694-52 RFID LF Secure Reader

The 694-52 Secure LF proximity reader consists of three parts: a potted unit containing the electronics, a front cover, and an optional spacer plate. A fixed 10-way colour coded cable protrudes from the back of the potted unit.

The key feature of the 694-52 LF Secure Reader is to prevent unauthorized copying or cloning of credentials. All LF Secure tags and cards are in sleep mode by default until woken up by a specific wake-up command generated by the reader. The reader will then read the transponder’s user-programmable ID Code and output the code in one of many user-selectable formats. LF Secure credentials can only be woken up and read by the readers they have been paired with. Wake-up codes can be created specifically for individual sites and / or customers.


  • Reader cover can be customised with your own logo
  • Low frequency is less susceptible to interference than HF
  • The transponder is in sleep mode – no data can be read by unauthorized readers
  • 3 LEDs and 1 Buzzer can be controlled externally
  • Configuration / reconfiguration by configuration card
  • 14 Output Formats supported
  • Integrated spacer plate for easy mounting, even on metal surfaces
  • Fully potted with IP65 certification for increased weather resistance
  • Variable operating voltage of 5-13.6V DC

Application ranges

  • Security Systems, i.e. access control
  • Time & Attendance
  • Job Costing
  • Secure operator identification


Dimensions (LxWxH) mm Reader: 89 x 45 x 16
Spacer plate: 89 x 45 x 7
Operating Temperature Range -20°C to +60°C
Buzzer Yes
Buzzer Control Cable
Frequency 125 kHz
Weight (in g) 90
Storage Temperature Range -20°C to +60°C
LED Control Cable
Humidity 10 – 90%
Interface Wiegand, Magstripe Emulation, Fast Magstripe RS232, Clock/Data, Crosspoint, EIA and TTL Levels
Water / Weather Resistance IP65
Power Supply 5-13,6V DC, 80-100mA
Transponder ID Code 10-digit in Hex oder 13-digit in Decimal-Code, or Code in Wiegand Format
Type Passive