The GasAlert90 is a practical solution to short term work projects. The GasAlert90 provides 90 days of continuous, maintenance-free operation from the day of activation. Maintenance-free, means no down time with no sensor or battery replacement and no calibration. Simply press the START/TEST button and the GasAlert90 is ready for use. The wide angled visual alarm bar will flash every 30 seconds to verify that the instrument is ON and functioning normally.
For more information, go to www.hvactool.com