Digital Laser & LED Photo Non-Contact Tachometer Laser Beam for Accurate & Sensitive Rotation Detection **           This high quality non-contact tachometer has wide measuring range and high resolution. With LED or Laser, it precisely measure Rotational Speed (RPM) without touching the rotating or moving object. Offering high ±0.05% accuracy, instantaneous response time, auto-select test range, low power consumption giving a longer battery life and long detecting distance of up to 500mm or 20 inches (with Laser). Operation is very simple, just apply a reflective mark (included in package) onto the target object, then aim the beam at the mark and RPM will be seen on its 5-digit clear LCD. Wide range of applications include measuring rotating speed of machine, motors, model cars, automotive, trucks, aircraft, light rail vehicles, wheels, lathe for metal or wood cutting work, for HVAC applications to measure fan speed and other application that needed rotational speed measurements.   Special Features Tested according to European international guidelines and standards (CE Marking) Wide measuring range of 2.5~99,999 RPM High accuracy up to ±0.05 % High Resolution Long detecting distance up to 500mm (20 inch) with Laser Large 5 digits LCD Display Auto test range select Use Microcomputer LSI circuit and crystal time base offering high accuracy and quick measurement time Highly accurate, displays exact RPM with no guessing errors With fraction of minute sampling time (0.8 sec) Maximum, Minimum and Last Measured value Low battery indication Durable & Reliable Specifications LCD Display :  5 digits, 18mm (0.7") LCD with Function Annunciation Test Range :  2.5 to 99,999 RPM (r/min) Resolution :  0.1 RPM (2.5 to 999.9 RPM) * ****** * * 1 RPM (over 1,000 RPM) Accuracy :  ±(0.05% + 1 digit) Sampling Time :  0.8 sec. (over 60 RPM) Test range selection :   Automatic Memory : Max. value, Min. value and Last value Detecting Distance: 50~200mm / 2~10 inches (LED) 50~500mm / 2~20 inches (Laser) Time Base :  Quartz Crystal Circuit :  Exclusive one-chip of microcomputer LSI Circuit Power Supply :  9V Battery (included) Power Consumption: Approx. 35mA (LED) Approx. 30mA (LED) Operating Temperature:   0~50°C (32~122°F) Size :  131 x 70 x 29 mm Weight :  160g (including batteries) Standard Set Includes 1 x Digital Tachometer 2 x 600mm Reflective Tape Mark 1 x 9V Battery (FREE) 1 x Protective Carrying Case Quick Start Guide Standard Factory Package     Copyright © 2008. All rights reserved. Discount Instrument *