Bullet_point: ["BTS Mounts on Terminal Post of Battery in a Bank or on the Side of Battery and Measures it's Temperature. Sends Precise Information to the Charger which Automatically Adjusts Voltage to Help Ensure Full Battery Charge Depending on the Ambient Temperature of your Battery Installation.", 'Designed for use with TRUECharge2 battery chargers.', 'One Year Warranty', 'Original Xantres Long 26 Foot RJ-11 (male) Phone Connector', 'Sends precise information to the charger or charge controller', 'TRUECharge2 Battery Temperature Sensor (BTS)', 'The BTS mounts on a terminal post of a battery in a bank or on the side of a battery and measures its temperature.'] (Page 1)