How much do the sensors weigh? Follow Arccos Smart Sensors weigh only 7 grams -- nearly 40% less than the previous Generation 1 sensor. Generation 1 sensors weigh approximately 11 grams each. Related articles Can I replace the battery in an Arccos Caddie Smart Sensor? Do Arccos Caddie sensors affect my swing? How do I attach an Arccos putter sensor to a SuperStroke putter grip? How do I purchase additional sensors? How long should I expect my Arccos Smart Sensors to last?