Edwards 720 fully enclosed, non-adjustable bells. They may be operated off of a 592 transformer or DC power. They are also suitable for AC powered security systems with a battery standby.

Edwards Signaling™ Vibrating Bell, Dixie, 6 to 8 VAC/3 to 6 VDC, 1.2 A, 7 VA Power, 88/78 dB Sound Level, Gray, 5-1/4 in H x 3 in W x 1-1/32 in D Dimensions

• https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/IDW_DOCUMENT_3d03739f018efc53f6e051f24df0f98fcf88f80a32f1261176fa60b6faa87c6e.pdf https://www.iesbuy.com//ASSETS/DOCUMENTS/ITEMS/EN/https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/IDW_DOCUMENT_3d03739f018efc53f6e051f24df0f98fcf88f80a32f1261176fa60b6faa87c6e.pdf

• Fully enclosed
• Low voltage
• AC and DC operation
• Attractive snap-on covers
• Enclosed binding posts
• Corrosion-resistant metallic finish