EDAN SONOTRAX Basic User Manual - page 33

SONOTRAX Series Ultrasonic Pocket Doppler User Manual                 Product Specifications 

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Display:     

45mm*25mm LCD display 

FHR Performance: 

Sensitivity:            10 weeks gestation (3MHz) 

FHR Measuring Range:  50bpm ~ 210bpm  

Resolution:                        1bpm 

Accuracy:             ±3bpm 

NOTE:   

In some cases, fetal heart beats at 10 weeks gestation can not be detected due to the 

maternal physical difference and the operator’s technique. 

Audio Output Power:    0.5W 

Recording and Playing: 

Audio Sampling Frequency: 4KHz / 8KHz 

Recording Length: 480s / 240s 

White Backlight: 

Two Brightness Adjustable: OFF, ON

Auto Shut down: 

1 minute after no signal or operation, auto shut down   

Recommended Alkaline Battery Type:   

9 volt DC alkaline battery (IEC Type No. 6LR61/6LF22 or equivalent). 

Stand-by Time (hour): 

SONOTRAX Lite 

8 to 10 hours 

SONOTRAX Basic 

10 to 13 hours 

SONOTRAX Basic A 

6 to 8 hours (with backlight) 

9V Alkaline 

Battery 

SONOTRAX Pro 

6 to 8 hours (with backlight) 

SONOTRAX Lite 

2.5 to 5 hours 

SONOTRAX Basic 

3 to 6 hours 

SONOTRAX Basic A 

2 to 4 hours (with backlight) 

8.4V NI-MH Battery 

SONOTRAX Pro 

2 to 4 hours (with backlight) 

7.4V Lithium-ion 

Polymer Battery 

SONOTRAX II 

SONOTRAX II Pro 

10 to 15 hours (with backlight)