Do you have a question about the Fakopp TreeSonic and is the answer not in the manual?
Connect start sensor to timer, ensure proper orientation and lock connector. Handle metal part only.
Identify start (long, flat) and stop (short, cube) transducers. Do not interchange them.
Hit start transducer to power on. '9999' indicates success; next hit shows transit time.
Unit automatically powers off after 30 seconds of inactivity to save battery power.
Recommended distance between transducers is 1 meter, marked on the start transducer cable.
Average 3 readouts; standard deviation should be less than +/- 1.5 microseconds.
Handle transducers with care due to sharp spikes. Use protective tube. If probe falls, step back.
Replace battery when 'BAT LOW' appears or unit auto-shuts off. Open compartment with screwdriver or door.