Fetal Doppler Echo Sounder ES-101EX

Echo Sounder ES-101EX ( 2MHz) Cost effective with a built-in 2 MHz transducer - no separate probe to connect Large, easy to read LCD - view fetal heart rate ( FHR) based on 4-beat average Compact and battery operated Specifications Power: DC 3V, 2 AA alkaline batteries Consumption: Approx. 90 mA with no signal input Battery life: 5 hours or more with max. sound volume Transducer: 20 mm DIAM Transducer frequency: 2.25 MHz Method: Pulsed wave, repetition rate of approx. 4.3 kHz Oscillation Output 8V p-p or less Freq. Characteristics: 230 Hz ± 50 Hz to 800 ± 150 Hz, -6dB Max. speaker output Impedance: 64 ohms, max. output: approx. 125 mW Speaker: 45 mm DIAM Headset: Cuts off speaker LCD dimensions: Display area: H 10 mm x W 30 mm LCD display: 3 digits, 7 segments each, heart beat mark, low attery, sound volume level Heart rate range: 60 to 240 BPM ± 3% Buttons: Power / Freeze power ON/ OFF Pressing longer than 2 sec. turns the unit OFF Freeze ON/ OFF by pressing less than 2 sec. Volume control: Press to switch from low to high volume; press longer than 2 sec. to show battery level Dimensions: approx. 140 ( H) x 45 ( W) x 30 ( D) mm Weight: 220 grams or less including battery Accessories: Included: ultrasonic gel, batteries ( 2) , strap, carry pouch with belt clip Optional: headset Electrical safety: Conforms to IEC-60601-1-1