... gauge, paint thickness gauge, thickness meter, thickness tester, ultrasonic thickness tester, paint thickness meter, coating thickness meter, thermometer, ... Highly sophisticated inductance sensor * Built-in lithium ion rechargeable battery and control Circuit with high capacity * Small in size ... 1μm if reading ≥100μm Power Li-ion battery: Rechargeable Operating conditions: Temp. 0~5 Humidity <80 ...