Introduced in the mid 1990's with the first lockit box the Clockit family has become an established system for mission critical mobile time code and synchronization tasks and was continuously refined.
Based around a very accurate, temperature compensated crystal oscillator (TCVCXO) the system can be calibrated in the field to a reference deviation of less than .2ppm which corresponds to a drift of less than 1 frame per day between any given numbers of autonomously running units. This allows for a synchrony as otherwise only found in studios, however, without hard-wiring or relying on problematic RF transmission. Speaking for itself, Clockit units support all smpte TC modes, including pull up/down and drop rates, time code over ASCII and depending on the model midi TC and the revolutionary Ambient Clockit Network protocol (ACN).
Acknowledging this superior award winning system as a de facto industry standard a growing number of manufacturers opts for integrating this technology into their products on an oem basis. As a result these units are fully compatible with the Clockit system and up to par in terms of features and accuracy bypassing the necessity of external synchronization.