| Allied Electronics | 70120124 | 1 | | 1 | |
 Digi-Key | 480-2429-ND | 1 | 30 | 1 | 1 @ $34.04, 10 @ $30.73, 25 @ $29.44, 50 @ $27.60, 100 @ $26.68, 250 @ $25.24 |
 Newark | 23F4090 | 200 | | 200 | 100 @ $39.07 |
 Onlinecomponents.com | BZ-2RDS-A2-S | 1 | 167 | 1 | 1 @ $29.79, 25 @ $28.30, 50 @ $26.88, 100 @ $25.54, 500 @ $13.28, 1000 @ $12.26, 2000 @ $12.00 |
| Peerless Electronics | BZ-2RDS-A2-S | 1 | Call for availability | 1 | 1 @ $19.25, 10 @ $19.00, 25 @ $18.50, 50 @ $18.00 |
| RS Online | 8426586 | 1 | | 1 | |
| Galco | BZ-2RDS-A2-S | 1 | | 1 | |
 Carlton Bates Company | 78454916146 | 1 | | 1 | 1 @ $39.87 |
| 1Source | BZ-2RDS-A2-S | 1 | | 1 | |
| iodParts | BZ-2RDS-A2-S | 1 | 400 | 1 | |
 AmazonTP | B005T5JP66 | 1 | | 1 | 1 @ $40.44 |
 AmazonSC | B005T5JP66 | 1 | -2 | 1 | 1 @ $44.46 |
| Amazon | B00DK889WA | 1 | | 1 | 1 @ $44.11 |
| Digi-Key | 1248580 | 1 | 80 | 1 | 1 @ $44.68, 10 @ $39.10, 25 @ $35.75, 50 @ $33.51, 100 @ $31.84, 250 @ $30.72 |
 Arrow | BZ-2RDS-A2-S | 1 | 3 | 1 | 1 @ $34.10, 10 @ $30.77, 100 @ $28.27, 1000 @ $28.27, 10000 @ $28.27 |
| RS Delivers | 842-6586 | 1 | | 1 | 1 @ $31.72 |
 kempstoncontrols.co.uk | BZ-2RDS-A2-S | 1 | | 1 | 1 @ $9510.88 |
| standardelectricsupply.com | 2186863 | 1 | 153 | 1 | 1 @ $7474.00 |
 Radwell | BZ-2RDS-A2-S | 1 | 2 | 1 | 1 @ $48.00 |
| RS Delivers | 2508590501 | 1 | | 1 | |
| TME | BZ-2RDS-A2-S | 25 | | 25 | 25 @ $39.39, 50 @ $35.31 |
 Galco | BZ-2RDS-A2-S-MCRO | 1 | | 1 | 1 @ $0.00 |
| alliedcontrols.com | BZ-2RDS-A2-S | 1 | Factory Order | 1 | 1 @ $43.13 |
| us.rs-online.com | 70120124 | 1 | | 1 | 1 @ $50.58, 3 @ $47.77, 5 @ $45.21, 25 @ $42.94, 50 @ $40.24, 100 @ $38.44 |