This oscillator has a claimed distortion of 2 parts per million (0.0002%).
?
I only have access to test equipment that can measure down to 0.001% and this oscillator's distortion was lost in the noise floor of the test equipment.
?
The frequency was slightly off, well within specs but 1002.31Hz.
?
At $89 this represents an amazing value. Yes you can download their assembly manual and "roll your own" but I doubt you can achieve the performance of this unit.
?
Part of their magic is their PCB layout and hand selecting the frequency determining devices. It isn't worth my time and energy to try and copy their PCB and locate accurate parts.?