The RT210900 is a non-contact radar button for automatic doors that combines comfort and hygiene. It reacts reliably to a hand movement in the direction of the sensor and thus avoids direct physical contact with a mechanical button, which is particularly advantageous in heavily frequented or sensitive areas.
The sensor works with radar technology in the 24 GHz range and specifically detects movements of the hand in front of the front surface. The detection range can be adjusted between about 10 and 60cm, so that the button triggers exactly where it should or where it is intuitive for the user.
Typical applications are automatic door systems in entrance areas, logistics, healthcare or wherever doors need to be operated hygienically and contact-free.
The trigger is made by a simple hand movement towards the sensor, supported by a clearly visible LED display that signals the switching status.
Potentiometers and DIP switches can be used to adapt the range, output mode and color logic of the LED to the respective application.
For example, it is possible to set whether the LED lights up when it is detected or at rest, giving the user clear visual feedback.
The RT210900 is operated with 12-24V AC or 12-24V DC and has a potential-free relay changeover contact with up to 1A switching current.
The power consumption is around 1.5W, which means that the sensor can be easily integrated into existing door controls.
With a compact housing of about 80 x 80 x 21mm made of robust PC plastic and IP54 protection, it is also suitable for use in demanding environments.
Installation in existing flush-mounted boxes is easy, and a suitable housing is available as an accessory for surface mounting (AR000008).
Thanks to the silicone seal and the well thought-out front panel, the button looks inconspicuous and blends harmoniously into door and wall surfaces. In daily practice, the RT210900 therefore ensures noticeably more convenient and at the same time safer door management – a small component with a big effect in everyday life.
Veni Reddy
MSV Instrumentation and Supplies (Pty) Ltd
087 822 1645
veni@msvinstrumentation.co.za
www.msvinstrumentation.co.za








