Audio Output: Frequency increases or decreases with signal strength (gradient field intensity).
	
Range: 30 to 4000 Hz.
	
Depth Detection: Up to 18’ deep (5.48 m) (object dependent)
	
Low Battery Indicator: 1/2 second audio beep, every 13 seconds
	
Gain: 5 levels: Extra Low (1), Low (2), Medium (3), High (4), Extra High (5)
	
Audio: Progression of audio beeps to correlate with gain setting (one beep for #1, two beeps for # 2, and so on)
	
Volume: 2 Levels: Medium & Maximum
	
Input Power: One 9V Battery
	
Battery Life: 24 Hours (intermittent usage)
	
Operating Temperature: -13°F to 140°F (-25°C to 60°C)
	
Overall Length: 42.3 in (107.4 cm)
	
Nominal Sensor Spacing: 20 in (50 cm)
	
Weight: ~2.0 lbs (0.9 Kg)
	
Water and Dust Protection: Rated IP54 overall, waterproof up to 27” (58 cm) from bottom tip