Geschwindigkeitsmesser

PHOTO/CONTACT TACHOMETER(Laser),LINE-SPEED METER, digital tachometer Model: 2236B Display: 5digits 18mm (0.6”) LCD Accuracy: ±(0.05%+1digit) Sampling Time: 0.5sec (over 120RPM) Range select: Auto-Ranging Memory: Last & #118alue, Max. & #118alue and Min. & #118alue Measuring Range: PHOTO TACH: 2.5 to 99,999RPM CONTACT TACH: 0.5 to 19,999RPM SURPFACE SPEED (m/min): 0.05 to 1,999.9m/min Resolution: PHOTO TACH: 0.1RPM (2.5 to 999.9RPM) 1RPM (over 1,000RPM) CONTACT TACH: 0.1RPM (0.5 to 999.9RPM) 1RPM (over 1,000RPM) SURFACE SPEED (m/min): 0.01m/min (0.05 to 99.99m/min) 0.1m/min (over 100m/min) Battery: 4×1.5V AA battery Detecting Distance: 50mm to 500mm (Laser) Time Base: 6MHz Quartz crystal Power consumption: Approx. 45mA Measuring through the two tops, more conveniently and quickly