BK8115 GUN-Type Coating Thickness Gauge    Features:  1)CE-Mark approval  2)Portability and simplicity one-hand operation  3)2-point calibration  4)Display Back-Light feature  5)μm/mils user-selective  6)Auto power off function  7)Ferrous and non-ferrous materials meassuring  8)Data longging function capacity up to 225 samples  9)Warning beeper triggers by hi/lo limit settings  10)On-line display selects avg max min and max-min  Fast one point calibration for freguent measuring thickness use        Specifications:  Display: 3½ digit liquid crystal display (LCD) with a  maximum reading of 1999.  Low battery indication: The " " is displayed when the  battery voltage drops below the operating level.  Operating environment: 0°C to 50°C at <75% R.H..  Storage environment: -20°C to 60°C, 0 to 80% R.H.  with battery removed from meter.  Accuracy: Stated accuracy at 23°C±5°C, <75% R.H..  Auto power off: 30seconds.  Dimensions: 148mm(H) x 105mm(W) x 42mm(D).        Technical Data:  Range: 0 to 40.0mils (0 to 1000μm)  Resolution: 0.1mils/1μm  Response Time: 1 second  Accuracy:  ±(4digts) on 0 to 7.8mils  ±(10digts) on 0 to 199μm  ±(3% + 4dgts) on 7.9mils to 40mils  ±(3% + 10dgts) 200μm to 1000μm  The batteries not included package