Feature:

1. EASY TO USE: Press the TEST key lightly to activate the infrared beam perpendicular to the tested object; Aim the beam at the rotating reflective strip and keep the distance between the two within 500mm.
2. SEMICONDUCTOR SENSOR: Measuring effective distance from 50mm to 500mm; Measuring range 3 to 100000RPM. Sampling time, 0.8 seconds (above 60 rpm).
3. VALUE LOCKABLE: Lock the maximum, minimum, and real time values during the measurement process; Gently press the MAXIMUM button to lock the maximum value; Press the MAXIMUM button again to lock the minimum value.
4. EASY CARRYING: With a small size and being lightweight as well, the tachometer can be easily carried for different scenes to use.
5. ABS MATERIAL: Made of premium ABS material, the meter is wear resistant, scratch and impact resistant, ensures a long term use.

Specification:

Item Type: Digital Tachometer
Mode: TA500A
Material: ABS
Measurement Method: Non contact (photoelectric measurement)
Measurement Range: 3 to 100000RPM
Accuracy: ± (0.05% FS+1 RPM)
Resolution:
RPM Less Than 10000: 0.1
RPM Greater Than or Equal to 10000: 1
Speed Display: 6 digit display, maximum 999999
Measurement Effective Distance: Approx. 50 to 500mm / 1.97 to 19.69in
Sampling Time: 0.8 seconds (above 60 rpm)
Automatic Shutdown: 15 minutes (can be manually turned off)
Operating Environment: -10 to 50 ℃, maximum 80% relative humidity, indoor altitude less than Approx. 2000m / 6561.7ft
Storage Environment: -10 to 50 ℃, maximum 70% relative humidity (with battery removed)
Battery: 1.5V AAA battery x 2 (without battery)

Package List:

1 x Digital Tachometer 

2 x Reflective Paper 

1 x Manual