LNHHG Surface Roughness Gauge Ra Rz Rq Rt Portable Surface Roughness Tester Machine 20-hour Battery Life, Auto-sleep

LNHHG

Multi-parameter measuring: Ra,Rq,Rz,Rt; High accuracy inductance sensor; 128×64 dot matrix OLED displays all parameters and graphs; ARM processor chip is used to control and process data with high speed and low power consumpt; Built-in lithium chargeable battery and control circuit have high capacity, without memory effect. Consecutive work time is longer than 20 hours;