Why this one
The cheaper FA6813 also qualifies through owner evidence. No independent comparative gas-exposure test was verified for this model.
Specifications and sources
What independent testers found
What owners report
Repeated reports of straightforward installation and testing, including a recent report of a loud test signal and easy AA replacement. Some owners mistakenly call it a CO2 monitor; those descriptions are not technical evidence.
Limits and cautions
- Maker documents support domestic use; do not infer boat suitability from the retailer's inconsistent standards field.
- The maker gives a three-year warranty excluding replaceable batteries in the FA6813 manual.
- Product-specific Home Delivery InStock and Add to basket were both observed, but no Eircode or checkout test was performed.