Specifications
Dimensions: (L x W x H) 5.8 x 3.6 x 1.3 in ( 14.7 x 9.1 x 3.3 cm)
Weight: 9.8 ozs. ( 0.28 kg)
Power: 4 AA alkaline batteries, AC Adapter or USB power
Display: Backlit 128 x 64 Graphic LCD
Clock: Real Time, Battery Backed Up
Standards: ANSI S3.6-1996
Warranty: 5 year, limited
Audiometry Specifications
Frequencies: 125 to 8000 Hz
Intensity Range (TDH-39): 125 Hz: -10 dB to 55 dB HTL 250 to 8k Hz: -10 dB to 80 dB HTL
Step Size: 5, 10, or 20 dB
Presentation Mode: Pulsed or Continuous
Frequency Accuracy: +/- 1%
Level Accuracy: +/- 1 dB
Distortion: < 0.5%