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- Double chest-pieces for duplex, duplex baby and duplex neonatal stethoscope models - made of aluminum with practical rapid-exchange connector
- Bells: 0.9 inches (24 mm), 1.1 inch (28 mm), 1.4 inch (36 mm)
- Membranes: 1.1 inch (28 mm), 1.4 inch (36 mm), Approx. 2 inches (48 mm)
- 3 special membranes for first-class acoustics and three size bells (see specs tab)
- Particularly flat and soft non-chill rims for improved adaptation on the skin
- Matte chromium-plated binaural with integrated reinforced double-spring
- Optimal sealing of the external auditory canal with soft, replaceable ear-tips with metal screw thread
- Particularly strong Y-tube made of PVC for optimal acoustics to shield against undesired stray sounds
- Overall lengths: Approx. 31 inches (79 cm), Approx. 30.9 inches (78.5 cm), Approx. 30.7 inches (78 cm)
- Supplied with two pairs of replacement ear-tips, a replacement membrane each and a name plate
- Latex-free
• 2 year warranty
• Made in Germany
Riester Tristar Dual Head Stethoscope
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Special membranes
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1.1 inch (28 mm), 1.4 inch (36 mm), Approx. 2 inches (48 mm) |
Bells
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0.9 inches (24 mm), 1.1 inch (28 mm), 1.4 inch (36 mm) |
Overall lengths
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Approx. 31 inches (79 cm), Approx. 30.9 inches (78.5 cm), Approx. 30.7 inches (78 cm) |
Includes
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Two pairs of replacement ear-tips, replacement membrane each, name plate |
Frequency analysis of duplex
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20 Hz - 100 Hz max. 3.6 dB at 100 Hz / 100 Hz - 1,500 Hz max. 21.7 dB at 300 Hz |
Frequency analysis of duplex baby
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20 Hz - 100 Hz max. 3.85 dB at 100 Hz / 100 Hz - 1,500 Hz max. 14.3 dB at 300 Hz |
Frequency analysis of duplex neonatal
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20 Hz - 100 Hz max. 1.2 dB at 55 Hz / 100 Hz - 1,500 Hz max. 8.5 dB at 300 Hz |
COLORS AVAILABLE:
| Color |
Part No. |
| Slate Gray |
R-4091 |
| Blue |
R-4093 |
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Deluxe Tristar - Riester R-4091, R-4093
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