1562-A Sound Level Calibrator

Acoustical Output:
Frequencies: 125, 250, 500, 1000 and 200 Hz
Frequencies Accuracy: ±3%
Output Level: 114 dB re 20 x 10-6 μN/m2
Level Accuracy: at 23°C and 790 mm Hg:
±0.3 dB @ 500 Hz;
±0.5 dB @ other frequencies.
Adaptors: Fits GenRad 1 1/8" mics directly; other mics require adaptors (available in limited quantities).
Output Voltage: 1.0 V ±20% behind 6000 Ω.
Frequency Characteristic:
Output is fl at ±2%.
Distortion: < 0.5%.
Connector: Jack to accept standard 1/4" phone plug.
Power Requirements: standard 9 V alkaline battery (NEDA 1604 AC).
Dimensions: 12.4 cm H x 5.7 cm W (4.9" x 2.2"). Weight: 0.45 kg (1 lb).
Operating Environment: 0 to 40°C, 0 to 95% relative humidity.
Storage Temperature: -40 to +60°C with battery removed.