The MTG-9900A timegrapher is a new generation timegrapher with top configuration and optimal performance. Equipped with digital color LCD touch screen. automatic microphone and mini heat sensitive printer. Test and display the beat noise, amplitude and beat error of normal mechanical watches and coaxial watches. Beat rates from 12000, 14400, 18000, 19800, 21600, 25200, 28800, and 36000 b/h can be tested. The beat rates are automatically identified by this tester in just a few seconds or you can change and manually set the beat rate to be tested. The lift angle is pre-set to default value of 52 degrees for normal watches and 38 degrees for coaxial watches. If you know the correct lift angle of the watch you are testing you can manually set the correct lift angle to get the most accurate Amplitude measurement possible. Uses the automatic microphone, can be manually rotated by hand or by program.

Single phase power supply AC100V-240V (power consumption is about 8 watts)
Displays daily rate in seconds per day (+/-300 s/d), Accurate to (+/-1 s/d)
Amplitude: 90 - 350 degree, allowable tolerance (+/-3 degree)
Beat error: 0-4.0ms, allowable tolerance (+/-0.1ms)
Life angle: 20-70 degree, ex-works value: 52 degree