Robinair TIF8900 Combustible Gas Detector<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Solid-state sensor technology， long life， and precision</li><li>Adjustable sensitivity levels; as low as 5ppm</li><li>Audible Geiger Counter signal</li><li>Rechargeable battery and charger included</li><li>Made in the USA</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41IPUXV5QGL.jpg" noproxy>