I don’t think the i3/i4 detectors meet the new UL 268 7th edition requirements. The i3 datasheet appears to be over a decade old, and the i4 datasheet was last modified in 2017. Neither datasheet specifically mentions the 7th edition of UL 268, as opposed to Select series datasheets (and the SS-Series datasheets above) listing 7th edition compliance as one of the first features.