Indoplas Pocket Fetal Doppler Sonoline B are hand-held, battery powered audio Doppler devices used for detecting fetal heart beats. They are all available for user replaceable batteries. The user interface includes power button, mode button, volume control, single speaker, headphone jack and LCD display for heart rate, battery and working mode, probe type. Sonoline B includes four interchangeable probes (2MHz normal probe, 2MHz water proof probe, 3MHz normal probe)
• Battery status indicator
• Low power inspection of the battery
• Built-in speaker
• Output for headphones
• The probe can be changeable
• Probe inspection
• Large LCD display with backlight
• Auto shut off
