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TV4 Key Fob Tag

TV4 Key Fob Tag

TC4 Key Fob Tag

Key Fob ID;

Replaceable Battery;

Dormant Outside Of Census Reader Fields;

One Time Programmable 32 or 64 bit Tags;

Hands Free Reading up to 2.5Metres;

Battery Low Indication;

Encrypted Data Exchange;

1:100 Million Error Rate;

CE, DTI & FCC Approved.



Cryptag® Census® tags can be simultaneously interrogated with no loss of fidelity. The RF communication between each tag and reader is scrambled to eliminate the chance of simulated tokens being used. Battery low indication is a standard feature.

Cryptag's® patented technology offers many benefits to systems designers, integrators and end users. Not least of these is that the tags do not interfere with other electronic surveillance systems resulting in false alarms etc. The typical error rate for Cryptag® Census® is 1:100 million in worst case noise, this is significantly better than any other tag system. Cryptag® Census® tags can be supplied with a fixed one time programmed 32 or 64 bit code. Strict factory audits ensure no two tags are issued with the same ID number.

The TC4 Cryptags® have a shelf life of 7 years or greater stored at 20°C. Operational life depends upon usage. However based upon 36 uses per day of 10 seconds each, or 6 minutes continuous interrogation per day, typical life at 20°C is 3 years or greater. All Census® products operate in the temperature range -20°C to +60°C.


DimensionsTeardrop 55 x 42 x 16mm
Temperature range-20 to +60°C (non condensing)
HousingBlack ABS

Ordering Information

Ordered as TV4 (TV4A - USA system).


The product is suitable for numerous applications, they include but are not limited to:

Key Monitoring;
Hands Free Access Control;
Time and Attendance;
Personnel Identification;
Personnel Tracking;
Product Tracking.

Add:No.189 Keji Rode, Cixi City, Zhejiang Province

Tel:(+86) 0574-63976333 / 63976335 / 63976336 / 63976388

Fax:(+86) 0574-63976326