Lutron DT-2237A Tachometer

Lutron DT-2237A Tachometer

Lutron DT-2237A Tachometer

Product Description

The Lutron DT-2237A Tachometer is a reliable and highly accurate instrument designed to measure engine RPM (Revolutions Per Minute) in real-time. It is compatible with a wide range of 2-stroke and 4-stroke gasoline engines with various cylinder configurations, making it an essential tool for automotive technicians, mechanics, instructors, and motor enthusiasts alike.

Whether you’re diagnosing engine issues, tuning for performance, or simply monitoring engine behavior, this tachometer delivers fast, accurate, and stable measurements every time.

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Key Features Lutron DT-2237A Tachometer

• Wide Compatibility

  • 4-stroke engines: Supports 2, 3, 4, 5, 6, 8, 10, and 12-cylinder configurations.

  • 2-stroke engines: Supports 1, 2, 3, and 4-cylinder configurations.

  • Ideal for motorcycles, cars, small boats, and various industrial machinery.

• High Precision RPM Measurement

  • Accuracy: ±(0.05% + 1 digit)

  • Resolution:

    • 0.1 RPM for readings below 1,000 RPM

    • 1 RPM for readings 1,000 RPM and above

  • Real-time updates with ~1-second sampling time

• User-Friendly Display

  • 5-digit LCD display with 10 mm (0.4 inch) digit height

  • Clear and easy to read, even in low-light environments

  • Signal input indicator (“Monitor” LED) confirms active measurements

• Smart Memory Function

  • Automatically records:

    • Last measured value

    • Maximum RPM

    • Minimum RPM

  • Enables performance comparisons before and after engine adjustments or repairs

• Durable and Portable Design

  • Constructed with robust ABS plastic for field and workshop environments

  • Comes with a protective storage case for easy transport

  • Compact and lightweight design (250 g including batteries, excluding sensor)

• Reliable Power and Operation

  • Powered by 4 x 1.5 V AA (UM-3) batteries

  • Low power consumption (~DC 10 mA)

  • Built-in low battery indicator for timely replacements

• Stable Internal Circuitry

  • Utilizes a quartz crystal time base

  • Operates via a single-chip C-MOS micro-computer

  • RPM detection through an inductive pick-up sensor using a secondary tachometer method

• Operating Conditions

  • Temperature: 0 to 50°C (32 to 122°F)

  • Humidity: Less than 90% RH

• Dimensions

  • Main Unit Size: 190 x 72 x 37 mm (7.5 x 2.8 x 1.5 inches)

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Summary

The Lutron DT-2237A Tachometer is a powerful and precise tool tailored for anyone who needs dependable RPM measurements from gasoline engines with varying cylinder counts. With its robust build, intuitive display, smart memory functions, and compatibility with both 2-stroke and 4-stroke engines, this device is a top choice for professional and enthusiast use. Whether you’re tuning a high-performance car or maintaining industrial equipment, the DT-2237A delivers unmatched reliability and convenience.