You can now register the warranty for your TPS instrument, sensor or accessory on-line. Simply complete the details below and click the 'Submit' button at the end. .
. The serial number is written on a barcode label, usually on the back of the instrument. It is one letter followed by four numbers, e.g. R1234. The serial number is also displayed by the instrument when it is switched on (not the pH Cube). The C-Tick conformity sticker, with ACN 009 773 371, is NOT the serial number.