https://www.ebay.com/sch/i.html?_nkw=Allegro+Industries+9872+02B+Co+Monitor+For+Wall+Air&_sacat=0&_dmd=2

Allegro Industries 9872-02B Co Monitor For Wall Air

Regular price
$1,303.00
Sale price
$969.00

Allegro Wall-Air Carbon Monoxide Monitor is ideal for ambient air pumps and uses 115 VAC to 9 VDC power adapter for continuous operation. Monitor includes electrochemical, replaceable sensor, male luer as well as liquid crystal display and activates an audible alarm when the concentration of CO exceeds 10 ppm. Features Carbon monoxide monitor Uses 115 vac to 9 vdc power adapted Liquid crystal display Male leur