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The Explosion Proof Sounder dEV 21Generates various tones and tone sequencesThe Explosion Proof Sounder dEV 21 is a signalling device that generates various signalling tones and signalling tone sequences and emits them at a high sound pressure level.
The user may choose between 31 preset signalling tone groups and one programmable one. Every signalling tone group contains 4 different signalling tones. Wire the control inputs with floating contacts or jumpers in order to chose any one of these 4 signalling tones. The sounder has 8 volume levels. All outer fastening parts are made of non-corrosive materials. The stable, all-plastic housing conforms to protection degree IP 66, which means the sounder can be installed both indoors and outdoors. Explosion category II 2 G EEx dem IIC T6 allows the sounder to be operated in hazardous areas of zones 1 and 2.
The sounder weighs in at under 6kg, and can be operated in a temperature range of between -20°C up to + 40°C. It has 31 programmable signal tones and emits 119 dB(A) at 1 m distance. Learn more about the Explosion Proof Sounder dEV 21 and our range of other Acoustic Alarms
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