DT-2857 Digital Tachometer Non-Contact Laser, Photo Tachometer Surface Speed Tester Auto Meter 2.5~99,999 RPM Speedometer, Black

Product Description Applications: Used to measure rotative velocity, surface speed, frequency of motor. Applicable to the product departments of motor, fan, paper-product, chemical fiber, washing-machine, automobile, airplane, steamer etc.Feature: The use of durable, long-lasting components, including a strong, light weight ABS-plastic housing assures elegant shape and ease of use. Measurement Range: 2.5 ~ 99,999 r / minResolution: 0.1 r / min (2.5 ~ 999.9 r / min) 1 r / min (Over 1000 r / min) Accuracy: +-(0.05% n + 1 d) Sample Thickness:1.0 s (Over 60 r / min) Test Range Select: Automation Memory: Max / Min / Last Value Time Base: Quartz Crystal Laser Tach Detecting Distance: 50 ~ 250 mm / 2 ~ 10 inch (Typical), Max. 600 mm / 14 inch Power Consumption: 80 mA (Testing) Operating Temperature:0 ~ 50 Degree Power Supply: 4 x 1.5 V AA size (UM-3) battery Dimensions: 145 x 74 x 32 mm Weight: About 260 g Package includes: 1* Main Unit 1* Carrying Case 1* Operation Manual 1* Reflective tape 350mm

• Measuring RPM is safe & accurate without attachment to object; Digital display gives exact RPM with no guessing or errors.
• Used the exclusive MICRO-COMPUTER LSIcircuit and crystal time base to offer the high accuracy measurement & fast measuring time.
• The last Value / max. Value / min. Value will be automatically stored in memory and can be displayed by turn.
• Digital Tachometer Non-Contact Laser with wide measuring range and high resolution.
• Measuring range:Rotative velocity laser 2.5-99999r/min