20G
Fetal Doppler is used for detect the Fetal Heart Rate ( FHR ) to hear the sound of 12 weeks pregnancy in hospital, clinic even at home.
Features:
●   3.5”inch color LCD display
●   Ultrasonic wave mode: Continuous wave or Pulse wave
●   Built-in speaker.
●   Automatic switch-off.
●   Waterproof Interchangeable probe
●   Various FHR Display mode : Graph Mode , Large Number Mode(real-time and average time), Manual Mode
●   Volume indication、battery energy indication、Probe Frequency Display, Date and Time display.
●   Sound alarm function when FHR is out of the normal range
●   Built-in rechargeable batteries, continuous working time ≥8 hours
●   Set-up mode for function setting.
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Specification:
＊  Ultrasonic Frequency:1.0MHz, 2.5 MHz or 2.0MHz
＊   LCD size:3.5 inch (74*50mm)
＊   FHR display range:30bpm-240bpm 
＊   Dimension：230(L)* 148(W)* 100(H)mm
＊   Weight : 1kg
＊   Continuous work time:≥ 8 hours
 
Standard accessories: Rechargeable battery、Charger、Manual
Option: Gel、bag、Other
Packing: 
Quantity:5pcs /carton
Dimension:42*32*51cm /carton
N.W.:6.5kg
G.W.:9kg