... overvoltage, undervoltage, flow, low oil pressure, high water temperature, emergency stop, speed, frequency overrun, boot failure fault ... voltage, charge failed, flow, low oil pressure, water temperature alarm function of higher trailer.The use of animation icon ... 70V (maximum)Magnetic (speed) sensor frequency input range: 10000Hz (maximum)Relay output: VCC / 2A DC.Operating temperature: -30 °C ~ 70 ...