Patent product, Integrates the highly reliable MEMS sensor Precise, Durable, Accurate (reading), free from frequent regular calibration.
Large measurement range: up to 13,000 m (42,000 ft);
Barometric unit can be switched between mmHg/inHg/mb;
Precise indication: long pointer rotation a circle represents 100 meters in a 3 pointers 10000m model;
Easy adjustment: adjust barometric pressure via button instead of knob, simple and straightforward;
Digital-displayed barometric pressure with big and clear digits and adjustable lightness;
Error can be corrected: no need to be returned to the manufacturer or checked with a specific instrument. After years, when the pressure-sensitive component in the indicator appears small drift, the indication error can be corrected;
Super simplified variety and specification, thanks to features including high precision, large range via the sensor and switchable barometric unit.
Ответ:The altimeter uses the static line for function. If power is lost, you will lose power on the led display portion that displays the barometric number.