Nemoto NAP-505 Carbon Monoxide Sensor
NAP-505 is a compact electrochemical carbon monoxide sensing element intended for residential CO alarm integration.
Manufacturer: Nemoto
Technical specifications
| Gas | CO |
|---|---|
| Measurement range | 0–1,000 ppm |
| T90 | Within 30 s |
| Design life | Over 7.5 years (manufacturer) |
| Component certification | UL 2075 component recognition reported by manufacturer |
Component recognition is not finished-alarm certification; use current manufacturer documents and verify final instrument design.
NAP-505 — CO cell life and calibrated 1,000-ppm span
Nemoto’s European model page identifies NAP-505 as a three-electrode CO cell with 0–1,000 ppm measurement range, 2,000 ppm overload, 40 ± 10 nA/ppm sensitivity and T90 under 30 seconds. Its current European literature describes a 7-year warranted service life; the older lifespan value shown in product summaries should not be treated as a universal lifetime guarantee without the relevant dated document.
The CO cell produces a low-level current requiring a stable analog front end, ambient-temperature treatment and end-of-life diagnostics in the finished alarm. Nemoto notes a sensor QR label with calibration information and relevant component UL listing; neither substitutes for validation or approvals of the complete residential detector. Check production region, component revision and installation instructions when transferring designs between NAP-505 and NAP-508.
Manufacturer reference: Original model specifications. Check the exact model revision and current technical document.