The Traffic Tally 2, Traffic Tally 4, & Traffic Tally 6W (TT-2, TT-4 & TT-6w) model counters are designed to divide by two automatically, so as not to get two counts for on
It is always a good idea to update the Firmware on the TT-6 or TT-8 Wireless (TT-6w / TT-8w) before you put them back out for there next service. In fact I would update the firmware p