The new SBT 3000 Series not only allows a facility to receive the most accurate time possible, but each clock has the capability to report its status back to the master clock. This is done through our TalkBack Technology - each clock can provide its signal strength, its battery life and even information about the segments on the display. The SBT 3000 Series is a wireless clock system that operates on either Sapling’s 915 to 928MHz or 2.4GHz (International Use Only) frequency–hopping technology. The digital wireless clocks have the ability to receive and retransmit the signal to neighboring clocks, ensuring an accurate time display throughout a facility. This series also includes the option to add an Elapsed Timer (3200 or 3300 series only) in order for the digital clocks to conduct a count up or countdown and can easily interface with existing systems.