GM8905 Digital Tachometer Range: 2.5-99999rpm Basic Accuracy: (0.1% n + 5d) Rpm, (1000 ~ 99999rpm)

Model: GM8905
Functional and technical parameters
LCD Monitor: five large-screen LCD display, character height 18mm
Unit: rpm
Range: 2.5-99999rpm
Resolution:
0.1rpm (2.5 ~ 999.9rpm)
1rpm (1000 ~ 99999rpm)
Basic accuracy: ± (0.1% n + 5d) rpm, (1000 ~ 99999rpm)
Laser power: CLASSⅡ 2-5mW
Sampling rate: 1 times / sec.
Test distance: 50-500mm
Time base: quartz crystal
Automatic shutdown: no key operation, the instrument will be turned off after 61s
Maximum, minimum, average, last measured value remains: √
Low Battery Tips: √
LCD backlight display: √
Memory function: √
Operating Environment: 0 ~ 50oC, 32 ~ 122oF, 10 ~ 90% RH
Preservation of the environment: -10 ~ 80oC, -14 ~ 176oF, 10 ~ 75% RH
Dimensions: 55.7 * 29.9 * 127mm
Weight: 106g
TEU Quantity: 60pcs
Standard box size: 43.9 * 35.9 * 30.3cm
Power: 2x1.5V AAA battery
With three silver-paper (200 * 12mm

 bruce