Digital Laser Photo Tachometer Non Contact RPM Tach (SM6234E)

1) Contact tach range: 2.5~99,999 RPM 2) Resolution: 0.1 rpm / 1 rpm 3) MAX, MIN, last value memory, can store 96s data 4) 5 digits 18mm (0.6") Yellow backlight LCD 5) Accuracy: ±(0.05%+1 digit) 6) Sampling Time: 0.5sec(over 120RPM) 7) Range Select: Auto-Ranging 8) Memory: Max. value, Min. value, Last value 9) Can store 96s data 10) Time Base: 6MHz Quartz crystal 11) Detecting Distance: 50~500mm 12) Power Consumption: Approx 55mA 13) Test Range: 2.5~99,999RPM 14) Resolution: 0.1RPM(2.5~999.9RPM) / 1RPM(over 1,000RPM) 15) Total Test Range: 1~99,999 16) Battery: 3 x 1.5V AA batteries (not included) 17) Size: 15.5cm x 7cm x 3.2cm