Baby Movement Monitor
The sensor detects your baby's micro-movements through the mattress. No device on your baby.
- Detection: picks up micro-movements
- 20-Second Alarm
- Under the Mattress: no device on your baby
- Adjustable Sensitivity: adapts to each baby
Not available for delivery to the United States.
The Securidou Movement Monitor uses under-mattress sensor technology:
- Piezoelectric sensor: A sensitive plate placed under the mattress that detects your baby's micro-movements without any contact.
- 20-second alarm threshold: If no movement is detected for 20 seconds, a progressive audible alarm is triggered.
- Adjustable sensitivity (3 levels): Adjust the sensor's sensitivity according to your baby's weight and the thickness of the mattress.
- LED indicator: A discreet light confirming that the sensor is picking up movements properly.
- Flexible power supply: Runs on battery (long battery life) or via USB for continuous use.
- Universal compatibility: Compatible with all standard cot mattresses up to 12 cm thick.
Included: 1 under-mattress sensor + 1 control unit + 1 USB cable + 1 installation guide.
What is an under-mattress movement monitor?
An under-mattress movement monitor is a sensor that slides under the bedding and detects the body's micro-movements during sleep. The sensor is piezoelectric: it converts a mechanical deformation into a signal, without emitting anything towards your baby and without any accessory being worn. The Securidou model triggers an audible alert when no movement is detected for 20 seconds, with three sensitivity levels to adjust according to the child's weight and the thickness of the mattress. It runs on battery or USB, without a Wi-Fi connection, which makes it independent of the home network.
What this monitor is not
This product is a movement alert device. It is not a medical device: it detects no medical condition and makes no diagnosis. It replaces neither adult supervision, nor your healthcare professional's recommendations on putting your baby to sleep, nor medical advice. An under-mattress sensor can also miss a movement, or signal one that is not one: an alert is not proof, and the same goes for the absence of an alert. If you have the slightest concern about your baby's sleep or breathing, the right step is to seek medical advice, not to add a device.
Safety and compliance information
Safety warnings
- Manufacturer
-
Securidou — Rayane Pascoal (micro-entreprise)
59 rue Hoche
92240 Malakoff
France
contact@securidou.fr - Product identification
- Baby Movement Monitor, reference SEC-MON-RES
Your baby's safety is our absolute priority:
- Ultra-low emissions: The sensor works by mechanical (piezoelectric) detection, with no radio waves emitted towards your baby.
- No Wi-Fi connection: Stand-alone operation, no risk of hacking nor dependence on the network.
- BPA-free materials: All the components are free from bisphenol A and harmful substances.
- Piezoelectric sensor: Monitoring technology using mechanical detection of micro-movements.
- Zero contact with your baby: The sensor stays under the mattress, no device worn.
Free delivery with no minimum order
A tracking number is emailed to you as soon as your order ships.
30-Day Returns:
Try the Securidou Movement Monitor at home: if you are not entirely satisfied, you have 30 days to return it and get a full refund. Return shipping remains at your expense (except for defective products).
Customer support: Our French team is available every day of the week (7/7), with a reply within 24 hours.

Monitored in silence
5 technologies
Detection
Micro-movements
20-Second Alarm
Audible alert
Contact-Free
Under the mattress, nothing on your baby
Ultra-Sensitive
3 sensitivity levels
Long Battery Life
Battery or USB
Your questions, our answers
Everything about the Securidou Movement Monitor
Yes. The sensor is compatible with all standard cot mattresses for your baby, up to 12 cm thick. It simply goes under the mattress, whether in a standard cot, a travel cot or a Moses basket. No complicated installation is needed.
The Movement Monitor and the baby monitor are complementary. The movement monitor keeps track of your baby's movements, while a baby monitor lets you see and hear your baby from a distance. We recommend using the two together. Discover our Securidou Baby Monitor for secure audio and video monitoring.
No, never. The sensor goes under the mattress, between the mattress and the cot base. Your baby sleeps normally without any device worn, no bracelet, no connected sock. It is one of the main advantages: no direct contact, no cable nor accessory around your baby.
The alarm uses a progressive system: it starts softly, then quickly increases in intensity to alert the parents. The volume is designed to wake a sleeping adult.
Free delivery with no minimum order. A tracking number is emailed to you as soon as your order ships.
Our French customer support is available every day of the week (7/7). Reply within 24 hours.
Average response time: 24 hours
Peace of mind
Movement monitor under the mattress, 20-second alarm, no device on your baby. Free delivery. 30-day returns if you change your mind (return shipping at your expense, except for defective products).
Free delivery




