AC903 Proximity Card Access Control Terminal

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We ask when possible,
to contact us by Email at

Techrem Limited
The Old Forge
Nuneham Courtenay
OX44 9NX

UK Tel 01865 343951

Int +44 1865 343951

© Techrem Limited 2005

Products on this page may have
previously been offered by
Zygo Systems Limited

Proximity Card Access Control Terminal

Programmable Features

Three Access Modes: Armed (access in accordance with User Database), Disarmed (free unrestricted access), and locked (no access )

Up to 240 records in the User Database, each with an individual ID Code and/or Password

Three Access methods (selected individually for each user):
ID Card ( RFID )
ID Card + Password

Access to Programming mode is protected by a Master ID Card and/or Master Password
Support for normally-closed and normally-opened types of electric locks, alarm lines, door open sensors and exit switches

Editable parameters such as lock activation time and mode, alarm enable/disable, etc..

Hardware Features
Typical RFID card reading range of 4 inches. Installing the AC903 on a metal surface will not decrease the reading distance

Heavy-duty water-proof keypad for password entry and terminal programming

Highly reliable non-volatile memory- no backup battery required to prevent loss of data in the event of a power outage

Powerful Lock and Alarm Relays (15A resistive load, 3A INDUCTIVE LOAD ) WITH GUARANTEED LIFE OF 100,000 cycles

Door Open Sensor and Door Open Switch inputs with opto-isolation to prevent problems caused by ESD

Built-in Tamper Sensor to trigger the alarm if the Terminal's top cover is lifted

Wide Supply Voltage Range: 9~15V (12V nominal)

Splash-proof ABS body with metal back cover and compact physical dimensions of 80(W) * 85(H) * 25(D) mm

The AC903 is a simple yet powerful stand alone Access Control Terminal based on Radio Frequency Identification (RFID) Technology (also known as Proximity). The AC903 is designed to be easy to install. Installing the AC903 is fast and hassle-free. The AC903's main connector is conveniently located and clearly marked. The wires are connect using a screwdriver, soldering and crimping is not required

The AC903 is easy to program. It is programmed from its own keypad and requires no external programming unit or computer connection. Despite being simple to use, the AC903 has many programmable features. Users can be added and deleted on the fly, several access modes are available, and the Terminal can be customized to work with different external hardware and configured with additional options that will further enhance the AC903's performance convenient.

Just pass the card in front of the Terminal (sometimes without taking it out of the wallet)

Unlike conventional magnetic cards, there is no need to swipe the card.

RFID cards do not wear out with use (reducing the number of replacement cards), because reading the card does not make contact with the reader. Equipped with heavy-duty water-resistant keypad, powerful relays, reliable memory, glitch-free sensors and contact-free card reading technology, the AC903 is guaranteed to provide years of service-free operation.

Product Currency 1+ 5+ 25+
AC903 £ (Pounds) 130.40 119.53 108.65

Lowest Price 125khz RFID tags Available
Product Currency 1+ 10+ 100+ 500+ 1,000+ 5,000+
KeyFob £ (Pounds) 2.45 1.55 0.95 0.62 0.51 0.41
Disc £ (Pounds) 2.45 1.55 0.95 0.62 0.51 0.41