The Kaisi Rosin Pen is a handheld detection tool for locating short circuits on printed circuit boards by atomizing rosin to reveal fault points without direct soldering contact.
Use it during electronics repair, prototyping, and hobby projects to trace intermittent or hidden shorts. The pen allows targeted application of rosin vapor so you can observe where solderable deposits form or where conductive paths change.
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Pen-type design — 15 cm length for precise grip and access to tight board areas.
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Simple operation — insert rosin (sold separately), press button five times, then hold to activate.
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No soldering iron required — non-invasive detection reduces heat exposure to components.
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Rechargeable battery — built-in lithium cell for portable use without tethered power.
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Durable housing — plastic construction for everyday workshop handling.
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Beginner-friendly — minimal training needed for basic short-finding tasks.
Specifications: approx. 15 cm length; plastic body; rechargeable lithium battery; color: black/gray.
Fit: compact, toolbox-friendly size suitable for hobbyists and technicians working on small electronic assemblies.
