Im not sure..it should say on the pack, however, i bought the new First Response (6 days early one) and there was zippo on the subject on the leaflet, which really annoyed me as i was wondering nthe same thing..grrr.
I know of a website that lists all the most used hpt but its American so it doesnt include tesco's. But it lists the sensitivity of them all.
Sorry im no help..my hunch would be to say yes, ive got them as well btw
