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MaxiProx® 5375

125kHz Long Range proximity Reader.

Compatible with all HID proximity cards and keytags, EntryProx™ provides single-door proximity access control and is ideal for unique applications.


HID's MaxiProx® Reader is ideal for installations incorporating parking control and long read range applications. The MaxiProx reader packages all the electronics in one rugged, attractive and easy-to-install housing.

  • Long read range distance (up to 6' with ProxPass).
  • Autotune allows read range to be maintained within four inches of metal.
  • Wiegand, Clock-and-Data, RS-232, RS-422, and RS-485 output modes are configurable.
  • "Parking hold" feature ensures accurate detection of vehicles in parking lanes.
  • Power requirements: 12 or 24 VDC (configurable) .
  • Current requirements: 200mA avg / 700 mA peak at 12VDC; 260mA avg / 1.2A peak at 24 VDC.
  • Dimensions: 12.0" x 12.0" x 1.0" (30.5 x 30.5 x 2.54 cm).
  • Compatible with all HID cards and tags with formats up to 85 bits.
  • Multicolor LED with internal or host control of the LED and beeper.
  • Two MaxiProx units can operate one meter apart for "HI-LO" (truck and car) installations.
  • Reader supervision signal for CASI-RUSCO panels.



Typical Maximum Read Range*
ProxCard II Card - up to 24" (60.9 cm)

ISOProx II Card - up to 20" (50.8 cm)
DuoProx II Card - up to 20" (50.8 cm)
Smart ISOProx II - up to 20" (50.8 cm)
Smart DuoProx II Card - up to 20" (50.8 cm)
HID Proximity MIFARE Card - up to 20" (50.8 cm)
ProxCard®Plus Card - up to 13" (33 cm)
ProxKey II Keyfob - up to 17" (43.2 cm)
Microprox Tag - up to 15" (38 cm)
ProxPass Active Vehicle Tag - up to 6' (1.8 m)

*Depending on local installation conditions.

11.8" x 11.8" x 1.0" (30.0 x 30.0 x 2.54 cm)

Cable distance
Wiegand interface: 500 feet (152 m)

Clock-and-data interface: 50 feet (15 m)
RS-232: 50-200 feet (15-61 m)
Recommended cable is ALPHA 1295 (22 AWG) 5 conductor minimum stranded with overall shield or equivalent. Additional conductors may be required for LED or beeper control.
RS-422 and RS-485: 4000 feet (1219 m)
Recommended cable is ALPHA 1297.

Power supply
Configurable 12 or 24 VDC

Linear power supplies are recommended.

Current requirements
DC Current at 12V: Avg. 200mA, Peak 700mA

DC Current at 24V: Avg. 260mA, Peak 1.2A

Operating temperature
-22º to 150º F (-30º to 65º C)

Operating humidity
0-95% relative humidity non-condensing

51 oz. (1.4 kgm)

Canada/UL 294 Listed: Access Control System Units

FCC Certification, United States
Canada Certification
CE Mark, Fifteen EU Countries under the R&TTE
Directive (EN60950 - ITE Electrical Safety, EN 300 330 - SRD, and ETS 300 683 - EMC)
IEC60950, ITE CB Scheme Electrical Safety
Australia C-Tick Mark
New Zealand EMC



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