Bistos BT-350 Twin Fetal Monitor (CTG) with Built-in Printer
A CTG that follows two fetal heart rates (twins) and uterine contractions at the same time with dual pulsed doppler, and prints the trace on a built-in thermal printer. Choose a colour LCD showing the trace and the numbers, an LED numeric display, or the LCD with battery. The obstetrician reads the trace and decides; the device does not replace their follow-up.
1-year warranty
On Bistos devices, from the date of purchase.
Lifetime service
Service and genuine spare parts, after the warranty too.
Accredited maintenance centre
By the General Authority for Industrial Control.
Ali Ben Ali
In the medical equipment trade since 1987, with 4 branches.
This device may suit you if...
Follow-up and diagnosis stay with the obstetrician. These are the uses the device is made for.
An obstetrics clinic or hospital
Recording fetal heart rate and contractions on paper.
You follow twin pregnancies
Two fetal heart-rate channels in the same trace.
You want it to run on battery
Choose «LCD with battery».
The CTG in one line: the doppler probe picks up the fetal heart rate, an external sensor measures the contractions, and the device draws them together on the screen and on paper.
See the device on video
The manufacturer's device video · BT-350BT-350 features
Twin monitoring
Two fetal heart-rate channels (FHR I and FHR II) plus a contraction channel.
Built-in thermal printer
1, 2 and 3 cm/min, with auto print every 10 up to 60 minutes.
Fetal movement detection
Automatic for both fetuses, with fetal movement print.
Fetal heart-rate range
30–240 bpm, accuracy ±2% of range.
3 options
7'' colour LCD with trace and numbers, large LED numbers, or the LCD with battery.
Paper and storage
GE / Philips paper compatible, USB data saving, and 450 hours of storage on the LCD version.
Technical specifications
Safety
- Ultrasound intensity
- 10 mW/cm² or less
Therapy
- Assist functions
- Mark function, FHR II offset, interpretation function, multi-language quick guide on the LCD version
Monitoring
- FHR technique
- Dual pulsed doppler
- Probe frequency
- 1 MHz, waterproof probe
- Monitoring channels
- 3 channels: FHR I, FHR II (twins) and UC
- Fetal heart-rate range
- 30–240 bpm, accuracy ±2% of range
- Fetal movement
- Auto-detection of dual fetal movement
- Uterine contractions (UC)
- External, DC–0.5 Hz response, 0–99 units, reference (zero) control
Display
- Display
- LCD: 7'' wide TFT colour · LED: large 7-segment numbers
- Printing
- Built-in thermal array printer, 1 / 2 / 3 cm/min, high speed in trend mode, paper feeding
- Print modes
- Auto print: off, 10, 20, 30, 40, 50, 60 min; fetal movement print
- Recording paper
- GE / Philips paper compatible
Data & connectivity
- Data storage
- USB data saving; the LCD version stores 450 hours (3 h per patient, up to 150 patients)
- PC interface
- RS-232C (wired)
Power
- Battery
- Rechargeable battery on the «LCD with battery» option only
- Power input
- AC 100–240 V (50/60 Hz); adaptor DC 18 V, 2.5 A
- Electrical input power
- 80 VA
Physical
- Dimensions
- 330 × 280 × 80 mm
Warranty & after-sales
- Ali Ben Ali warranty
- 1 year
Identity
- Options
- Colour LCD · LED numeric · LCD with battery
- Difference between options
- LCD: 7'' colour screen showing the trace and the numbers, multi-language quick guide, 450-hour storage · LED: large numbers only (7-segment) · LCD with battery: the LCD version plus a rechargeable battery
Compare the three BT-350 versions
| Colour LCD | LED numeric | LCD with battery | |
|---|---|---|---|
| Display | 7'' wide TFT colour | Large 7-segment numbers | 7'' wide TFT colour |
| Trace on screen | Trace and numbers | Numbers only | Trace and numbers |
| Multi-language quick guide | Yes | – | Yes |
| Recording storage | 450 hours | – | 450 hours |
| Rechargeable battery | – | – | Yes |
| Twins and contractions | Yes | Yes | Yes |
| Built-in thermal printer | Yes | Yes | Yes |
A dot next to a value means it differs from the device on this page.
Frequently asked questions
About the BT-350
What is the difference between the three options?
Colour LCD: a 7'' screen showing the trace and the numbers, a multi-language quick guide and 450 hours of storage. LED numeric: large numbers only. LCD with battery: the same LCD version plus a rechargeable battery.
Who sets it up and reads the trace?
The physician or nursing staff fit the probes and set the printing; the obstetrician reads the trace and decides.
What printing paper does it use?
It is compatible with GE and Philips paper. Service and genuine spare parts continue for the device's whole life.
What power supply does it need?
AC 100–240 V (50/60 Hz) through a DC 18 V, 2.5 A adaptor; consumption 80 VA. The «LCD with battery» option also runs on a rechargeable battery.
Does it replace the doctor's follow-up?
No. The device records the fetal heart rate and contractions; diagnosis and decisions stay with the obstetrician.
About buying medical devices from Ali Ben Ali
Is the device genuine, and how can I be sure?
The device is made by Bistos and comes with the Ali Ben Ali warranty; we have been in the medical equipment trade since 1987. You can also see it in person at any of our branches before you buy.
About usHow long is the warranty, and who provides it?
1 year from Ali Ben Ali from the date of purchase, on Bistos devices. We honour it directly, not through a third party; for any coverage question call the hotline 01212333328.
Maintenance centresIf the device breaks after the warranty, who repairs it?
Our maintenance centre at 31 El Rashidy St – Kasr El Aini, accredited by the General Authority for Industrial Control. Service and genuine spare parts stay available for the device's whole life.
Maintenance centresCan I return or exchange the device?
Yes, within 14 days of delivery, if it is unused, complete with its accessories and in its original packaging. If it arrives defective or different from your order, we replace it or refund it in full. Masks, tubing and any items that contact the patient cannot be returned once opened, for hygiene reasons. Return shipping is on us for a defect or a wrong item; otherwise the customer pays it, unless a free-shipping offer applies.
Exchange and returns policyDo you deliver and install? Should I buy online or at a branch?
We deliver and install in 27 governorates within Egypt. Shipping fees are set after you order and agreed with you by phone or WhatsApp before dispatch. Order on the website or on WhatsApp, or visit our branches: Rashidy and Bostan in Cairo, Alexandria and Mansoura.
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Specifications last updated: 2026-09-18
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