One step 50 x Ultra Early

These strip tests are at a sensitivity of 10miu and work to an accuracy level of 99%. They can be used up to 6 days earlier than a standard pregnancy test kit. Features and Benefits: They are 2.5mm wide but are the same quality (just thinner) as our best selling NHS tests that are ...These strip tests are at a sensitivity of 10miu and work to an accuracy level of 99%.

They can be used up to 6 days earlier than a standard pregnancy test kit. Features and Benefits: They are 2.5mm wide but are the same quality (just thinner) as our best selling NHS tests that are wider (3.5mm). One Step are the number one best selling online pregnancy test in Europe 5 different languages – English, French, German, Italian & Spanish.