Seaward test n tag pro printer label roll seaward 339a945 which seaward pat tester is best for you help me decidethe seaward 339a945 is a roll of test n tag pro pat testing printing labels each roll contains approx 400 thermal portable appliance testing labels with a resistant finish measuring 52 x 25mm in size the labels are for use with the test n tag pro pat label printer alongside the apollo series of pat testers seaward 339a945 tnt label rolls 52x25mm x400