Patent product, Integrates the highly reliable MEMS sensor Precise, Durable, Accurate (reading), free from frequent regular calibration.
Evenly allocated scale: accurate indication, easy to read;
Large range available: unlike the metal diaphragm structure, this gauge satisfies the need of pilot for steep haul-up and haul-down without exceeding the available range.
Ответ:The power and ground on the back of the unit are required because there is an electronic transducer inside the unit. Therefore, it will not function on static or pitot alone, and requires power.