12kw silent type generator air cooled Deutz engine: F2L912D alterator: stamford, leory somer, ... metersAmbient air temperature: ≤40 centigradeRelative air humidity: ≤ 90%Controller system1.Standard control panel, including voltmeter, fequency meter, ampere meter,water ... with ATS electric control cabinet, including circuit breaker, LCD or LED auto controller, indicating lamp, transfer switch,etc.. ...