ST8030 Mini Digital Photo Laser Digital Tachometer Non Contact High Accuracy MPU LCD Display (Purple)

Overview & Features

Features. Can preset up to 9 impeller quantities, measure more accurately.. Hold maximum value, minimum value.. Selectable unit of the rotate speed between RPM and RPS.. With low battery indication and LCD display.. Auto off: switch off Automatically.. Combine the microprocessor technology and laser technology, more intelligent and reliable.. Mini size, handheld and portable.. Specifications. Display: 5 Digits LCD display. Units: RPM, RPS. Measuring range: 100 ~ 30000RPM, 1.7 ~ 500RPS. Resolution:. - 0.1RPM (100 ~ 999.9RPM), 0.1RPS (1.7 ~ 100RPS). - 1RPM(1000 ~ 30000RPM), 1RPS(100 ~ 500RPS). Accuracy:. - +/- (0.1%n + 5d) RPM; (100 ~ 9999.9RPM). - +/- (0.02%n + 2d) RPM; (10000 ~ 30000RPM). Sampling rates: 1/Sec. Number of impeller setting: 1 ~ 9. Time base: Quartz crystal. Circuit: Exclusive one-chip of microcomputer LSI circuit. Detecting distance: 10 ~ 40cm / 3.9 ~ 15.7in. Auto power off: 10 Minutes idle. Operational condition: -10 ~ +50 Degree Celsius; 14 ~ +122 Fahrenheit degree; 10% ~ 90% RH. Storage condition: -20 ~ +60 Degree Celsius; -4 ~ +140 Fahrenheit degree; 10% ~ 75% RH. Power supply: 3 * 1.5V AAA (LR03) (Not included). Product size: 14.3x5.5x2.2cm. Product weight: 72g (Without batteries)..

Technical Specifications