This is a replacement CR2450 3V lithium coin cell battery for use with a wide range of auto darkening filters.
Compatible Tecmen ADF models include
- FreFlow V1 (ADF800S)
- FreFlow V3 (ADF950 iEXP)
- TM5, TM16, TM17 (ADF820S)
Please note that the auto darkening filters for Freflow V1 and V3 models require 2 batteries which fit either side of the cartridge.