CANNON SPEED-N-TEMP SENSOR Cannon Speed-N-Temp SensorThe Speed-N-Temp Sensor operates as part of the Bottom Line NCC and Cannon Mag 20 DT System. The Speed-N-Temp Sensor senses the speed and depth of your lure and the water temperature and light level at your lure and displays the information using large, easy-to-read numbers on the screen of the Tournament NCC 6300. Sensors measure the information once a second to making it easy to find best place put your lure. The Speed-N-Temp Sensor uses the downrigger cable to transmit the data up to the NCC 6300, so no extra or monitors are needed. And, the Speed-N-Temp Sensor can operate for up to 200 hours from one 9-volt battery.