Positioning collar
source：AOTOSO
System advantages
（1） Wide working temperature range: -30~55 ℃, high three proof level. Can adapt to extremely cold regions such as America and Kazakhstan; It is also suitable for rainy and humid places such as Britain and Singapore; Can also handle it on the Qinghai Tibet Plateau;
（2） Long working experience: Normal work for 1.5 years without manual maintenance, no charging required; (1.5 years is the standard working time, and the working years can be increased according to different project requirements)
（3） High positioning accuracy: 5~200M; (Slightly different depending on the surrounding environment)
