This campaign has now ended. However you can still register your analyser via the form below. If your analyser is elligible, you will get a reminder 1 month before your service is due.* *Testo 300 and new testo 327,320 and 320B analysers bought between 1st September 2020 and 31st December 2020 are elligible. From participating Testo distributors only.