Fetal Doppler

Display mode: LCD digital display Measuring range: 0-160 times/min Accuracy: ±2 times/minute Frequency: 3.0MHZ Measure pregnancy over 16 weeks The volume can be adjusted LCD backlight function Low battery indication function Ultrasonic probe Dimensions: 128×97×352 mm Display size: 38×32mm Net weight: about 140 g (excluding batteries) Applicable power supply: 2 AA dry batteries Battery life: 1 year (5 hours of continuous working) Working temperature and humidity: +5°C~+40°C, 15%RH~80%RH- Working atmospheric pressure: 80kPa~105kPa Transportation and storage temperature and humidity: -20°C~+55°C, 15%RH~80%RH.