| Standards | GB/TI5173, IEC942 |
| Sound Pressure | 94dB and 114dB |
| Accuracy | 0.3 dB |
| Frequency | 1000±0.01% Hz allows calibration with A,B,C or D weighting networks or linear. |
| Application | Calibration of 1” and ½” Microphones |
| Temperature Coefficent | 0 to 0.01 dB/oC |
| Altitude Effects | Approximately 0.1dB decrease for each 2000 feet increase in altitude from sea level to 12,000 feet elevation, or comparable atmospheric pressure change (approximately every 50mm of Hg decrease) |
| Temperature | -10 to = 50°C (Operating) |
| Range | -40 to 65°C (Storage with batteries removed) |
| Power | AAA 1.5V x 4 (UM – 4) |
| Dimension | 137 x 51 x 51mm |
| Weight | 200g |