... above sea level: ≤1000 metersAmbient air temperature: ≤40 centigradeRelative air humidity: ≤ 90%Controller system1.Standard control panel, ... gauge, oil temperature gauge, oil pressure gauge, AMF control module,oil level indicator, emergency button,preheating button, battery ... ) uses update technology, which can be automatic control for on-off electricity, remote monitoring, automatic parallel ...