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CD-2 and ACD-220


Invisible curtains guarding the windows and doors inside your home or business. Meet our curtain detectors in two versions: wired and wireless.

Slim, compact and effective. These are the CD-2 and ACD-220 indoor curtain detectors. Use them to cover doors, windows or other entrances to your building with an "invisible curtain". CD-2 is a wired detector, while ACD-220 is a wireless detector, operating within the ABAX 2 two-way wireless system.

protection of windows and doors inside buildings

separation of a special protected zone inside a building

monitoring of arches and other inner passageways

as part of an automation

Curtain detectors

Experience a safe world from behind an invisible curtain

Motion detection

The CD-2 and ACD-220 detectors are equipped with a passive infrared (PIR) sensor, which detects movement in the supervised area. Both detectors use a digital algorithm of motion detection and temperature compensation, which makes them exceptionally resistant to false alarms. Sensitivity of the CD-2 motion sensor is adjusted manually, using potentiometers located on the detector's electronics board. Sensitivity of the ACD-220 motion sensor can be adjusted remotely, making it very convenient.

Tamper protection

Both devices are equipped with tamper protection.
Any unauthorised attempt to open their enclosure or detach them from the ground will be immediately detected, triggering an alarm.

Easy and quick installation

The CD-2 and ACD-220 are easy to install. Their enclosure is opened with a special tool (included with the detectors), preventing any scratching. The detectors are supplied with specially selected components, which can be used to attach the detectors to almost any surface.

Power up

The CD-2 wired detector is powered by 12 V DC and is equipped with a voltage monitoring system. When the voltage drops below threshold, the detector will report a failure, informing the installer that servicing is required.

The ACD-220 detector is battery powered. Thanks to the energy saving mechanisms used, the service life of the device has been maximally extended, reaching up to 8 years (with the "ECO" mode activated). When the battery runs out, alarm control panel sends a warning.

Slim and elegant design

The CD-2 and ACD-220 detectors are designed to provide effective interior protection without negative impact on building décor.
Their small size makes them easy to install in window recesses or by doors. The detectors come in three available colours: white, brown, and dark grey, making it easy to match them to your interior. The appearance and size of the enclosures match the design of other detectors offered by SATEL: universal - wired (XD-2) and wireless (AXD-200), as well as the AGD-200 wireless glass-break detector. Unified appearance of system devices creates a feeling of order and design.

Automation system support

Both detectors can be work within home automation systems. Whenever they sense movement in the detection area, the system can take specific action, like switching on lights, and more.

A perfect match for any building

Each building is different and requires an individual approach to the alarm system design.

Due to various building characteristics, sometimes a better option is to choose a wired installation, while somewhere else running cables might not be entirely possible. That's why our indoor curtain detectors are available in two variants to provide uncompromising protection wherever an 'invisible curtain' is needed. Choose the best version for your alarm system.


wired detector

see more


wireless detector

see more


CD-2 is a wired curtain motion detector. CD-2 is designed for indoor use and can be an element of perimeter protection.

CD-2 is available in three colour options: white (CD-2), brown (CD-2 BR) and dark grey (CD-2 DG).

  • motion detection using a passive infrared sensor (PIR)
  • adjustable sensitivity of motion detection
  • digital algorithm of motion detection
  • digital temperature compensation
  • lens designed specifically for SATEL short range curtain detectors
  • LED for optical signalling
  • monitoring of motion detection system and power supply voltage
  • tamper protection against opening the enclosure and against tearing the enclosure off the ground


general information manual
updated: 2021-11-03
475 KB


EU declaration of conformity
updated: 2022-01-17
211 KB

Technical Data

Supply voltage
12 V DC
Detected target velocity
0,3...1 m/s
Operating temperature range
Standby mode current consumption
5 mA
Max. current consumption
7 mA
27 g
Maximum humidity
20 x 102 x 25 mm
Environmental class according to EN50130-5
Alarm signaling time
2 s
Complied with standards
EN 50130-4, EN 50130-5
Warm-up period
30 s
Detection area
5 m x 1 m, 15°
Alarm outputs (NC relay, resistive load)
40 mA / 24 V DC
Tamper outputs (NC)
40 mA / 24 V DC
Relay contact resistance (NC alarm output)
26 Ω

Information materials


3leaflet - installer

4technical data

5product data sheet

The actual appearance of the products may differ from the presented images. Product descriptions are provided in the web service for information purposes only.
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