# Micro tracker best placement
The tracker is resistant to water but must never be placed either fully/partially submerged in water or under the influence of high pressure water spray jets for significantly long periods of time. The warranty of the tracker is avoid if used incorrectly.
To get optimum radio performance and accuracy of your micro tracker, apply these rules when using it:
Orient the LoRa/GPS antenna to the sky to be in reach of LoRaWAN® base stations and GPS satellites.
Avoid contact of fewer than five centimeters with skin, magnetic and metallic objects.
Avoid strong radio interferences with a cellular phone, unless using BLE where a cellular phone must be in reach.