Outdoor curtain velum wls detector is the ideal solution to protect situations such as canopies, porches, below balcony, windows etc.
The sensor velum wls is synonymous with reliability and high safety, not only from the qualitative point of view, but also against sabotage
attempts, given that integrates a station with accelerometer for wall tamper, flexible and functional even in installations with the bracket
and a micro switch for front opening.

The wireless technology used is of the latest generation, fully bi-directional (each device acts as transceiver allowing every transmission to
receive a confirmation message, obtaining optimization of consumption and improved reliability compared to traditional mono-directional
systems), at 868 MHz frequency band (with FSK modulation).

A sophisticated proprietary control of power transmission (DPMS - Dynamic Power Management System) allows to reduce interference,
maximize battery life and optimize the transmission power depending on the distance between the devices and the type of installation.
Maximum protection of the entire system is ensured via encryption of each packet communication, using proprietary algorithm.

All wireless devices have a unique serial number that is automatically acquired by the system during installation; both on the programming software and on the keyboard of the ergo series are indicated in real time the signal level of each device and the communication path if there are more BUS receivers or any repeaters.


  • Power Supply: 1 Lithium battery LS14250 3.6 V (½ AA-size) included for a maximum duration of at least 2 years
  • IR sensor: dual element
  • IR range: 12 m (room temperature 25 ° C)
  • Warm-up time: 60 sec
  • Operating FrequencyMW: 24.125 GHz
  • Range MW: from 0.30m to 12m
  • ANTIMASKING Analysis: active; infrared LED
  • Thornproof: mems platform (Accelerometer)
  • Sabotage: front microswitch
  • Operating Temperature Range: from -20°C to +55°C
  • Immunity RFI/EMI: 20 V/m, 10-1000 MHz;10 V/m, 1-2 GHz
  • White light immunity: 6500 lux
  • Operating wireless frequency: 868 MHz band
  • Sight range: up to 300m
  • Detection area: only a tent (angle 7.5 °)
  • Horizontal coverage: IR 90 °, 80 ° MW
  • Vertical coverage: IR 7.5 °, 32 ° MW
  • Amplitude tent: a 2 m 25 cm, 130 cm at 10 m
  • Installation height: 2.10 m from 2.30 max on the wall
  • weigh: 90 g
  • protection: IP54
  • Color: gray


  • KSI5402010.303 - velum wls


  • KSI5900003.003 - Rain protection*
  • KSI7203627.000 - Lithium Battery 3.6V (½ AA-size) Included

*velum motion detector can be also




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