Certeza CR-3004 Dual Head Rappaport Stethoscope

The Certeza CR-3004 is a dual head Rappaport-style stethoscope designed for precise auscultation in clinical and medical training settings. Combining a zinc alloy chest piece with chrome-plated brass binaurals and a manganese spring, it delivers durable, clear acoustic performance suited to the demands of medical professionals, nursing staff, and students.

The dual head design features both a diaphragm and a bell on the chest piece, allowing auscultation of both high-frequency sounds (heart, lung, and bowel sounds via the diaphragm) and low-frequency sounds (heart murmurs and blood pressure via the bell). The 46mm chest piece diameter and 30-inch overall length provide a practical, standard clinical configuration. Blue flexible tubing and a silver chest piece provide a clean, professional look.

A comprehensive accessory set is included: bell chest pieces, 2 spare diaphragms, mushroom eartips, and standard eartips — ensuring the stethoscope can be customised for individual comfort and clinical preference.

Why Choose Certeza Stethoscope

• Dual Head Chest Piece: Diaphragm for high-frequency sounds and bell for low-frequency sounds — covering the full range of clinical auscultation needs.
• Zinc Alloy Chest Piece: Durable silver-coloured zinc alloy construction for longevity in clinical environments.
• Chrome-Plated Brass Binaurals: Provides a secure, comfortable fit with long-lasting corrosion resistance.
• Manganese Spring: Strong, flexible headset spring maintains consistent tension and fit.
• 46mm Chest Piece Diameter: Standard adult clinical size for broad auscultation surface coverage.
• 30-Inch Overall Length: Standard Rappaport configuration for comfortable clinical use.
• Blue Tubing: Flexible, durable tubing in a professional clinical colour.
• Comprehensive Accessory Set: Bell chest pieces, 2 spare diaphragms, mushroom eartips, and standard eartips included.

Product Specifications

Usage Instructions

1. Insert the eartips into the ears with the tips angled slightly forward, following the natural direction of the ear canals.
2. Select the correct head for the auscultation required — diaphragm side for high-frequency sounds (lungs, normal heart sounds, bowel sounds); bell side for low-frequency sounds (heart murmurs, blood pressure).
3. Apply the appropriate side firmly but gently to the patient’s skin.
4. Listen carefully for the sounds being assessed. Minimise background noise during auscultation.
5. After use, wipe the chest piece and eartips with a disinfectant wipe suitable for clinical instruments.

Care Instructions

• Wipe the chest piece and eartips with an alcohol wipe or medical disinfectant after each patient contact.
• Do not submerge the stethoscope in liquid.
• Store in a clean, dry environment — avoid exposure to extreme heat or solvents that can degrade the tubing.
• Replace eartips and diaphragms when worn — spare parts are included in the accessory set.

Frequently Asked Questions