Description Highly Sensitive – Sensitivity Adjustor provided externally | Detects Ferrous & Non-Ferrous Metals | No False Alarms Detects medium sized pistol from 9 inches, large knife from 6 inches, razor blade and box cutter from 3 inches, foil wrapped tiny jewelry from 1 inch DURABLE BODY: ABS Moulded Detection Search Head & Powder Coated Metal Cabinet || BATTERY TYPE: 9V ‘UNIROSS’ Rechargeable Battery || Operating Temperature: -5*C to 55*C Audio-Visual LED Indications for POWER ON, METAL DETECTION, LOW BATTERY WARRANTY SERVICE TYPE:: 1 YEAR Comprehensive Warranty || Customer must retain bill/invoice to claim warranty in the future. Call on FOS Helpline for warranty claims, if any.