Enhance your measurement capabilities with this versatile Digital Tachometer, designed to provide both contact and non-contact RPM readings with exceptional accuracy and ease. Equipped with dual measurement methods, this tachometer offers photoelectric laser non-contact speed measurement as well as contact RPM and line speed measurement, making it ideal for a wide range of industrial and mechanical applications. Key Features: · Dual Measurement Modes: Combines contact and photoelectric laser non-contact tachometer functions to measure rotational speed, light source flicker frequency, and surface speed with precision. · Wide Speed Range: Non-contact measurement supports 3 to 100,000 RPM, while contact mode covers 3 to 19,999 RPM, along with distance and speed measurements up to 99,999 meters, 1,999.9 m/min, and 9,999.9 ft/min. · High Accuracy and Resolution: Provides highly accurate readings with resolutions of 0.1 RPM for speeds under 10,000 RPM and 1 RPM for higher speeds, ensuring reliable data for critical applications. · Multi-Functional Operation: Features max and min value recording, data hold for stable readings, and automatic shutdown to conserve battery life. · HD Backlit LCD Display: The clear, six-digit backlit screen allows easy reading of measurements even in low-light or dark environments. · Robust and Portable Design: Made from durable ABS material, the handheld tachometer is compact and lightweight (120g), perfect for field and workshop use. · Broad Industrial Application: Suitable for motors, fans, paper, plastic, chemical fiber industries, washing machines, automobiles, aircraft, ships, and more, supporting diverse manufacturing and maintenance needs. Specifications: · Model Options: TA500A (Non-contact), TA500B (Contact), TA500C (Non-contact and Contact) · Measurement Range:  - TA500A: 3–100,000 RPM (Non-contact)  - TA500B: 3–19,999 RPM (Contact), 0–99,999 m, 0–1,999.9 m/min, 0–9,999.9 ft/min  - TA500C: Combination of TA500A and TA500B ranges · Accuracy:  - TA500A: ±(0.05% FS + 1 RPM)  - TA500B: ±(0.1% FS + 1 RPM), ±(0.1% FS + 0.2 m), ±(0.1% FS + 0.2 m/min), ±(0.1% FS + 0.6 ft/min)  - TA500C: Matches TA500A and TA500B accuracy accordingly · Resolution: 0.1 RPM (<10,000 RPM), 1 RPM (≥10,000 RPM); meters and speed units vary by model · Display: 6-digit LCD, max reading 99,999 · Effective Measuring Distance: 50 mm to 500 mm (non-contact) · Sampling Time: 0.8 seconds (above 60 RPM) · Operating Environment: -10°C to 50°C, max 80% RH, indoor altitude <2000 m · Storage Environment: -10°C to 50°C, max 70% RH (battery removed) · Power Supply: 2 x 1.5V AAA batteries (not included) · Dimensions: 146 x 59 x 29 mm (5.75 x 2.32 x 1.14 in) · Weight: 120 g (4.23 oz) Package Includes: · 1 x Digital Tachometer · 2 x Reflective Tape · 4 x Accessories · 1 x User Manual (English) This Digital Tachometer is an essential tool for professionals requiring precise and reliable rotational speed and surface speed measurements. Its multifunctional design, wide measuring range, and clear backlit display ensure optimal performance across various industrial and maintenance applications.