The Welch Allyn AudioScope 3 can screen your patients quickly and accurately. You can even use the instrument to view the patient?s ear canal before and during the screening. The AudioScope 3 has three screening levels in one unit (20, 25 and 40dB HL) so you can screen all of your patients with a single instrument. You get improved results because the tones are presented at random intervals so your patients can?t second guess their hearing screen. It also has also built in 1000Hz pretone, presented at 20dB HL above the screening level, so your patients can practice? listening before they?re actually screened.