Twinguard help

Twinguard help



Further information

Technical Data

Product name
Smoke detector with integrated air quality sensor
Article number
440 g
Dimensions (H x W x D)
138 x 138 x 41 mm
Dimensions packaging (H x W x D)
182 x 181,5 x 102,75 mm
Country of origin
6 x 1.5 V AA alkaline batteries (replaceable)
Battery life
2 years (typical)
Wireless frequency
2,4 GHz ISM-Band
Wi-fi free field range
≥ 100 m
Transmitting power
8 dBm
Degree of protection
Ambient temperature
5 °C ... 30 °C
93% (non-condensing)
Bearing temperature
-5 °C ... +30 °C

Box contents

  • 1 Twinguard smoke detector
  • 6 alkaline AA batteries included and installed in the detector
  • 1 Installation plate for ceiling mounting
  • 2 Screws and wall plugs for ceiling mounting
  • 1 Installation guide
Notes about battery disposal

In conjunction with the sale of batteries or supply of devices that contain batteries, we are obligated to point out the following:

Used batteries should not be disposed of in the household rubbish. Consumers are obligated to take batteries to a suitable collection point provided by retailers or municipalities. You can return used batteries of models that we stock or have stocked in our product line to our shipping warehouse (Bosch Thermotechnik GmbH, Spare parts logistics, Justus-Kilian-Strasse 1, D-35457 Lollar) at no charge.

The symbols on the batteries have the following meaning:

The symbol of the garbage can crossed out by an X means that the battery must not be disposed of in household waste.

Pb = Battery contains more than 0.004 percent lead by mass<br> Cd = Battery contains more than 0.002 percent cadmium by mass<br> Hg = Battery contains more than 0.0005 percent mercury by mass

Please note the instructions above.

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0808 1011 151
(toll-free service number for calls from UK)

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