All alcohol breath testers require re-calibration at recommended and regular intervals to ensure accuracy. This is comparable to resetting your watch against a time signal you know to be correct. Over time breathalyzer readings, like those of a watch, may drift. "Calibration" is the process of checking and resetting the internal settings of a breathalyzer by comparing and adjusting its test results to a known alcohol standard. "Calibration checking" is the process of verifying that the Breathalyzer is reading.
Without exception, all professional and personal breathalyzers must be re-calibrated from time to time to ensure accuracy.
It is generally true that fuel cell breathalyzers, like the LifeGuard, hold calibration longer than do the inexpensive semiconductor (tin oxide) breathalyzers. Manufacturers provide specific recommendations for recalibration intervals in their device manuals.
The DOT approved EASYCAL® automatic calibration station from Lifeloc Technologies automates calibration, record keeping and gas management for professional breath alcohol testers.
There are two methods of calibrating a precision fuel cell breathalyzer, the Wet Bath and the Dry Gas method.
Lifeguard comes from the factory fully calibrated. It is recommended that the LifeGuard be recalibrated annually. Unlike inexpensive breathalyzers that often drift out of calibration inside 6 months, the LifeGuard offers calibration stability Unlike cheaper semi-conductor units which contaminate very quickly and frequently need recalibration after as few as 300 tests, the LifeGuard is not limited by number of tests performed on the device.
The cost of a Lifeguard calibration service is $25.00 per calibration. Included with calibration, your LifeGuard is also run through a series of diagnostic and performance tests to ensure it is in peak operating condition. Details are in the LifeGuard Operating Manual included with your purchase.
1. Print and complete the Calibration Order Form or enter the required information through the on-line shopping cart.
2. Ship the unit (postage prepaid) to the following address:
LifeGuard Calibration Department
Lifeloc Technologies, Inc.
12441 West 49th Avenue, Suite 4
Wheat Ridge, Colorado 80033
To ensure delivery and tracking of your unit, we recommend that you request a delivery confirmation with your shipment.
3. Enclose payment along with the calibration order form (payable to Lifeloc Technologies, Inc.) and the unit to be recalibrated. Include your return shipping address.
4. Upon receipt at the factory, your LifeGuard will be recalibrated, tested and shipped back to within 10 business days.
5. For your records, you will receive a "certificate of calibration" with your unit.
Q. What happens to my unit if I don’t get it calibrated every 12 months?
A. As with any alcohol testing device, if the LifeGuard is out of calibration it may not provide accurate breath alcohol content readings. The BAC reading may be either higher or lower and you will not know which.
Q. How do I know when my LifeGuard requires calibration?
A. We recommend you have the unit recalibrated once every 12 months.
Q. Can I recalibrate the LifeGuard myself?
A. No. You need the use of advanced breath alcohol simulators and factory trained technicians to correctly perform a calibration.
Q. Do you recalibrate other personal breath alcohol testers besides LifeGuard?
Q. My older semiconductor based breathalyzer needs calibration much more frequently than you do for LifeGuard, especially under heavy use. Why?
A. LifeGuard is a precision fuel cell breath tester. Unlike inexpensive semiconductor based breathalyzers which are prone to fail after heavy use or after infrequent use, the LifeGuard is engineered around a proven and reliable technology – the Lifeloc Platinum Fuel Cell
Q. If I did not purchase LifeGuard directly from your website, can I have you recalibrate my device?
A. Yes. Simply follow the procedures described above.
Q. Is calibration included in the one-year warranty?
A. No. The warranty is limited to any defects with the unit, and does not include routine maintenance such as calibration.