A-22 Buyer's FAQ
Q.What is the life expectancy of the HMOS sensor?
A.This replaceable board (SM-X) will have a life span of between 2-3 yrs. depending on it's placed environment and usage.
Q.How often does this monitor require calibration?
A.The manufacturer recommends a yearly calibration. The readings of all ozone monitors will start to stray over time and need to be corrected when possible. If protocols require you to verify the ozone reading periodically, you can purchase an OG-3 to generate and ozone level at approximately 0.1 or 1.0 PPM.
Q.Will I get a tracking number when my item ships?
A.For customers who chose [b]UPS[/b]: a tracking number is automatically sent via e-mail before the order leaves our warehouse. For customers who chose [b]FedEx[/b]: a tracking number is usually available if requested by either e-mail or phone. For customers who chose [b]USPS[/b]: tracking numbers are only created by USPS for select services, such as insured packages. We will be happy to available tracking information if requested.
