Phototach Tachometer - Contact / Noncontact - OTC Tools and Equipment

The OTC 3665 Phototach Tachometer is a professional-grade instrument designed for accurate RPM measurement across diverse automotive and industrial applications. This versatile device provides both contact and non-contact (photo tac) operational modes, offering technicians and mechanics the flexibility required for various diagnostic and maintenance tasks. Its robust construction ensures reliable performance and lasting durability in demanding work environments.

Key Features

• Dual Measurement Versatility: Effortlessly switch between non-contact infrared measurement with a laser pointer and direct contact measurement using the included adapter tips, providing maximum adaptability for any situation.
• Precision Non-Contact Readings: Utilize advanced infrared technology for accurate RPM readings from 2 to 20 inches away. The non-contact design eliminates torque loss for true precision and minimizes wear on equipment, ensuring safety and efficiency.
• Extensive Measuring Range: Accurately measure rotational speeds from 2.5 to 99,999 RPM, making this tool suitable for a broad spectrum of machinery, engines, and rotating components.
• Clear Display & Data Retention: Features a large 5-digit LCD with autoranging for quick, easy-to-read measurements. Built-in min./max. memory storage allows for tracking and analysis of critical RPM data.
• Comprehensive Accessory Kit: Comes complete with four styles of clip-on contact adapter tips for secure physical measurements and reflective tape for effective non-contact applications.

Applications

The OTC Phototach Tachometer 3665 is an essential tool for:

• Automotive diagnostics and repair: Precisely assess RPM for engine tuning, troubleshooting, and verifying component performance.
• Industrial maintenance: Monitor equipment condition, implement predictive maintenance programs, and ensure machinery operates within specified parameters.
• Machine shop operations: Verify rotational speed for precise tool calibration and machining accuracy.
• Hazardous or inaccessible areas: Safely obtain RPM readings where direct physical contact with rotating components is impractical or unsafe.

Specifications

• Measuring Range: 2.5 to 99,999 RPM
• Display: Large 5-digit LCD with Autoranging
• Dimensions: 11 x 6.1 x 3.2 inches
• Weight: 2.05 lbs
• Power Supply: 9V battery