secure the gauge in a 2.67″ (68mm) diameter hole using the provided mounting ring.
- Install the Temperature Probe: Mount the 14mm K-Type thermocouple probe under a suitable spark plug on the cylinder head. Ensure it is properly positioned and tightened according to the spark plug manufacturer’s instructions.
- Connect the Wiring:
- Connect the red wire from the power harness to a +12V accessory power source.
- Connect the black wire to a suitable ground.
- Connect the white wire to a +12V dash lighting source if you desire the gauge to illuminate with your vehicle’s lights.
- Connect the temperature probe to the gauge using the designated wires on the harness.
- Set the Warning Light: Once the gauge is powered, follow the instructions included with the product to set your desired low and high temperature warning thresholds. This typically involves pressing and holding a button on the gauge face or back for a specific duration and then adjusting the set points.
- Monitor Temperature: Observe the gauge during vehicle operation to track the cylinder head temperature. The pointer will indicate the current temperature in Celsius.
- Recall Peak Temperature (If Needed): If you want to see the highest or lowest temperature reached during a drive, follow the instructions in the product manual to activate the peak recall function.
BENEFITS OF USING THE SPEEDHUT 2-5/8″ 50-250C CYLINDER HEAD TEMP W/ WARNING (R25-CT2-REV):
- Proactively monitor your engine’s health: Especially important for air-cooled engines, allowing you to stay ahead of potential issues.
- Real-time temperature display: Detect overheating issues before they lead to significant damage, saving you time and money on repairs.
- Settable warning light: Provides an immediate visual alert if temperatures exceed or fall below your defined safe operating range, helping you take corrective action.
- Peak recall feature: Helps you understand the thermal stresses your engine experiences under different driving conditions.
- Valuable data: Offers peace of mind for any vehicle owner concerned about engine longevity and performance.
FEATURES:
- Easy Installation: Designed for mounting in a standard 2.67″ (68mm) hole and includes the necessary mounting ring and wiring harness for a relatively simple setup.
- Durable Construction: Built with a solid aluminum bezel and weather-resistant components for long-lasting performance in various conditions.
- Clear Visual Display: The 2-5/8″ gauge face with illuminated numbers and pointer ensures excellent readability, day and night.





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