Specification: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 + 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, error and display them by data in real time.Specifications: Condition: Brand NewMaterial: PlasticColor: WhitePackage Size: Approx. 23.5 * 19.2cm / 9.3 *7.6inPlug type: USVoltage: 90-240VPackageList:1 * Manual1 * Timegrapher1 * Timegrapher Sensor1 * PlugNote: Monitors are not calibrated same, item color displayedin photos may be showing slightly different from the real object. Pleasetake the real as standard.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.