How to read Kidde fire extinguishers serial numbers

Reading it yourself

• Ten digits on the bottom of the cylinder. The first four are the time of day, the next three are the day of the year, the next two are the year, and the last one is the assembly line.

  Example: 1205322062 was made in 2006.

This is the date the unit was made. It was usually installed soon after, but it can be later. If a serial doesn’t fit any of these patterns, look on the label for a printed manufacture date.

Sources

Checked in October 2026.

• How to find the manufacture date on a fire extinguisher, Kidde
• Where to find the serial number on a fire extinguisher, Kidde