| Allied Electronics | 70119394 | 1 | | 1 | |
 Digi-Key | 480-4587-ND | 1 | | 1 | |
 Newark | 04M8383 | 200 | | 200 | 1 @ $0.00 |
 Onlinecomponents.com | BZ-2RDT | 1 | 647 | 1 | 1 @ $16.28, 25 @ $15.47, 50 @ $14.70, 100 @ $13.96, 500 @ $7.26, 1000 @ $6.71, 2000 @ $6.56 |
 Zoro | G4721656 | 1 | | 1 | 1 @ $22.41 |
 Grainger | 24A036 | 1 | | 1 | |
| 1Source | BZ-2RDT | 1 | | 1 | |
| Galco | BZ-2RDT | 1 | | 1 | |
| Raptor Supplies | AB7TGE | 1 | | 1 | |
| iodParts | BZ-2RDT | 1 | 350 | 1 | |
| Amazon | B00DK88C1S | 1 | | 1 | 1 @ $20.11 |
| Digi-Key | 2742870 | 1 | | 1 | |
| sustainablesupply.com | C1174540 | 1 | -2 | 1 | 1 @ $18.49 |
 Carlton Bates Company | 78454916165 | 1 | 7 | 1 | 1 @ $21.76, 10 @ $21.76, 100 @ $21.76, 1000 @ $21.76, 10000 @ $21.76 |
| Arrow | BZ-2RDT | 1 | 87 | 1 | 1 @ $11.91, 10 @ $11.91, 100 @ $11.91, 1000 @ $11.91, 10000 @ $11.91 |
| Mouser | 785-BZ-2RDT | 1 | 4 | 1 | 1 @ $24.31, 10 @ $19.43, 100 @ $16.75, 1000 @ $15.10, 10000 @ $15.61 |
 simsupply.com | ZO-G4721656 | 1 | 1 | 1 | 1 @ $27.20 |
 kempstoncontrols.co.uk | BZ-2RDT | 1 | | 1 | 1 @ $0.00 |
| standardelectricsupply.com | 2365852 | 1 | | 1 | |
 Radwell | BZ-2RDT | 50 | 3 | 50 | 1 @ $30.00 |
| us.rs-online.com | 70119394 | 1 | 138 | 1 | 1 @ $24.45, 3 @ $23.08, 5 @ $21.83, 25 @ $20.73, 50 @ $19.44, 100 @ $18.58 |
