Door alarms for autism: how to secure your home when a child wanders

In a large survey published in Pediatrics, 49% of parents of autistic children said their child had tried to elope at least once after age four, and 26% said their child had been missing long enough to cause concern. Of those children, 24% were in danger of drowning and 65% in danger of traffic injury.^[1]

Many children leave quietly and quickly, and the National Autism Association notes that more than a third of children who wander can never or rarely tell someone their name, address or phone number.^[2] That is why the first step on almost every prevention list is the home itself: securing doors, gates and the garage, and adding simple alarms so an adult knows at once.^[2]

An alarm buys you the first few seconds. The National Center for Missing & Exploited Children (NCMEC) says drowning most often happens within a few hundred feet to half a mile of where a child went missing, and within minutes.^[6] Hearing the door is what lets you act inside that window.

• Door open alarms and chimes. A small sensor on the door and frame sounds when the two separate. Put one on every outside door, including the door to the garage and any back or side door. A chime that sounds in the room where you sleep matters most at night.
• Window alarms. The same idea on any window your child can reach and open, especially on the ground floor.
• Gate alarms. For a yard gate that leads to a street or a neighbour’s yard.
• Pool and water alarms. The National Autism Association lists gate, pool, window and door alarms together with fencing and self-latching gates as water safety measures.^[4]
• Baby monitors. The National Autism Association suggests simple door or window alarms and baby monitors as part of securing the home.^[2] A camera pointed at the main door lets you check without getting up.

When choosing, look for an alarm loud enough to hear from the furthest bedroom, a chime you can tell apart from the doorbell, and batteries you will remember to change. Test every alarm when you change the clocks.

An alarm tells you a door opened. A lock or latch placed higher than your child can reach slows them down. Many families add one to each outside door, and a latch on the yard gate.

Before you add any lock, think about fire. Ready.gov advises finding two ways out of every room, making sure windows are not stuck and that security bars can be opened properly, and practising your escape plan twice a year.^[5] For a family with a child who wanders, that means:

• Every adult and older child in the home can open every lock quickly from inside, in the dark.
• If a lock needs a key, the key lives next to the door, out of your child’s reach but never in another room.
• Your fire escape plan includes who carries or guides your child out.
• You teach your child not to hide from firefighters, as Ready.gov advises.^[5]

If you are unsure whether a lock is safe for your home, ask your local fire department.

For many children, a picture works better than a word. The National Autism Association suggests visual aids such as stop signs on doors, windows and pool gates.^[4] A bright stop sign at your child’s eye level on every outside door is a reminder every time they reach for the handle.

Pair it with a short social story about the door: we stop at the stop sign, we find a grown-up, we go out together. The National Autism Association also recommends social stories for water safety.^[4] Practise it when everyone is calm, not when your child is already at the door.

Alarms deal with the moment of leaving. The National Autism Association also suggests working on why your child leaves: identifying triggers, teaching safety, and offering a safe space as an alternative, such as a small tent or a quiet nook.^[2]

• Write down every attempt. The time, the door, what was happening just before. Over time, patterns can show up.
• Plan for busy times. NAA advises extra vigilance during transitions, parties, vacations, visits and times of noise or commotion.^[2] Those are the days to check every alarm is on.
• Make the safe space better than the door. Somewhere quiet and familiar, with the things that calm your child, that they are always allowed to go to.

The National Autism Association has offered a free Big Red Safety Box to families of children who wander. It includes two wireless door or window alarms, adhesive stop sign prompts for doors and windows, an ID bracelet or shoe tag, a window cling and a child ID kit.^[3] It is given out when in stock, so check the page for whether it is available now.

The same page reminds families to keep close supervision whatever tools they use.^[3]

The National Autism Association’s rule for a missing person with autism is to call 911 and search water first.^[2] NCMEC reports that in 2025, at least 104 children and young adults with autism who went missing were found deceased, and 87% of them drowned.^[6] Our free first 10 minutes checklist sets out what to do next, and our guide to water safety and wandering explains why water comes first.

Tell your neighbours too. Our neighbour letter lets them know your child may wander and what to do if they see them alone.