The verdict
Pick this when you need a wireless doorbell, cost is the main consideration, and the doorbell will live within ~500 ft of the receiver.
Test results
| Signal distance | Rated 500 ft; I measured ~480 ft |
|---|---|
| Wall penetration / interference | Single interior wall is fine; struggles through 2+ |
| Loudness (peak dB at 1 m) | ~80 dB peak, 4 volume levels |
| Battery life | ~2.5 years on the transmitter; plug-in receiver |
| Mobile phone integration | None |
| Smart home integration | None |
What I liked
- Cheapest of the doorbells I would still recommend
- Weatherproof transmitter
- 52 chime options
- Fast 5–10 minute setup
What I did not
- Range is the shortest in this list
- Volume is fine for an apartment, marginal for a house
- Quietest unit in this list
Full review
The SadoTech CXR is the budget reference point. It is the cheapest doorbell on this list, it works, it is weatherproof, and setup is the fastest of any unit I tested. For an apartment or a small house, it is genuinely fine.
I have it ranked last because every other unit on this list does at least one thing meaningfully better. But if your alternative is a $10 Amazon no-name with three reviews, this is the safer call.