Features:
Can preset up to 9 impeller quantities、 measure more accurately.
Hold maximum value、 minimum value、 and the last measured value.
Clearly show the operation instruction and unit symbols.
Automatic range conversion and maintain measurement data automatically.
Selectable unit of the rotate speed between RPM and RPS.
With low battery indication and LCD backlit display.
Automatic power off after being idle for 10 mins.
Combine the latest 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 ?Ħ (0.1%n + 5d) RPM; (100 ~ 9999.9RPM)
?Ħ (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 * 1.5A AAA (LR03) (Not included) Product size Approx.14.3 * 5.5 * 2.8cm / 5.63 * 2.17 * 1.1in Product weight Approx. 72g / 2.52oz (Without batteries) Package size Approx. 14 * 4.5 * 22cm / 5.51 * 1.77 * 8.66in Package weight Approx. 151g / 5.33oz (Without batteries)
Package includes:
1 * Tachometer
3 * Reflective tape mark
1 * Instruction manual (English)"
