Items

ox_inventory

Add this to ox_inventory/data/items.lua:

['gps_tracker'] = {
    label = 'GPS Tracker Device',
    weight = 1000,
    client = { image = 'gps_tracker.png' },
},

qb-core

Add this to qb-core/shared/items.lua:

gps_tracker = {
    name = 'gps_tracker',
    label = 'GPS Tracker',
    weight = 1000,
    type = 'item',
    image = 'gps_tracker.png',
    unique = true,
    useable = true,
    shouldClose = true,
    description = 'A Device For Tracking Player'
},