How long will a SmartSense sensor's battery last? BMPRO Customer Support December 14, 2021 02:55 The SmartSense senor battery will last one year on average depending on the operating temperatures. The battery will typically last longer in warmer environments. Related articles Is it possible to turn off the SmartSense sensor? How do I replace a SmartSense sensor's batteries? How do I remove the SmartSense sensor from a gas bottle without damaging the rubber pad? Is the magnet of the SmartSense strong enough to leave on a caravan gas bottle full time? How do I install and pair a SmartSense sensor? Comments 0 comments Please sign in to leave a comment.