ERAY Coating Paint Thickness Gauge Meter Digital Handheld for Car Automotive with Backlight LCD Display (Grey) Product Code: P1 Measuring Range: 0 to 1400um Units: um, mm, mils Accuracy:  (3%+1um) Resolution: 0~99.9 um(0.1um), 100~999um(1um), &gt;1000um(0.01mm) Calibration: 1 ~ 4 point and zero calibration Data Group: 1 direct group (readings not be stored to memory), 4 general group (Max 320 readings can be stored); Note: Each group have individual statistics, alarm limit settings and calibration Alarm: User can set the high/ low alarm limit; Alarm icon displayed on LCD when over the limit Min Curvature Radius: Convex 5mm and concave 25mm Min Measuring Area: Diameter 6mm Min Thickness of Substrate: 0.2mm(Probe F) and 0.05mm(Probe N) Max Measuring Rate: 2 readings per second Power Supply: 1.5V AAA battery*2 Dimensions: 118x52x23 mm/ 4.33&#034; x 2.09&#034; x 0.94&#034; Weight: 92g/ 3.24oz 1 x Coating Thickness Gauge 1 x Aluminium Substrate 1 x Iron Substrate 5 x Standard Foil 2 x AAA Battery 1 x USB Cable 1 x Software 1 x Tool Box 1 x User Manual 128*128 dot matrix LCD display, standard menu operations. 2 measure mode: single and continuous. 3 probe mode: auto, magnetic and eddy current. 2 group mode: direct (DIR) and general (GEN), readings will be lost when power off in direct mode, and not be lost in general mode. 80 readings can be stored for each group. User can recall, delete specified readings, or delete group readings. User can recall and delete specified readings easily. <span class="a-text-bold">Zero Calibration: </span>Recommended if measuring errors up to  (2%+1um) <span class="a-text-bold">Multi-point Calibration: </span>The permitted measuring errors will be max.  (1~2%+1um) It is ideal for manufactures and their customers, offices and specialists, paint shops, chemical, automobile, shipbuilding, aircraft industries and light and heavy engineering. It is also suitable for laboratory, workshop, and outdoor use. With a tool box that you can carry it to anywhere. <span class="a-text-bold">Single Measure Mode: </span>Place the probe on sample vertically and rapidly, and after one beep, raise it rapidly. <span class="a-text-bold">Continuous Measure Mode: </span>Place the probe on sample, and don&#039;t raise the probe, the measurement will be done continuously in a certain cycle. It is ideal for manufactures and their customers, offices and specialists, paint shops, chemical, automobile, shipbuilding, aircraft industries and light and heavy engineering. It is also suitable for laboratory, workshop, and outdoor use.