Siren for Wireless Security System ALSIR-2000

Warns you in case of intruders with sound and light

Available in stores now

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Key features

  • The siren will produce a loud sound (100 Decibel) when any of the connected sensors is triggered.
  • The wireless siren can be placed at any indoor or outdoor location via the included wall mount (IP44 water resistant)
  • Long battery life and battery low indication to make sure the system always works
  • Secure 2-way communication at 868 Mhz (no WiFi interference) with an indoor range up to 70 meter and outdoor range up to 120 meter
  • You can add multiple sensors and/or remote controls (max. 16 devices can be used in combination with the siren)
  • The siren constantly checks the connected wireless sensors to make sure your home remains secure
  • By combining this siren with the OCTOPUS Control Station you can also arm/disarm your alarm via your tablet and/or smartphone and receive push notifications when you are not at home
  • Anti-tamper system: the siren will be activated when the siren or one of the connected sensors is removed or opened
  • No payment of monthly fees required
  • Easy to install; no need to call an electrician


Height of main product (in mm) 241 mm
Width of main product (in mm) 168 mm
Depth of main product (in mm) 55 mm
Total weight 489 g
Number of available melodies / sounds 1
Sound pressure level 100 dB
Non-horizontal surface
Mounting materials included screws
IP Code (International Protection Rating) IPX4
Batteries included yes
Battery life (months) 18 month
Wireless transmission power (dBM) 10 dBM
Battery type (AA, AAA, etc.) D
Power source battery
Indicators Battery empty
Max number of transmitters supported 16

Extra information

General Item number:
EAN code:
1   year
Product weight (net):
489 g
Package contents Siren Screws Multi Language User guide
System requirements Compatible with all Trust Smart Home PLUS-LINE security products and OCTOPUS Control Station OCTOPUS Control Station needed to allow for communication via smartphone and tablet 4x Alkaline D type 1.5V battery (not included)


The following products are compatible. Click the link to see details of the product.




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Frequently Asked Questions

Solving problems

Where is your service center? Or where can I send my product to be repaired?

Unfortunately, we do not have service centers to repair products.
A defective product should be replaced by your point of purchase during the warranty period.

My product is faulty. What do I do?

We offer a 'return to retailer' warranty on our products. In case of a defect, you can return the product to your retailer with failure description, proof of purchase and all accessories. During the warranty period you will receive a replacement product from the retailer if available. For full warranty conditions you can consult: https://www.trust.com/support/warranty


Warranty conditions
  • Trust offers a warranty to the original purchaser from an authorized retailer.
  • Your Trust product is guaranteed under the terms and conditions of this warranty against manufacturing defects for a period of one (1) year* from the date of original purchase, if purchased from an official retailer.
    • *In EU, there is a statutory minimum warranty period of 2 years on every product we sell.
  • In case of defect, return the product to your retailer with failure description, valid proof of purchase and all accessories.
  • During the warranty period you will receive a replacement product from the retailer if available.
  • Warranty will be void in cases of opened products, physical damage, misuse, modification, repair by unauthorised persons, carelessness and using the product for other purpose than its intended use.
  • Exclusions of warranty:
    • Damage caused by accidents or disasters, such as fire, flood, earthquake, war, vandalism or theft.
    • Incompatibility with other hardware/software not defined as minimum system requirements.
    • Accessories such as batteries and fuses.
  • In no event shall the manufacturer be liable for any consequential or incidental damages, including any loss of business profits or any other commercial damages, arising out of the use of its product.


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Where to buy

Where to buy

We don't sell our products online ourselves. You can purchase our products via our retailers such as the large online retailers listed below per country. Furthermore you can find our products in many local shops.

Go to our online retailer shops overview