A local Safety house and the manufacturer rep highly recommended this monitor. We purchaed many monitors from this vendor as they were less expensive. We coudln't figure out why our monitors were not responding to alcohols. Call the manufacture for help and they said it was bad gas monitors (hard to believe). We wanted to return off the bad gas monitors. When we called this vendor they told us the explosive sensor we purchased ws the incorrect verson for alcohols. They recommended us to use this unfiltered sensor. Worked like a charm. Unfortunitly we couldn't return the other sensor for credit as it was used. Made a call to the manufacturer representative and all we got was a sorry. This vendor knew more about the sensors and monitors than Honeywell. Glad we found this supplier!
Bad monitor? Correct Sensor? 
