{pboot:if('The GP‑3003B1 Hand‑held Metal Detector adopts a cyclic switch to toggle between audio alarm and concealed vibration alarm, and supports headphone connection. It delivers high sensitivity for detecting both ferrous and non‑ferrous metals, featuring simple operation and easy adjustment. For special‑requirement scenarios, the auto‑reset function switch can be toggled to suppress detection of small‑size articles. It can detect objects as tiny as a safety pin. Supplied with a leather holster for easy carrying. It supports charging function with two options: direct charging (headphone usable while charging) and desktop charging. When the voltage is insufficient, the indicator lamp will turn off or keep alarming to remind the user. The sensitivity can be flexibly adjusted according to actual security‑inspection requirements.')} The GP‑3003B1 Hand‑held Metal Detector adopts a cyclic switch to toggle between audio alarm and concealed vibration alarm, and supports headphone connection. It delivers high sensitivity for detecting both ferrous and non‑ferrous metals, featuring simple operation and easy adjustment. For special‑requirement scenarios, the auto‑reset function switch can be toggled to suppress detection of small‑size articles. It can detect objects as tiny as a safety pin. Supplied with a leather holster for easy carrying. It supports charging function with two options: direct charging (headphone usable while charging) and desktop charging. When the voltage is insufficient, the indicator lamp will turn off or keep alarming to remind the user. The sensitivity can be flexibly adjusted according to actual security‑inspection requirements. {else} It provides mature application solutions for advertising signs, decorative building materials, craft gifts, 3C electronics, packaging and printing, textile printing, leather color printing and other fields, and realizes the product ecological chain that everything can be printed. {/pboot:if}