fetal doppler

Product Description

Physical Characteristics: Size:*0(Depth)***0(width)**5(height) Weight: **0g±*0g(Including battery) Environment Working environment: Temperature: *5℃ ～ **0℃ Humidity: < *5％ Atmospheric pressure: *6kPa ～ **6kPa Transport and storage temperature: Temperature: **0℃ ～ **5℃ Humidity: < *3％ Atmospheric pressure: *6kPa ～ **6kPa Display: *8×*6mmLCD display Capability of fetal heart rate: Measurement range: *0 ～**0 bpm (bpm: per minute beat times) Resolution: 1bpm Accuracy : ±1％±1 bpm Speaker power: 1W Auto Shut-off: no signal, no pressing key operation, it will power off automatically after 1 minute. recommended battery type: Li-ion battery. Can meet more than **0*1minute inspection requirement. Transducer: Working frequency: 1.0MHz、2.0MHz、2.5MHz ±5％ P_：< 0.1MPa Iob< 1mW/ｃ㎡ Ispta<5mW/ｃ㎡ Working mode: Continuous/pulsed doppler Effective ultrasound send/incept area: **0 m㎡±*0％ Ultrasound strength: ≤5mW/ｃ㎡ Total sensitivity: ≥ *0 dB, at the distance **0 mm to the surface of the probe, the target frequency is **0 bpm. Spo2 parameter: HR: *0 ～ **0 bpm Accuracy : 2bpm in normal state Spo2: 0 ～ **0% Accuracy : （*0～**0%. 2% in normally condition. 3% in sport or weak perfusion state；under *0% Temperature: The measurement range: *8℃***3.5℃; measurement accuracy: ±0.2℃。