在 2010-09-30四的 18:20 +0100，Angus Hedger写道： > 183M (ish) less without LoS > http://www.babysecurity.co.uk/products/2077/Loc8tor-Plus-Homing-Tracker-Locator-%26-Personal-Panic-Alarm.html >(UK link) Thanks a lot, this device look like exactly what I need. Too bad the very product, produced in China, are not sold in China. I had to try look for similar devices.