Buying Guides

Research-based buying guides that compare the leading options by documented specifications, real use cases and value.

Big display, battery power, tamper-tolerant, and a color the whole class understands. What schools actually need.

Plug-in logging, exportable data and a display people can read from their desks. A step-by-step selection.

Where to put a gas alarm in a kitchen so it catches a range leak without false alarms, and which plug-in and sniffer models fit.

12V propane and dual LP/CO alarms rated for RV temperatures, compared on trip point, current draw, mounting and replacement dates.

Trade-grade sniffers compared: UEi CD100A, RIDGID CD-100, Klein ET120, Amprobe GSD600 and the rechargeable TopTes PT760.

Propane sinks, so the detector goes low. Listed 12V RV alarms, a plug-in home combination unit and a sniffer for the regulator.

Infrared and heated-diode sniffers compared on sensitivity in oz/yr, sensor life, A2L readiness and probe reach, from manufacturer specifications.

Gooseneck and pen-style sniffers compared on range, sensitivity settings, readout and probe reach, from manufacturer specifications.

Listed plug-in methane alarms with battery backup, a display model that reads in ppm, and a sniffer for the follow-up.

A UL-listed plug-in alarm to watch the house and a gooseneck sniffer to find the joint: the two purchases that actually cover a gas leak.

For protection, a certified fixed methane alarm mounted high near the appliances. For finding leaks, a handheld sniffer. Two different products.

A semiconductor sniffer with a gooseneck, adjustable sensitivity, fast warm-up and a tick rate you can follow to the fitting.