Air Systems CO91-14LAC carbon monoxide detector - $250 (Pearland)
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Works good but needs calibration. It costs about $20 to calibrate. Good machine for any masked filter work or confined space inspection. Takes 120V and has 9V backup battery
Retails for about $1500 new.
A portable airline monitor connects easily to a breathing air filtration source or ambient air pumps and monitors the air for CO or CO/O2, depending on the model. An audible alarm (95 dBA) and light will activate when the CO level exceeds 10 ppm (5 ppm Canadian). Used in the closed and upright position, an external alarm and lights signal the user if there are dangerous CO or CO/O2 levels.
Carbon Monoxide (CO) Monitor, Portable Product Type, 9 V Batteries, Grade-D Breathing Air Filtration
Operates on 9-volt batteries, 8-16 VDC, and/or 115 VAC
Connector kit includes 1/4 in Industrial Interchange coupling supplied on 5 ft hose
Standard alarm jack allows for connection to remote alarm devices
Standard version allows air pressures up to 150 psi
Available in high pressure version up to 6000 psi for fill compressors
Optional high intensity alarm
Available in CSA approved Intrinsically safe version, 9 VDC only