Product name: Ultrasonic Fetal Doppler         EMC: Group I Class B         Size: 150 (Length) ×96 (Width) ×38 (Height) mm         Weight: 150g±20g (excluding batteries)FHR performance:         Integrative sensitivity: ≥90db         FHR measuring range: 50 ~210BPM (BPM: beat per minute)        Accuracy: ±2BPM,         Speaker power: 0.5W         Battery type: Two pieces of AA batteriesUltrasound probe:         Degree of liquid protection provided by sealed equipment: IPX1        Working frequency: 2. 5MHz±15%         Working mode: Continuous wave doppler         Spatial-peak temporal-peak intensity: < 21.7 kPa         Ultrasonic output intensity: < 10mW         Effective radiating area of transducer: 157mm2±15%Package Including      1*Portable Baby Heart Rate DetectorEvery detail of products is rigorously checked before shipment to ensure that every item is perfect in your hand.ARRIVAL TIME9-25 business days.100% MONEY-BACK GUARANTEEWe offer 100% return service and friendly 24/7 customer service as long as you are not satisfied with the product.
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