Experience precise and safe speed measurement with our advanced Non-Contact Tachometer, designed for accurate industrial and general testing without physical contact. Crafted from durable ABS material, this model DT6685 offers a wide measuring range from 2.5 to 99,999 RPM with high resolution and outstanding accuracy of ±0.02%+1 digit, making it ideal for various applications requiring reliable rotational speed data. Key Features: · Non-Contact Speed Measurement: Ensures user safety and prevents wear or damage to the measured object by detecting speed without direct contact, suitable for industrial and mechanical testing. · Large LCD Digital Display: Features a clear and easy-to-read screen that shows real-time speed readings, enhancing measurement accuracy and convenience. · Data Storage Function: Supports storage and recall of the last, minimum, and maximum readings, along with up to 60 groups of measurement data, facilitating efficient data management during fieldwork or testing. · Auto Zero Function: Automatically resets to zero before each measurement, improving accuracy and consistency across multiple tests. · Wide Measurement Range & High Resolution: Measures speeds from 2.5 to 99,999 RPM with dual resolution modes—0.1 RPM for 2.5 to 999.9 RPM and 1 RPM for 1000 to 99,999 RPM—offering versatile performance for various speed measurement needs. · Optimal Measuring Distance: Operates effectively within 50 to 500 mm (2 to 19.7 inches) from the target, allowing flexible positioning during testing. · Fast Response Time: Provides rapid readings with a response time of 0.5 seconds for speeds above 120 RPM, enabling efficient workflow. · Suitable Operating Conditions: Designed to function reliably within a temperature range of 0-50°C (32-122°F) and humidity levels of 10-90% RH, ensuring stable performance in diverse environments. Specifications: · Material: ABS · Model: DT6685 · Measuring Range: 2.5 – 99,999 RPM · Resolution: 0.1 RPM (2.5–999.9 RPM), 1 RPM (1000–99,999 RPM) · Accuracy: ±0.02% + 1 digit · Measuring Distance: 50–500 mm (2–19.7 in) · Response Time: 0.5 seconds (above 120 RPM) · Operating Temperature: 0–50°C (32–122°F) · Operating Humidity: 10–90% RH · Storage Temperature: -10–60°C (14–140°F) · Storage Humidity: 10–75% RH · Battery: 9V 6F22 Square Battery (not included) Package Includes: · 1 x Non-Contact Tachometer DT6685 This tachometer is a reliable and user-friendly tool for professionals and hobbyists requiring precise rotational speed measurements. Its non-contact design, combined with comprehensive data functions and robust construction, makes it an essential instrument for accurate speed testing and monitoring in industrial, automotive, and mechanical applications.