Stethoscopes




ST4

Professional Stethoscope Microphone
 
Amplification
:
100.000 times, 86 dB
Power Supply
:
9 V Block Battery
Running Time
:
approx. 200 hours
Connectors for
:
sound receptor, headphone, recording unit
Dimensions
:
120 x 60 x 25 mm
Weight w / battery
:
approx. 120 g
 

ST4-10
Stereo Stethoscope with Equaliser

High sensitivity stereophonic operation stethoscope is equipped with 10 channel equalizer with background noise filter. Audio frequency band for voice monitoring from 0,1KHz to 5KHz.
Power
:
230V AC or Internal Battery 4hrs
 

ST4-20
Stethoscope Transmitter

Transmitting Range
:
400 - 1000 m
HF Output
:
20 mW
Modulation
:
NFM +/- 3 kHz deviation
Microphone
:
special type w/compressor amplifier
Power Supply
:
:
6 V Battery VHF
2 x 3,4 V Battery UHF + SHF
Operating Time
:
:
:
approx. 30 hours continuous VHF
approx. 40 hours UHF
approx. 20 hours SHF
Antenna
:
flexible
Dimensions
:
:
45 x 30 x 18 mm VHF
59 x 30 x 18 mm UHF + GHz
Weight w/Battery
:
:
approx. 35 g VHF
approx. 45 g UHF + GHz
 

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