-keys Electronic Digital Vernier Caliper and Calliper Gauge
Features:
1) Auto power off
2) Zero setting at any position
3) Max. measuring speed: 2.5m/s
4) 8mm high LCD display
5) Zero setting at any position
6) Metric/inch interchangeable system conversion at any position
7) With data output interface
8) Display window uses special quartz glass, high scratch-resistance
9) Relative and absolute measuring type (ABS)
10) Tolerance setting type (TOL)
11) Speed, max. and min. follow-up measuring type (MODE)
12) Data holding type (HOLD)

Specifications:
1) Measuring range:
a) 0-100mm (0-4")
b) 0-150mm (0-6")
c) 0-200mm (0-8")
d) 0-300mm (0-12")
2) Repeatability: 0.01mm (0.0005")
3) Max. measuring speed: 2.5m/s
4) Power: 1 battery, 1.55V, type SR44
5) Working temperature: 5-40C
6) Influence of humidity: insignificant below 80% relative humidity
different scale films for your choice