Model Number: DFMX Brand Name: KANTECARE Key Specifications/Special Features: Fetal monitorspecificationsModel: DFMXPower of the productBattery: rechargeable lithium battery (4.2 V)Battery lifespan: continuous use of 12 hours, more than 300 times of charge-dischargeCharging power supply: micro USB (DC 5.0V, 100mA)(This product should be charged with the charging power supply of medical products comply with GB 9706.1/IEC 60601-1. The charging power supply should be checked or replaced regularly.)Category of productElectric shock protection type: internal power supplyElectric shock protection type: BF productLevel of anti-liquid: IPX4 (part of ultrasonic probe), IPX1 (other parts)The degree of safety of combustible gas: not suitable for using in environment with flammable gas
Operating mode: continuous operation
Size of product: 46 x 39 x 135 mm
Net weight: 150 g
Communication: ultra-low-powerconsumption Bluetooth 4.0

Working environment
Temperature: + 5 to + 40°C
Humidity: ≤85%
Atmospheric pressure: 70 to 106kPa
Product performance
Rated sound working frequency: 2.0MHz ±10%
Ultrasonic output power: <10mW
Effective ultrasound emission area: <1.0cm
Comprehensive sensitivity: ≥ 90dB
Fetal heart monitoring range: 65 to 210 beats/min
Fetal heart monitoring error: ≤2 times/min
Continuous working time ≥2 hours
(Low battery or too large volume will shorten the working hours)
Peak negative sound pressure: <1MPa
Sound intensity of output beam: 20mW/cm
Spatial peak time average output sound intensity: <100mW/cm
Service lifespan: 3 years