WESPEC Original BX50H PLUS Engine Control Box Engine Protection Emergency Stop DC Supply DC 8~36V Operation Temperature -20-65℃ Storage Condition -40-85℃ Dimension 298*212*178mm Weight 2.9kg Sensor Resistance 0~1000Ω Summary GM50H box is one light and low price-orientated module used for demonstrating engine RPM,water/oil temperature, oil pressure, battery voltage and Hours. The users can adjust and set the parameters by the button on the front face in order to meet the