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Auditdata Measure · NEW TRANSDUCER LINE · SA1
Class 2a Medical Device · IEC 60645-1 · PTB Berlin Validated
The certified supra-aural audiometric headphone covers 125 to 8,000 Hz with a sensitivity of 103 dB SPL at 1 kHz and is compatible with three headband types: HB-7 (Wilfan), HBA (RadioEar), and the new SAHB-1 Real Ear headband (2026).
The SA1 supports HB-7 (Wilfan), HBA (RadioEar), and the new SAHB-1 Real Ear headband offering the broadest compatibility of any supra-aural transducer in the Auditdata Measure line and enabling a seamless transition from legacy setups.
ETSPLs independently verified by Dr. Marion Bug at PTB Berlin. Covered screws for full medical safety compliance, color-coded plugs for instant left/right identification, and full Class 2a Medical Device certification, all standard, no extras required.
Best Care Experience
The SA1 was built around the clinic's need for a reliable, familiar supra-aural headphone that meets every compliance requirement without asking clinicians to change how they work. It fits your existing headbands, it matches your calibration data, and it performs to the same standards you already trust.
For clinics transitioning from HB-7 headphones or managing mixed equipment environments, the SA1's three-headband compatibility means no disruption to existing workflows, and no compromise on measurement quality.
No recalibration needed. PTB Berlin-validated ETSPLs match the RE-7 standard — your existing audiometric setup transfers directly.
Works with headbands you already have. Compatible with HB-7 (Wilfan) and HBA (RadioEar) in addition to the new SAHB-1 — protecting your existing headband investment.
Medical safety as standard. Covered screws, color-coded plugs, and full Class 2a certification mean compliance is built in, not bolted on.
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WHAT WE CLAIM
The SA1 is built to perform to specification, here's exactly what that means.
Output Sound Level Precision of ±3 dB across the full −10 to 120 dB HL range, verified at time of manufacturing.
Sensitivity of 103 dB SPL at 1 kHz, 1 mW, high sensitivity for precise output control across the full audiometric test range.
Total Harmonic Distortion below 2.5% at recommended max output levels ensuring the audiogram reflects the patient, not the transducer.
Compatible with three headband types, HB-7 (Wilfan), HBA (RadioEar), and SAHB-1 (Real Ear, new 2026) for maximum flexibility.
Covered screws for medical safety compliance eliminating sharp edges and meeting clinical safety standards without additional modifications.
Biocompatible per ISO 10993-1, lead, nickel, and latex free; RoHS compatible. Safe for direct patient contact.
Cushions, headband, and cable available as spare parts supporting long-term repair and refurbishment to reduce total cost of ownership.
Technical Datasheet
Related Standards: IEC-60645-1:2017 and ANSI S3.6:2018 (R2023)
Frequency Range CA1: 125 Hz – 8,000 Hz
Output Level Range: −10 – 120 dB HL
Output Level Precision*: ±3 dB
Sensitivity*: 103 dB SPL @ 1kHz, 1mW
Distortion*: <2.5% at Recommended Max Levels
Nominal Impedance: 10 Ω (±15%)
*At time of manufacturing · Copyright © Auditdata A/S. 2026/03
Whether you're replacing existing supra-aural headphones or buying equipment for a new clinic setup, our team will help you confirm compatibility with your current headbands and audiometer.
A supra-aural audiometric headphone sits on top of the ear (on-ear) rather than enclosing it (over-ear/circum-aural). In clinical audiometry, supra-aural headphones such as the SA1 (equivalent to the RadioEar HB-7) are widely used for standard pure-tone air conduction testing. They are lighter than circum-aural headphones and have been the clinical standard for decades.
The SA1 is compatible with three headband types: HB-7 (Wilfan), HBA (RadioEar), and the new SAHB-1 Real Ear headband (introduced 2026). This ensures clinics can continue using their existing headbands when transitioning to the SA1, while also supporting the latest Auditdata Real Ear headband option.
The SA1 has a sensitivity of 103 dB SPL at 1 kHz, 1 mW, verified at time of manufacturing. Its output range covers −10 to 120 dB HL with an output precision of ±3 dB. Total Harmonic Distortion is below 2.5% at recommended maximum output levels.
The SA1 features covered screws on the earcup housing as a medical safety feature, eliminating exposed sharp edges. This complies with clinical medical device safety requirements and reduces the risk of patient contact with sharp hardware components during audiometric testing.