Product: Performance: Price: Sensor Life: Product Features:
★ ★ ☆ ☆ ☆ $$ N/A –Range: 34 – 42 kHz
–10 LED Index
–Compact Headset
★ ★ ★ ☆ ☆ $$$$ N/A –Range: 16 – 42 kHz
–20 LED Index & 4-Digit Display
–Noise Attenuating Headphones
★ ★ ★ ★ ☆ $$$$$ N/A –Ranges: 16 – 42 kHz, 0 – 10 kHz
–20 LED Index & 4-Digit Display
–Noise Attenuating Headphones