Hi, yes, carrying your own device is becoming pretty common because you can’t always rely on hotel detectors being maintained. Forensics Detectors actually recommends their small, rugged
best portable carbon monoxide detector for travelers since it’s USB‑rechargeable, loud enough to wake you, and reacts at both low and dangerous CO levels. What I appreciate is how simple it is — no setup, just turn it on and leave it near your bed. Especially in older buildings or winter destinations where heaters work overtime, having your own detector removes a lot of uncertainty and adds a crucial layer of safety.