Working mode Continuous wave doppler Frequency 3±10%MHz Power output 3mW/CM2 Overall sensitivity ?100db FHR range 30240BPM FHL resolution 1BPM FHL Accuracy ±1BPM Display Color 1.44TFT 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 150Min Power ?1VA
- Configuration:pocket
- Application:fetal
- Options and accessories:with heart rate monitor