GZAIR SA104 handheld Carbon Monoxide detector review.

https://pixel.xin/2Iupjx
https://www.gzair.top/product/carbon-monoxide-detector-sa-v1000/ .
Electrochemical sensor with a 5-year life

Continuous 9-month runtime with battery-powered

Visual alert, audible alert, real-time carbon monoxide concentration display

Easy to set and use with simple one-button operation

Designed primarily for Vehicles(i.e. trucks, SUVs, buses, aircraft, boat)