DT-2238 | Lutron Dual-Mode Photo & Contact Tachometer with LCD & Memory Recall

Lutron · Sensors & Instrumentation

Description  The Lutron DT-2238 is a dual-mode tachometer designed to measure motor and machinery speed using both photo and contact methods. It delivers high-precision rotational speed measurements with ±0.05% accuracy and is ideal for use in industrial, automotive, and maintenance applications. The DT-2238 features a backlit LCD, memory recall, and durable ABS housing for reliable long-term use.     Technical Specifications Condition New/Never Used Surplus Brand Lutron Category Test Equipment Part Number DT-2238 Subcategory Tachometers Measurement Modes Photo Tachometer / Contact Tachometer Photo RPM Range 5 to 100,000 RPM Contact RPM Range 0.5 to 19,999 RPM Accuracy ±(0.05% + 1 digit) Measurement Distance Up to 500 mm (photo mode) Display Large LCD with backlight Measurement Units RPM, RPS Memory Functions Last, Max, Min readings recall Power Supply 4 x AA batteries (included) Battery Life Approx. 30 hours continuous use Auto Power Off After 60 seconds of inactivity Operating Temperature 0°C to 50°C (32°F to 122°F) Housing Material ABS plastic Dimensions Compact ergonomic handheld size Weight 190 grams (including batteries)     Information About DT-2238 The DT-2238 is a versatile tachometer in Lutron’s instrumentation lineup, combining photo and contact measurement in a compact handheld design. It can measure speeds from 5 to 100,000 RPM (photo) and 0.5 to 19,999 RPM (contact), offering flexibility for use with rotating equipment in hard-to-reach or hazardous environments. The device includes features like auto power-off, memory for min/max/last readings, and a visible laser light source for safer non-contact measurements. Ideal for field or workshop use, it supports multiple measurement units and ensures accuracy through a microprocessor-based circuit. Key Features: 2-in-1 Tachometer: Combines photo and contact RPM measurement in one device. Wide RPM Range: Measures from 5 to 100,000 RPM (photo) and 0.5 to 19,999 RPM (contact). High Accuracy: ±0.05% + 1 digit for reliable speed measurements. Clear LCD Display: Large backlit screen ensures visibility in dim environments. Memory Recall: Stores last, max, and min readings automatically. Long Battery Life: Up to 30 hours of continuous use with 4 x AA batteries. Auto Power Off: Saves power by shutting down after 60 seconds of inactivity. Durable Design: Rugged ABS plastic body for long-term industrial use. The DT-2238 delivers the reliability and precision required for professional rotational speed diagnostics across industrial and automotive settings.

Brand: Lutron · Category: Sensors & Instrumentation

Key features

• 2-in-1 Tachometer: Combines photo and contact RPM measurement in one device.
• Wide RPM Range: Measures from 5 to 100,000 RPM (photo) and 0.5 to 19,999 RPM (contact).
• High Accuracy: ±0.05% + 1 digit for reliable speed measurements.
• Clear LCD Display: Large backlit screen ensures visibility in dim environments.
• Memory Recall: Stores last, max, and min readings automatically.
• Long Battery Life: Up to 30 hours of continuous use with 4 x AA batteries.
• Auto Power Off: Saves power by shutting down after 60 seconds of inactivity.
• Durable Design: Rugged ABS plastic body for long-term industrial use.

Specifications

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