Industrial Honda engine has low Oil Alert® shutdown protection and Honda's QUIETEST engine muffler. Only 6% total harmonic distortion for use with voltage-sensitive equipment like computers. Maintenance-free, brushless design. Easy-access control panel. Circuit breaker protection. 6.5 gallon tank powers generator for 13.4 hours @ 1/2 load, 9.2 hours @ full load. Compatible with Reliance transfer switch.