The Inficon 724-701-G3 Replacement Sensor is a 0.2 Oz/Yr accessory sensor designed for use with the D-TEK Stratus and D-TEK 3 gas detection systems. Manufactured by INFICON in the US, this sensor is specifically made for detecting flammable refrigerants. With a manufacturer warranty of 1 year, this replacement sensor is lightweight at 0.1400 lbs and compact with dimensions of 6.400 x 1.500 x 1.500 inches. It does not come with a battery included and does not have a California Prop 65 warning.