• Doppler:
- Pulsed Doppler
- Ultrasound frequency: 1.0 MHz
- Intensity: <10mW/cm2
- FHR range: 50-240 bpm (± 1 bpm)

• Fetal movement:
- Detection source: Ultrasound pulsed doppler

• UC:
- Frequency response: DC 0.5 Hz
- Reference (zero) control
- Measurement range: 0~99 units

• Printer:
- Thermal array type
- Print speed: 1, 2, 3 cm/min
- Paper feeding function

• Display:
- 320 x 240 Colour LCD

• Indicators:
- Heart rhythm with signal quality
- Alarm, printing on/off state
- AC power

• Set-up:
- Alarm upper/low limit value
- Record speed, paper grid, Fetal
- Movement On/Off, Time/Date, Print contrast, Auto print period• Power:
- Input: AC 100-240V (50/60 Hz)
- Output: DC 18V, 2.5A
- Consumption: 80W

• Dimensions:
- 296(W)x 305.5(H) x 92.5(D)mm
- Weight: approx 3.2 kg

• External link:
- RS-232C: Program DownloadANALYSIS FUNCTION
- Period: test period
- Average baseline FHR (bpm)
- Number of UC (frequency / h)
- Number of acceleration (frequency / h)
- Number of deceleration (frequency / h)
- Late DEC: number of late deceleration
- Early DEC: number of early deceleration
- Variable DEC: number of variable deceleration
- TACHY: moderate (>160 bpm): period of that FHR is between 160~190 (minutes)
- TACHY: severe (>190 bpm): period of that FHR is over 190 (minutes)
- BRADY: moderate (- BRADY: severe (