The TS-90V is ideal anywhere you might need security checks. It is sensitive enough to detect objects the size of a 25-cent coin. Less expensive than its brand name counterpart, ($60 less), lighter and comes with a carrying case. It sounds a high-pitched tone whenever it detects metal. You can use rechargeable nickel-cadmium battery for power, and recharge it in the Body Scanner. Other noticeable features include a Red LED indicator Light, a De-Sense Button, and optional Earphone Jack. This unit is certified (CE) to the quality and performance with a 2 year warranty.