How it works.
both the transmitter/receiver are turned
on, the transmitter (cat figure worn on the child) sends a constant
pulse signal to the receiver (white unit on
keychain hold by the parent). The signal distance between the transmitter and
receiver is adjustable between 3 to 20 feet (1 to 7 meters) for the Child
Guard monitor. When the two units become separated beyond the
preset distance, the transmitter starts to beep to alert the
parent to take the necessary action.
transmitter/receiver set has a unique auto digit lock system
code assigned to it when they are assembled in the factory.
There are 16,777,216 digital codes so the probability of a
monitor holder encountering another monitor holder with an
identical digital code is highly unlikely.
usage, the replaceable lithium batteries have an estimated
eight months to one year life.
Guard can also be used as a "Purse Guard" to protect your
valuable from thief.