Kidde Airsense Stratos Discrete Capillary Sample Point The sample point is used with flexible sampling tube to provide a discrete sample point. The sample point can be drilled with the required sample hole size. Aspirating smoke detection system is the network of sampling pipes that actively transport air from a protected area to the detector. ABS (Acrylonitrile Butadiene Styrene) is a homogenous material with good chemical resistance and high impact strength. Other beneficial features are its suitability for use at low temperatures (-40C) and its ease of jointing.