DS1993L-F5+ iButton Voltage Sensors meaning that it can use

meaning that it can use power contained in data signals of the 1-Wire® buses

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The cable terminates with a 2-pin male Molex connector

If you need more accurate readings around specific points

DS1993L-F5+ iButton Voltage Sensors meaning that it can useThe DS1993L F5+ is a memory iButton that runs through a 1 Wire system to track progress, record logging types, and store calibration constants. The DS1993L F5+ also has an operating temperature of 40C +70C with 4096 bits of read write memory. This iButton is resistant to dirt, moisture, and shock, which makes it great for mounting not only onto fobs and ID badges. It can also be mounted to DS1402 cables and circuit boards. For more information on this