Knowledge centre
Guides that explain what the figures on a specification sheet actually mean, so you can compare suppliers on something real. Written from the published specifications of the equipment we supply.
How to Choose a Walk Through Metal Detector
Zone count, sensitivity resolution and throughput decide whether a gate works at your entrance. Here is what each figure actually means.
Handheld Metal Detector Wands What the Specifications Mean
Detection distance, calibration behaviour and battery endurance separate wands that work on a real shift from wands that look the same on paper.
What Metals Can a Metal Detector Detect
Ferrous and non-ferrous metals behave differently in a detection field, and stainless steel is consistently the hardest to find.
What to Check When Buying an X-Ray Baggage Scanner
Tunnel size, penetration, resolution, dose and duty cycle are the five figures that decide whether a scanner suits your lane.
The Three Metal Detection System Types in Food Processing
Conveyor, gravity-fall and pipeline systems each cover product the others cannot reach. Most plants need more than one.
Metal Detector or X-Ray for Food Inspection
The choice is decided by your hazard analysis and your packaging, not by budget. Each misses things the other catches.
Why Detection Sensitivity Falls as the Aperture Gets Bigger
The single most useful thing to understand before specifying any inline detector, and the reason oversized apertures quietly waste money.
Under Vehicle Inspection Mirrors Cameras and Scanners Compared
Three different tools for the same job, separated by what they record and how many vehicles you have to process.
Metal Detectors in Schools A Practical Guide
The equipment decisions that determine whether school screening works in practice: false alarms, accessibility, power and weather.
How to Read an X-Ray Scanner Specification Sheet
AWG, penetration resolution, typical versus guaranteed, and measurement distance. The four places specification sheets hide the real answer.
Mono or DD Search Coil and What Size to Buy
Winding pattern is decided by your ground, and coil size by your site. Getting either wrong wastes a season.
Trace Detection for Explosives and Narcotics How It Works
Trace detection finds residue left by handling, which is how a checkpoint catches someone carrying nothing at that moment.
Finding Electronic Devices That Are Switched Off
An RF sweep finds transmitters. A non-linear junction detector finds the semiconductor, which is why it works on a device that is powered down.
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