Veeder Root 330161-003 CSLD SEM, TLS-300 tank monitor, 6 month warranty

A SEM is the black “chip” or “key” that is plugged into the CPU board. TYPE 1-003

Pulled from a working TLS-300 and we'll guarantee it for six months

Stock photograph

The warranty does not cover physical damage by installing the SEM backwards which results in broken pin(s) on the SEM. The diagnostic paper included was printed using this SEM proving the SEM was working when tested.

Doc Boehme
Bottom Line of MN Inc
Providing gas pump repair parts since 1993