SR 300B

SR 300B is an outdoor piezo siren. The siren has blue flash indication and selectable loudness levels. SR 300B is equipped with inner metal casing and bidirectional tamper for higher protection.

SR 300B has a flat plastic cover, which is especially suitable for company sticker or logo.

Some models of the siren comes with built in NiMH battery (9V/ 180mAh).

Model Flash indication Built in battery Inner metal cover
SR300 BF_M yes no yes
SR300 BFBM yes yes yes
SR300 BFB_ yes yes no
SR300 RFBM yes yes yes
SKU: 337 Categories: ,


  • Selectable sound output – 85 dB/1m; 105 dB/1m
  • Piezo speaker
  • Plastic housing with inner metal cover
  • IP54 protection
  • Built-in tamper
  • Built-in spirit level
  • Built-in NiMH battery
  • Large flat cover for company sticker or logo (size up to 220x160mm)
  • Blue flash


Power supply 9 – 15 VDC
Current consumption:
– Stand-by mode
– Alarm mode
10 mA
270 mA
Battery 9V/ 180mAh, built-in
Loudspeaker type piezo
Operating temperature -30°C ÷ +70°C
Dimensions 310 x 230 x 60 mm
Weight 1.14kg












Product Documents


SR 300B - Declaration of conformity
Updated at 22.05.2020 Size 0.17MB

Marketing Documentation

SR 300B - Datasheet (Portuguese)
Updated at 28.05.2020 Size 0.28MB

Promotional Materials

SR 300 B - Datasheet
Updated at 28.05.2020 Size 0.26MB

Technical Documentation

SR 300 - Manual
Updated at 23.11.2020 Size 2.62MB

Product pictures