Contact Measurement Digital Tachometer 50-19999RPM Speed Meter Contact Tach RPM Meter with 100 Groups Data Logging without Batteries

General specifications
1. Rotation speed display is five digit LCD number with maximum of
19999
2. Display 0 below 50 RPM
3. Measurement mode 0--5
4. Display voltage lower than 4.5V when batteries are low
5. Dimension: 155mm x 60mm x 27mm
6. Weight: 120g
7. Power supply: 4 x 1.5V SIZEAAA battery
8. Auto off time is 30 sec

LCD symbols description
1. Signal symbol
2. ldler wheel size symbol
3. Low battery symbol
4. Maximum measurement mode
5. Rotation speed reading
6. Minimum measurement mode
7. Storage state
8. Storage number
9, Average measurement value
10. Rotation speed unit symbol
11. Speed measurement mode display

Package included:
1. 1 bare machine
2. 1 Operation Manual
3. 2 measurement idler wheels
4. 2 measurement touch tips
5. 1 lengthening bar

Measuring operation instructions
Warning:
When measuring, please keep a safe distance from high-speedrotating objects to avoid machine damage or personal injury