Proper charging voltage is important to the lifespan and performance of your battery. Featuring a temperature operation range from -4°F ~ 176°F / -20℃ ~ +80℃, the sensor will be important in the overall lifespan and performance of your house battery bank by applying higher charging voltage to counter the increased resistance due to low temperature. Simply place the temperature sensor on top or on the side of the house battery bank, and the charger will take care of the rest with temperature compensation. Enhance your battery charging system with a Renogy Temperature Sensor today!