StoveGuardian by OzBits
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Coming to Kickstarter

Left a burner on? It calls you.

A battery puck that sits above any stove, with no wiring. While you cook it stays quiet. If a burner is hot and nobody's around, it sounds an alarm, and if nobody comes back, it calls your phone.

Early bird $89 for the first 100 backers. Retail $130.

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The real case and circuit board: 130 mm across, 29 mm tall, plus a 3 mm twist-lock plate that goes on the hood. Choose Taken apart to see the board inside: battery holders, radar, and the heat sensor on the underside.
How it decides

Two sensors. One question: is anyone watching that pot?

An infrared sensor reads the heat on your cooktop from above. A small 24 GHz radar notices people in the kitchen, even when they're standing still. StoveGuardian only steps in when both answers point the wrong way.

Someone in the kitchen
Kitchen empty
Stove hot
Quiet

You're cooking

It sees you nearby and leaves you alone. No beeping at you mid-stir.

Alarm, then call

Burner left on

After a while with nobody around, it sounds a loud alarm. If no one walks up, it calls your phone.

Stove cool
Quiet

Just passing through

A quick heat check, then straight back to sleep to save battery.

Asleep

Nothing to watch

It still wakes on its own now and then to check the burners.

One evening, step by step

What a forgotten pot looks like

An example of the sequence. The times are illustrative.

  1. Pasta water goes onHeat rises, someone's at the stove. Quiet.
  2. Phone rings in the other roomThe kitchen empties. StoveGuardian starts counting.
  3. Alarm soundsBurner still hot, still nobody nearby. A loud alarm goes off in the kitchen.
  4. Your phone ringsNobody came back, so it calls you, or whoever you chose: you, your daughter, a neighbor.
  5. Someone walks upThe alarm stops as soon as a person reaches the stove.
Setup

Up and running in a few minutes

Mount it

Twist the puck onto its magnetic plate above your stove. No plug, no wiring, no electrician.

Connect it

Join it to your home Wi‑Fi from your phone. You do this once.

Forget about it

It wakes by itself, checks the burners, and goes back to sleep.

Why this one

Made for the kitchen you already have

No installation

Most stove shut-off devices need an electrician or sit between the stove and the outlet. This one runs on 3 AA batteries and mounts in seconds.

Knows when you're cooking

The radar sees you in the room, so it won't nag you while you cook.

Calls a real phone

A beep in an empty house helps nobody. StoveGuardian calls you, your mom, or whoever you pick.

Any stove

Gas, electric, or induction. It reads heat from above, so the stove itself doesn't need to be smart.

Specs

What's inside the puck

Heat sensor
MLX90614 infrared, non-contact
Presence
24 GHz mmWave radar
Brain
ESP32-S3 with Wi‑Fi
Alarm
Loud piezo, stops when someone walks up
Power
3 × AA, or USB‑C
Battery life
Being measured in our own kitchen
Updates
Over Wi‑Fi, automatically
Mount
Twist-lock onto a magnetic plate
Please read

StoveGuardian tells you a stove was left on. It does not turn the stove off, and it does not replace a smoke detector.

Phone calls go through our own calling service, $18 a year. Kickstarter backers get the first year free.

It has been running in our own kitchen on a custom circuit board, with over-the-air firmware updates, while we finish testing.

Kickstarter rewards

Back it early, pay less

Planned pledge levels. Shipping is charged separately.

Standard

StoveGuardian

$99$130 retail

One StoveGuardian, plus a year of calling service.

Two homes

2‑pack

$189$260 retail

One for your kitchen and one for a parent's. A year of calling service on both.

Questions

Before you ask

Does it turn off my stove?

No. It alerts you with a loud alarm and then a phone call. Turning the burner off is still up to a person.

Will it go off while I'm cooking?

No. The radar can tell someone is in the kitchen, even standing still at the counter, so it stays quiet while you're there.

Who does it call?

You choose the number. Many people set it up for a parent who lives alone and have it call their own phone.

What if the Wi‑Fi is down?

The alarm in the kitchen works without Wi‑Fi. The phone call needs Wi‑Fi to reach our calling service.

Does it work with gas, electric, and induction?

Yes. It reads heat from above with an infrared sensor, so it works with any cooktop.

When does it ship?

About four months after the campaign ends: final board revision and mold order first, then FCC testing and a 20-unit pre-production run, then mass production.

Launch list

Hear when the campaign goes live

Early-bird units at $89 are limited to the first 100 backers. We'll email you once, on launch day.