ABUS SG1681 Alarm sounder + flashing light 100 dB Red Indoors, Outdoors 12 V DC

The weather-proof construction and the especially small dimensions allow this siren with flashing light to be used in both indoor and covered outdoor areas. The siren generates an intermittent signal with a sound pressure of over 100 dB. The siren and the flashing light can be separately controlled.

Price: £ 21.99 from Conrad Electronic