Gatekeeper Systems
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Gatekeeper Systems, Inc.

GS1 Tech Specs

GS1 Wheel

Wheel
Standard 5-inch, non-marring, conductive (anti-static) wheel with rubber tread and sealed precision ball bearings.

Power Source
One 2/3 A, 3-volt lithium battery.

Electronic Components
One-time digital programmable CMOS (low power consumption) microprocessor.
 

Central Transmitter

Power Supply
Utilizes 32 volt Uniform Laboratories (U.L.) approved Alternating Current (A.C.) transformer drawing less then 20 watts.

Microprocessor
Digital circuitry, programmed in the factory and compliant with FCC regulation 15 (no testing or certification required).

Signal Output
Signal frequency is below 9 KHZ and complies with FCC regulation part 15.

Surge Protection
The systems contain a built-in Surge Protector, which helps reduce Electrostatic Discharge from power lines and lightning strikes.

 

CartKey

Power
Power is supplied via a 2/3 A, 3 volt, Lithium battery identical to the one installed in The GS1 Wheel.  The battery is easily replaced.

Frequency
Programmed to send a signal below 9KHZ, VLF, to be compliant with FCC regulation part 15.

 

Perimeter Antenna

Cable
14-gauge, double insulated wire, embedded directly into the asphalt via ¼ -inch wide by 1-inch deep saw cut.

Lock Signal
The digital signal transmitted is adjustable to be received by all carts within a 3-foot perimeter of the embedded antenna.  Signal is adjustable for proper reception at any distance from 2+ feet.