| Manufacturer | Model | Frequency / Period | Sensitivity | RESP Filename | Source | Comments |
| Chaparral | 50A | 0.02-50 Hz / 50-0.02 s | 2.0 V/Pa | RESP.XX.IS001..BDF.50A.0_2.2 | Chaparral | High Sensitivity |
| Chaparral | 50A | 0.02-50 Hz / 50-0.02 s | 0.4 V/Pa | RESP.XX.IS002..BDF.50A.0_2.0_4 | Chaparral | Low Sensitivity |
Mary Templeton 3/10/2014