Features: 1. LCD screen shows the readings in real time.2. Portable size, easy to install and operate.3. Daily difference measurement: errormeasurement range is + 999 seconds / day, accuracy is 1 seconds / day.3. Swing measurement: in digital display, theresolution is 1 degrees, and the measurement range is 100 - 360 degrees.4. Polarization (frequency error) measurement:the value is displayed in milliseconds.5. The resolution is 0.1 milliseconds, and themeasurement range is 0 to 9.9 milliseconds. 6. The frequency diagram of the watch can bedisplayed in the LCD screen.7. The instrument will automatically calculatethe rate, amplitude, beat error and display them by data in real time.Specifications:Material: PlasticColor: WhitePackage Size: Approx. 23.5 * 19.2cm / 9.3 *7.6inPackageList:1 * Manual1 * Timegrapher1 * Timegrapher SensorNote: Monitors are not calibrated same, item color displayedin photos may be showingslightly different from the real object. Pleasetake the real one as standard..