Inspection cameras help you see into tight, dark, and inaccessible spaces—inside walls and conduits, above ceilings, behind panels, within ducts, and down drains—without teardown. Ideal for electricians, HVAC techs, plumbers, facility maintenance, and home inspectors, these cameras speed up troubleshooting, confirm repairs, and create reliable documentation with photo and video capture.

Common types include handheld borescopes with built-in screens, Wi‑Fi endoscopes that stream to a phone or tablet, snake cameras with flexible probes for general inspection, and push‑rod pipe cameras designed for longer runs in drains and sewers. Many offer articulating tips for precise viewing, dual‑lens or side‑view options for wider coverage, and bright adjustable LEDs to cut through dust and darkness.

Key features to consider:
- Probe diameter and flexibility: 4–9 mm fits most conduits and tight cavities; stiffer push strength helps in longer runs.
- Resolution and optics: HD or Full HD sensors, good low‑light performance, digital zoom, and glare control improve clarity.
- Lighting: High‑output, dimmable LEDs reduce hotspots and reflections on shiny conductors.
- Waterproof and durability: IP67/IP68 for wet environments; drop resistance and abrasion‑resistant sheathing extend service life.
- Cable length: Short (1–2 m) for panels and equipment; longer (5–30 m) for ducts and drains.
- Articulation: 2‑way or 4‑way articulation targets specific angles around bends and terminations.
- Connectivity and recording: Onboard display, SD card storage, or Wi‑Fi/Bluetooth apps for sharing reports.
- Power: Removable batteries or USB‑C charging; check runtime for a full service day.

Practical benefits include faster fault finding, less invasive inspections, better safety by keeping distance from energized equipment, and clearer communication with clients through recorded evidence. Use a magnet or hook accessory to retrieve dropped fasteners, verify conductor markings with a side‑view mirror, and choose a smaller probe to navigate crowded panels. For wet or corrosive areas, select a waterproof, chemically resistant probe. Always de‑energize circuits, follow lockout/tagout, and inspect the probe jacket before each use to maintain safety and image quality.