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Free shipping to US, UK & EU 1-year warranty No audio. No video. Ever.

One sensor, five senses

Air quality Smoke & vape Temperature Humidity Noise

Privacy-safe home monitoring

Vahti Sensor

Air quality, smoke & vape, temperature, humidity & noise — one small plug-in sensor per room. The app is free, no subscription required.

How many sensors?

Vahti Sensor

$99 each — every extra sensor is $85. One per room.

1
$99

Your plan

Vahti Sensor × 1$99
Free app$0
Shipping (US, UK & EU)Free
Due today$99

Vahti+ starts free for 30 days — cancel any time in the app. One plan covers every sensor on your account.

The Vahti app is free — download it while you wait for your sensor.

Download on theApp Store Get it onGoogle Play

Free shipping

To the US, UK & EU

30-day returns

Send it back, no questions

1-year warranty

Registered automatically

No audio, no video

Readings only — never you

What's in the box

Everything you need, nothing to set up twice.

One small box on your doorstep, and about five minutes between opening it and knowing your home is okay.

Vahti Sensor

Plugs into any standard outlet. Backup battery keeps it watching through power blips.

Free app

iPhone and Android. Setup takes about five minutes — no tools, no hub.

Quick-start guide

Three steps from box to peace of mind, in plain language.

1-year warranty

Registered automatically when you set up your sensor.