Working mode ?Continuous wave doppler Frequency ?3±10%MHz Power output ??3mW/CM2 Overall sensitivity ??100db FHR range ?30?240BPM FHL resolution ?1BPM FHL Accuracy ?±1BPM Display ?27.6×10.6mm LCD FHR display mode ?Real-time Audio output ??250mW Battery ?Single Rechargeable Li-battery 3.7V Package size ?128×58×38mm Weight? ?200g Charger ?5VDC Estimate working time? 300Min Power? ?1VA
- Options and accessories:with heart rate monitor
- Configuration:pocket
- Application:fetal