Mini Integrated Reader With an Illumination Ring NT 7531R

CODE: Nundnet NT 7531R

Nundnet 7531 is a slim access reader with luminous LED ring and wiegand output to integrate with the access control panels of our choice. The Acrylonitrile-Butadiene-Styrene & poly-carbonate material insures the tough and durable structural design of the device, hence capable of withstanding major & minor environmental changes including vandalism.

IndicatorLED RGB Ring
 Audio Beeper
ThemeStandby x 4, Reaction x 4
Frequency125 kHz
Card supportedEM
Sensing range6 ~ 12 cm
Read / Write125 kHz
TagEM 4001 / EM 4012 /
 HID ISOProx II, HID ProxCard II
InterfaceWiegand 26-34 bits /
Distance100M (22AWG shielded cable)
Housing MaterialPC & ABS
ColorStandard Black, Grey, Ivory
 Option Pearl White, Blue, Red
Power Consumption< 1 Watt
Operating Temperature-30°C ~75°C
IP ratingIP 56
Power supply9 ~24VDC
Dimensions(mm)55 x 55 x 12
Weight(g)30 grams


NT 7531RMini reader, IP 56 rated, 125 kHz, Reading range 6~12cm, 

Wiegand output 26/24 bit wide, 9-24VDC


Integrated ReaderNI NETNT 7531 R Specifications 1.1


Additional information


Operating frequency of 125kHz with data transmission rate of 4800 / 8600 bps & radio frequency of 106 kbps


As high as 75°C & as low as -30°C


Specialized LED module in ring format is used that helps users to identify the operation mode. Three different scenes can be created hence making the device suitable for any environment.

Access Methods

The device is designed to detect/ sense the EM cards at the distance of 6 ~ 12 cm


Acrylonitrile-Butadiene-Styrene (ABS) & Poly-carbonates (PC), thermoplastic polymers containing carbonate groups in their chemical structures to make device robust.


Elegant appearance, anti vandal, fast reading, dirt proof, humidity proof, dirt protection, non mechanical abrasion


Reverse polarity protection circuity is provided to avoid damage of device during installation or else. The device is protected against static discharge & over voltages.

Ingress Protection

IP 56, sufficient protection against ingression of dust & powerful water jets.


Easy to install without extra drilling. The device can be easily mounted on the wall. The screws drilled are hidden hence insures more secure installation.

Output Format

The output is wiegand 26 /34 bit wide hence compatible with all universal controllers.

FCC Compliance

Nundnet NT 7531R equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC rules. This device is designed to provide the
reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in
accordance with instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.