• Long Life Active Personnel Tag
  • Robust Construction
  • Dormant Outside Of Census Reader Fields
  • One Time Programmable 32 or 64 bit Tags
  • Hands Free Reading up to 3 Metres
  • Battery Low Indication
  • Encrypted Data Exchange
  • 1:100 Million Error Rate
  • CE, DTI & FCC Approved.
  • Also available in ATEX (Intrinsically safe) approved version.


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.

Census'® 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 Census® is 1:100 million in worst case noise, this is significantly better than any other tag system. 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.

TC1 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 5 years or greater. All Census® products operate at low frequencies which penetrates any material other than metal with no loss of range.

The TC1 is available in standard and ATEX (Intrinsically safe) approved versions, the ATEX version is supplied exclusively through Davis Derby Ltd. (


Specification Details
Dimensions 86 x 54 x 4.5mm
Weight 28g
Temperature range -20 to +60°C (non condensing)
Housing White ABS with Polycarbonate label
Colour White (Std)


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

  • Hands Free Access Control
  • Time and Attendance
  • Emergency Evacuation Monitoring - ATEX (Intrinsically safe) version available for hazardous environments.
  • Personnel Safety Roll Call
  • Car Parking Access
  • Personnel Identification
  • Personnel Tracking.

Ordering Information

Ordered as TC1 (TC1A - USA system). Intrinsically safe version TC1-IS (TC1A-IS - USA system)

Technical Details

Download the 1st manual for TC1.

Download the datasheet for TC1.