I've been asked to source and supply a portable transmitter for a client to carry around, it's main use would be to discreetly summon the PPO (for example if they were in a meeting). Have looked at a few websites (such as some of the child GPS trackers) and am wondering if any members have any recommendations? I would say it needs to be RF and SIM card based as a must is the ability to work indoors. Thanks in advance.
Sent from my iPad using Close Protection World
Sent from my iPad using Close Protection World