China Fetal Doppler

Doppler Fetal Heart Rate (FHR) Detector model BF-515 applies the ultrasonic Doppler principle to detect the fetal heart beat. The units are compact, lightweight, easy to operate with stable performance and high dependability.
Delicate, handle, probe integrated with main unit, pulse working mode, and built-in loudspeaker
Water-proof design, work under the water, and specially designed for water delivery.
Bluetooth function, FHR data can be transfered to PC with WiFi. There is the lock function for fetal heart rate.
Three working modes: Instantaneous count mode, average count mode and manual count mode.
Blue backlight LCD displays fetal heart rate and other information such as low power indicator and alarm indicator for abnormal FHR etc.
Excellent power management function: The backlight will power off after 10 seconds without signal input.
Adopt DSP technology which is the same with fetal monitor, to make sure accurate and stable fetal heart rate detection.
Specifications:
Standard: EN61266: 2005
Safety Cassification: BF /Cass II /Interna Power
Working mode: Puse Dopper
Utrasonic Frequency: 2.0 MHz; 3 MHz ( &pusmn; 10% )
Overa sensitivity: ≥ 90 dB (Integrated
Sensitivity 200mm away from the the surface of the probe)
Whie measuring integrated sensitivity, it uses the
Dopper frequency (300 &pusmn; 50) Hz, refecting target speed is 10cm / s ~ 40cm / s
Target veocity and dispay range: 3 0 bpm-2 4 0 bpm
Spatia-peak temp-peak acoustic pressure: &e; 0.1 MPa.
Effective area of transducer: 3.0&pusmn; 0.5 cm2
Battery: Akaine batteries(1.5V * 4 PCS) ( dry battery)
Power consumption: &e; 2VA
Couping medium impedance: 1.5-1.6 (105g/cm2. S)
Dopper frequency: 0-3.0 kHz
Speaker Power: 1W
Physical characteristics:
Size: 190 * 68 * 45 mm
Weight: 350g± 20g (including battery )
Humidity: ≤ 80%
Atmospheric pressure: 86kPa ~ 106kPa
Humidity: ≤ 80%
Atmospheric pressure: 86kPa ~ 106kPa, well-ventilated room without corrosive gases.
LAcoustic output parameters meet the national exempted conditions released that the ultrasonic and main unit in all operated mode can meet the following requirements:
A) The peak negative acoustic pressure(p_) <1Mpa;
B) The output beam of sound intensity(lob) <20mW/cm2;
C) Spatial peak time average educed the sound intensity (lspta) <100mW/cm2.
Standard configuration: Main unit, 1.5V*4 PCS alkaline battery, gallus, manual, warranty card and quality certificate