Wireless Clocks and Synchronized Clock Systems | PoE ... Sapling Synchronized Clock Systems Sapling provides a wide range of master clocks and synchronized clock systems, which include Wireless Clocks, IP PoE Clocks, Wi-Fi Clocks, Wired Clocks, and our TalkBack Wireless Clock System. Sapling offers school clocks, hospital clocks, elapsed timers, and clock systems for manufacturing plants, business complexes, transportation facilities, hotels and ...