If I buy a T210 or T215 and want boat speed and depth will I need anything other than the transponder and the T210? If so which transponder?
Thanks,
Chris
Tom - Raymarine - Moderator
07-29-18, 10:59 PM
Chris,
The Hull Transmitter (T121) is the device which connects the speed/depth transducers (T911 and T912 or T910 for depth/speed in one) to the wireless Micronet network.