Ultrasonic Thickness Gauge GM100 * Measuring range: 1.2 to 220 mm (steel) * Accuracy: ± (1% H + 0.1) mm * Resolution: 0.1mm * Velocity range: 1000 ~ 9999m / s * Working frequency: 5MHz * Pipe measurement limit: Φ20 * 3mm (Steel) * Auto zero gage calibration, system errors can be corrected * linear automatic compensation, over the full range using computer software to probe the nonlinear error correction data to improve accuracy * Storage / data query / data delete function * Measuring the speed of sound: direct measure its speed of sound * Low power indication * Auto-off function * LCD backlight function * Warranty according to the specimen thickness: 12 months TT220 Coating Thickness Gauge Specifications Probe Type: F Measuring principle: magnetic induction measuring range: 0-1250um lower limit of resolution: 1μm (10um following is 0.1um) probe connections: Integrated indication error: one-point calibration (um): ± [3% H + 1] point calibration (um): ± [(1% ~ 3%) H + 1] Measurement conditions: minimum radius of curvature (mm): Convex 1.5 | 9 base minimum diameter concave area (mm): ф7 minimum critical thickness (mm): 0.5 Temperature and humidity: 0 ~ 40 ℃ | 20% RH ~ 90% RH Statistics: average, maximum (MAX), minimum (MIN), the number of tests (. NO), the standard deviation of work: direct mode (DIRECT) and group mode (Appl) Measurement: continuous measurement mode (CONTINUE) and single measuring mode (SINGLE) set upper and lower limits: No Memory capacity: 15 measurements print / connected to a computer: Optional printer / can be connected to the computer shutdown mode: Auto Power: two 3.6V NiCad battery Dimensions: 150 × 55.5 × 23mm Weight: 150g gage, gauge, Golden Section instruments provided by the Qingdao Branch of the Instrument Co., Ltd. Qingdao Branch of the Instrument Co., Ltd. (www.qdjk17.com) strong, credible, in Qingdao, Shandong analytical instruments industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Jinke instrument into the brilliant and you work for a better future!