Citel TSP15M Outdoor Data Line DC Surge Suppressors are 24V direct mount transducer surge protectors with conduit mounting and wire termination. The DC line signal TSP15M devices operate within a -55°C to +85°C temperature range with a 15kA current rating. The Citel TSP15M Outdoor Data Line DC Surge Suppressors offer 1 pair protection, L-L/L-G protection modes, parallel or series connection options, and direct transducer mount.