Quick answer
Walk-through detectors differ mainly in how precisely they locate metal (the number of zones) and in extra features: weather protection for outdoor use, people counting, and on some models body-temperature screening. More zones help guards find items faster, which speeds up busy entrances.
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Shop all reader products →Key takeaways
- Single zone: alarms but doesn't say where.
- Multi-zone (for example 6, 18 or 33): lights show where on the body.
- Outdoor use needs a weather-rated model or shelter.
- People counting helps events and venues.
- Pair every arch with a hand-held detector.
01Zones
| Zones | What you get | Suits |
|---|---|---|
| Single | Alarm only | Low-traffic, budget sites |
| Around 6 | Head, body and leg areas | Schools, small offices |
| 18 | Finer height and side location | Churches, hotels, malls |
| 33 | Very precise location | High-traffic, high-security sites |
02Other features
- Adjustable sensitivity levels
- People and alarm counters
- Battery backup
- Weather resistance for covered outdoor use
- Temperature screening (some models)
Current models: walk-through metal detector prices.
03Frequently asked questions
How many zones do I need?
For most churches, schools and offices, a multi-zone detector is worth it; very busy sites benefit from the most zones.
Can a walk-through detector be used outside?
Only weather-rated models, ideally under a shelter.
