The UV 41HE high sensitivity flame detector responds to UV radiation from a flame and provides a simulated ionization signal to the T600 flame safeguard. The UV 42 flame detector responds to radiation and provides a 230 VAC signal to the second flame detector input of the T600. The UV 41HE and UV 42 are CE listed, CSA certified, FM approved and are only for use with T600-series flame safeguards. Both UV scanners are suitable for intermittent operation. For use in continuous operation applications, the UV 4x EM 1/1 self-check shutter module can be paired with either detector.