Display: 5 digits, 18mm LCD Measuring Range: 2.5~99,999RPM Resolution: 0.1 RPM (2.5 to 999.9 RPM); 1 RPM (over 1,000 RP

DT-6234B   Photo Tachometer Display: 5 digits 31mm LCDAccuracy: ±(0.05%+1 digit)Sampling Time: 0.8sec(over 60RPM)Range Select: Auto-RangingTime Base: Quartz crystalDetecting Distance: 50~500mm/2~20 inch(photo)Power Consumption: Approx 50mA.Battery: 4x1.5V AA Size Battery or 6V direct current stable voltage powerMemory: Max. value, Min. value, Last valueCan store 96s dataTest Range: 2.5~99,999RPM(r/min)Resolution:         0.1RPM(2.5~999.9RPM)         1RPM(over 1,000RPM)Total Test Range: 1~99,999Packing: Gift boxSize: 195×76×40mmStandard Quantity Per Carton:  20Carton Size: 68×32×28cm Gross Weight:13kg

DT6234B Photo Tachometer