... *3sets batteriesdata store/recall function: 10 record dataUltrasonic Thickness Gauge AR860 Measuring Range1.0 to 300.0mm(Steel)Accuracy±(0.5 ... ±0.2VPower3*AAA 1.5V BatteryAccessories:*1xUltrasonic Thickness Gauge SE-AR860*3xsets batteries Power: 1.5V AAA*2x5MHz probe with Φ10mm ... *G.W of the carton: 14.7kg Ultrasonic Thickness Gauge AR860+