Ting plugs into any wall outlet and monitors the electrical grid of your whole home through microvolt-level harmonics. Arcing faults, loose connections, damaged cords — the stuff that smolders inside walls long before smoke appears — get flagged with days or weeks of lead time. The included 12-month monitoring service means a human team reviews every anomaly and calls you if it looks dangerous.
4.5 stars across 641 ratings. US insurers have started bundling it with homeowners policies, which tells you how well the data holds up.
Who should buy: owners of older homes, anyone whose lights flicker when the AC kicks on. Who shouldn't: renters whose landlords won't act on warnings.
