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.

The siren comes with built in NiMH battery (9V/ 180mAh).

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

EN 50131 Grade 2 Class IV Certified

SKU: 337 Category:


  • 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

Marketing Documentation

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


SR 300B - Declaration of conformity
Updated at 22.05.2020 Size 0.17MB
SR 300B - GRADE 2 Certificate
Updated at 28.07.2021 Size 0.12MB

Technical Documentation

SR 300 - Manual
Updated at 23.11.2020 Size 2.62MB

Promotional Materials

SR 300 B - Datasheet
Updated at 28.05.2020 Size 0.26MB

Product pictures