Specifications:
Frequency Control: Precision Crystal Oscillator
Output Frequency: 40 kHz (+/- 2.5 Hz)
Frequency Accuracy: +/- 50 parts per million
Precision Voltage Regulator: 1% Regulation
Output Intensity: 115 db at 30cm (nominal)
Dual mode output: Continuous or Burst Tone
Power: 9 Volt Cell Battery
Battery Life (approx): 70 hours Continuous, 90 hours Burst
Warranty: 1 year