Teslong NTS500 Inspection Camera with 5-inch Screen vs DEPSTECH DS300 Industrial Endoscope

The NTS500 is the only unit in this group where you can read the sensor resolution, the capture resolution, the screen resolution, and the split IP rating on the same page. That transparency, plus thread-on interchangeable probes in 3.9 mm and 5.5 mm, is worth more than any advertised megapixel count.

Teslong NTS500 Inspection Camera with 5-inch Screen

Buy it

The best-documented borescope here, and the documentation is what makes it the safest buy.

• Teslong's own probe table lists camera resolution of 1280x720 separately from the 1920x1080 capture resolution and the 1280x720 screen, so you can see exactly what the sensor does.
• Probes thread on and swap, with 3.9 mm and 5.5 mm heads in 1 m and 3 m lengths sharing the same monitor.
• The 5-inch IPS panel at 1280x720 with tempered glass is the sharpest screen in this comparison.

• The product page bullet advertises a flat IP67 rating while Teslong's comparison table states IP45 monitor and IP67 probe, so the handset is splash-rated only.
• Focus is fixed, with a stated depth of field of 1.18 to 3.15 inches, which is a narrow working window.
• Stills are written at 1920x1080 from a 1280x720 sensor, so the extra pixels are upscaling rather than detail.

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DEPSTECH DS300 Industrial Endoscope

Buy it

A 5.5 mm semi-rigid probe and a 4.3-inch screen for budget money, which is most of what a homeowner needs.

• The 5 m semi-rigid cable bends and holds its shape, which is what lets you steer a probe into a wall cavity without a second pair of hands.
• 5.5 mm probe head fits spark plug holes and small drilled inspection holes.
• One-button 180 degree image rotation, six adjustable LEDs, and a stated four hours of continuous runtime on a USB-rechargeable battery.

• DEPSTECH markets it as 1080P but does not publish a native sensor resolution for this model, so the number describes the output file, not the tip.
• The stated 170 degree figure on the listing is the screen's horizontal viewing angle, not the lens field of view, which is easy to misread.
• The IP67 rating is described for the probe; the handset is not separately rated on the page.

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Side by side

The bottom line

Our overall pick is the Teslong NTS500 Inspection Camera with 5-inch Screen - The best-documented borescope here, and the documentation is what makes it the safest buy. Choose the DEPSTECH DS300 Industrial Endoscope instead if a homeowner or weekend mechanic who needs to look in a cylinder or behind drywall a few times a year.

Want the full picture, including the other options we compared and the popular one we'd skip? Read the complete The Best Borescopes: 4 Compared (and One to Skip).