Communication and Signalling Equipment EX ResistTel Telephone EX FernTel Telephone EX Howl Call Telephone Weatherproof Telephone ResistTel Weatherproof Telephone FernTel Weatherproof Telephone FernTel W Weatherproof Phone Pillar Weatherproof VOIP Telephone Weatherproof ISDN Telephone EX Telephone Signal Combination eFSK EX Acoustic Telephone Call Signal Telephone Protection Hood Loudspeaker LS3000 EX Signalling Bell dGW 21 EX Sounder dEV21 EX Signalling Hooter HD22 Sirens F0, FI, FII, FIII Pneumatic Horn PH1 Strobe Light Profiflash EX Strobe Light dSLB20 EX Rotating Beacon dSLD21 Obstruction Light Skyline Alpha 1,2,3,4 Signalling Stack Light ML50 Mini Hooter with Warning Flash Light EX Sounder Strobe Combination YL6 Signal Combination Duo LED Ex Sounder dEV21         The EEx Sounder dEV 21 is a signalling device that generates various signalling tones and tone sequences and emits them at a high sound pressure level. The user may choose between 31 preset signalling tone groups and a programmable one. Every signalling tone group contains 4 different signal tones controlled by using jumpers on the control inputs. The sounder has 8 volume levels. All outer fasteners are made of non-corrosive materials. The stable, all-plastic housing conforms to protection degree IP 66, which makes this sounder suitable for indoor or outdoor installation. Explosion category II 2 G EEx dem IIC T6 allows the sounder to be operated in hazardous areas of zones 1 and 2. ORDERING INFORMATION: PART NO. ITEM DESCRIPTION PRICE in Euros (€) 96 075 210 10 21.6-75 VDC KLE DC version, Housing RED Part No. for BLACK housing available on request 659.00 96 265 110 10 85-265 VAC LKE AC version, Housing RED Part No. for BLACK housing available on request 627.00 PDF Catalog. DELIVERS THE PROMISE