An old Android phone makes a workable baby monitor: install AndrIoT on it, pair it with your own phone or laptop through a 6-letter code, and you get live video, two-way audio, the room temperature and a sound-level alert. It is a good fit for a nursery, a sibling room or a nap spot, as long as you place it safely and treat it as a helper, not a medical device.
This guide shows the setup, the placement rules that matter for babies, which settings to use for sleep, and where a purpose-built baby monitor is still the better choice.
Key takeaways
- You get live video, two-way audio, a temperature reading and sound-level alerts from the same phone.
- Place the phone out of reach of the cot and keep every cable at least one metre (3 feet) away from the baby.
- Use a stand or wall shelf, not the cot rail, and check the camera view every time you move it.
- A phone camera has no infrared night vision, so use a dim night light for a visible picture.
- This is not a medical or safety device. It does not replace safe sleep practice or checking on your baby.
Why use a phone instead of a baby monitor
Dedicated baby monitors usually come with a small screen and a limited range. A phone-based setup trades that for a screen you already carry. You can watch from the sofa, the kitchen or the office, you can talk to the room from anywhere, and the same phone later becomes a pet camera or a plain security camera when the baby grows up.
| Feature | Old phone with AndrIoT | Typical dedicated monitor |
|---|---|---|
| Where you can watch | Any browser, any network | Handset or app of that brand |
| Two-way audio | Yes, through the phone speaker | Usually yes |
| Room temperature | Yes, from the phone sensor reading | Often a built-in sensor |
| Night vision | No infrared; needs a night light | Often infrared |
| Cost | Your old phone plus a plan | One-off purchase |
| Works without internet | No, needs Wi-Fi | Many models work on a local link |
The last two rows are the honest trade-offs. If you want to see the baby in a pitch-dark room or need a monitor that works during an internet outage, a dedicated monitor with infrared is the better tool.
Step-by-step setup
Allow about 15 minutes, including placement.
- Pick the phone. Choose a phone with a working camera and a healthy battery. If the back cover is bulging, do not use it near a baby. Read the 24/7 power guide for the signs.
- Install the app. Download the Android app (Android 5 and newer) or the Legacy app (Android 4.1 to 4.4) and run the 6-step wizard.
- Pair it. In the dashboard at app.andriot.net press Add Phone and scan the QR code, or type the 6-letter code on the phone.
- Exempt the app from battery saver. The wizard walks you through this. Without it Android may stop the app overnight.
- Position the phone. See the placement rules below, then check the live view from your own phone.
- Set the alerts. Turn on motion alerts for the cot area and, on Standard and Pro, the sound-level (decibel) alert. Send them to push notifications.
- Test at night. Switch the lights off, add a night light, and confirm that you can see the cot and hear the room.
Placement and safety rules
Cables and cots are the main hazard here, not the software. General child-safety guidance from health authorities is to keep cords out of reach of babies. These rules follow from that.
- Keep the phone and its charging cable at least 1 metre (3 feet) from the cot, and never inside it.
- Do not attach the phone to the cot rail or any part of the cot.
- Use a wall shelf, a high dresser or a mount fixed to the wall, with the cable secured along the wall.
- Do not cover the phone with a blanket or a case that traps heat, because it will warm up on a charger.
- Make sure the phone cannot fall into the cot if bumped.
- Check that the screen is dim or off so it does not light the room.
Follow your local safe sleep guidance for the cot itself. The monitor adds a view, it does not make a risky setup safe.
Settings that suit a nursery
- Lens: use the lens that points into the room. Front lenses are often lower quality, so a back lens on a stand is usually sharper.
- Quality: 720p or 1080p on Wi-Fi is plenty. Lower the bitrate if the picture stutters.
- Motion zone: draw a zone over the cot only. A zone over the door or a window creates false alerts from shadows and car lights.
- Sound alert: on Standard and Pro you can alert when the sound level passes a threshold. Start near the middle and adjust after a night or two.
- Temperature: the dashboard shows the temperature reading from the phone. Treat it as a guide: a phone on a charger runs a little warmer than the room, so compare it once against a room thermometer.
- Talking: use the two-way audio for a soft word, or text-to-speech for a pre-typed phrase. See the two-way audio guide.
Night picture and light
This is where a phone is weakest. There is no infrared illuminator, so in total darkness the picture is black. Two practical fixes work well.
- A low-power night light that you place so that it does not shine into the lens. A warm amber light is easier on sleep than a bright white one.
- Avoid using the phone flashlight as a night light. It is bright, it heats the phone, and it will wake the baby.
The picture will look grainy at low light, which is normal for small phone sensors. You are looking for movement and posture, not detail.
Wi-Fi, power and reliability
A monitor you cannot rely on is worse than none. Run through this once a week.
- Open the live view and confirm the phone is online.
- Check the battery level and that it is charging.
- Look at the phone for heat or swelling.
- Make sure the router has not rebooted and moved the phone onto a weak signal.
- Test the alert by clapping or making a noise.
If you run the phone around the clock, use the smart-plug battery cycling described in the power guide so the battery does not sit at 100% all day.
Privacy for a family camera
Baby footage is sensitive. Live video goes straight from the phone to your browser over an encrypted connection, and nothing is stored unless you turn recording on. Servers are in the EU, and your video is not used for ads. Use a strong, unique password or Google sign-in, and do not share the dashboard login with people who do not need it. The privacy article explains how this differs from cloud cameras.
Pros and limits
Pros
- Watch from any browser, and talk to the room from anywhere.
- Temperature and sound-level readings on the same screen.
- No extra hardware, and the phone has a second life as a pet camera or home camera later.
- You can add motion alerts for the cot area.
Limits
- No infrared night vision, so you need a night light.
- Needs Wi-Fi and power. If the internet goes down, so does remote viewing.
- Not a medical device and not a replacement for safe sleep practice.
- A phone on a charger runs warm, so it needs airflow and a safe spot.
- Old cameras produce a grainy picture in low light.
FAQ
Is it safe to use a phone as a baby monitor?
It can be, if the phone and cable are kept well away from the baby, the battery is healthy, and the phone is not covered. Do not use a phone with a swollen battery. Follow local safe sleep guidance and treat the app as a helper, not a safety device.
Can I talk to my baby through it?
Yes. Two-way audio lets you speak through the phone speaker, and text-to-speech can say a typed phrase. Keep the volume low.
Does it show room temperature?
The dashboard shows the temperature reading from the phone. It runs slightly warm on a charger, so compare it with a room thermometer once and treat it as a guide.
Will it work in the dark?
Only with some light. Phones have no infrared night vision, so use a dim night light placed away from the lens.
Can I watch on my own phone?
Yes. Open the dashboard in any browser on your phone, tablet or laptop. There is no separate parent app to install.