The extension unit TVOC-2-E3 can be assembled on the TVOC-2 main unit to increase the number of detector inputs. There are 10 detector inputs per extension unit E3 and up to 2 extension units can be added to the main unit, creating 30 detector inputs in total. Only TVOC-2-DP60 60 m cable detector can be used with the E3 extension unit.
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