Feature:1. The instrument will automatically calculate the rate deviation, amplitude, error, and display them by the data in real time.2. The sampling period can be selected by 2 seconds, 4 seconds, 8 seconds, 12 seconds, 20 seconds, 30 seconds, 60 seconds, and the average value of corresponding period will be regarded as the exact value of the watch.3. For the conventional, the instrument can automatically respond; for the special be-at, can manually selects.4. The frequency diagram of the watch can be displayed on the LCD screen.5. According to different watches, the instrument will automatically adjust the optimal signal level during the test.Specification:Specifications:Main material: metalColor: grey+blackMeasuring possibilities: rate deviation, amplitude, beat errorRate deviation measurement: the ranges of deviation is 999 sec/day, accuracy is 1.0 sec/dayAmplitude measurement: numerical display in degrees, resolution is 1, measuring ranges is 100 to 360Measuring for the error (frequency error): numerical display in milliseconds. Resolution is 0.1 milliseconds; the measuring ranges is 0-9.9 msMeasuring position: 1 to 6 positionsSampling periods: 2/4/8/12/20/30/60 secondsLift angle: 30 to 70, default is 52Line length: 196 pointsLanguage: Chinese, English, JapaneseDisplay dimension: 98 * 34mm / 3.9 * 1.3inItem size: 172 * 114 * 40mm / 6.8 * 4.5 * 1.6inItem weight: 1400g / 3.1lbPackage size: 200 * 150 * 80mm / 7.9 * 5.9 * 3.1inPackage weight: 1483g / 3.3lb.Package List:1 * Timegrapher1 * Microphone1 * Power Cable1 * User Manual