If you need to get support for your Cirrus instrument, one of the first pieces of information that we will need is its serial number.
Every instrument that we manufacture has a unique serial number and this is used to track the product throughout its life.
The serial number is in different places for different products, and details of how to find the serial number are shown below. Please click on the image to enlarge it.
Optimus/Optimus+ & Trojan 
Optimus/Optimus+ & Trojan serial number found on the General View on the instrument’s display 
CR:120A doseBadge5 
CR:120A doseBadge5 Dock 
CR:120A doseBadge5 Control Unit (Wand) 
CR:110A doseBadge 
CR:110A doseBadge Charging Dock 
CR:110A doseBadge Reader 
CR:511E & CR:512 Acoustic Calibrators 
CR:514 & CR:515 Acoustic Calibrators 
CV:31A Revo 
CR:800 series 
CR:260 series 
SoundSign