Extech Instruments BR300 User Manual page 2

Introduction
Thank you for selecting the Extech Instruments Model BR300/BR350 Waterproof Borescope. The
Waterproof Borescope can be fully immersed in water (to 1m) for up to 30 minutes. The
BR300/350 has a 6.8 cm (2.7") color TFT LCD glare‐free, close‐up field of view, monitor. The
camera lens includes LED search‐lights affixed on a flexible gooseneck cable (that retains the
configured shape) for easy insertion in pipes, ducts, and other areas. This device is shipped fully
tested and, with proper use, will provide years of reliable service. Please visit our website
(www.extech.com) to check for the latest version of this User Guide, Product Updates, and
Customer Support.
Safety

Keep work area clean and well lit. Accidents are more likely to occur in cluttered and dark
or dimly lit areas.

Do not operate this device in explosive environments such as in the presence of flammable
liquids, gases, or dust.

Do not use this device in areas where contact with electrical wiring or electrically charged
circuits or devices is likely. Contact with charged or live circuits and devices can cause this
device to conduct electricity to the user resulting in severe injury or even death.

Do not use near moving machinery, appliances, or other moving or rotating objects.

Do not use this device near sources of heat.

Do not allow children to use this device, its accessories, or the batteries.

Do not use this device in rain or other wet conditions for long periods.

Use common sense when using this device; stay alert and concentrate on the task at hand
to avoid accidents.

Use personal protective clothing, eye protection, and other protective gear as needed when
operating this device.

Do not over‐reach when using this device; keep proper footing and balance at all times.

Remove the batteries if the device is to be stored for longer than 60 days.

Never dispose of batteries in a fire. Batteries may explode or leak.

Never mix battery types. Always install new batteries of the same type.
Considerations and Maintenance

This instrument is not intended for medical use of any kind

Store the instrument out of the reach of children and do not allow person unfamiliar with
this device to use it

Check for misalignment or binding of the moving parts and for damage or any other
condition that may affect this instrument's safe operation; do not use this device if it emits
fumes or smoke. Have the unit repaired before use if any of these conditions are noticed.

Clean only with a dry or damp cloth. Do not use abrasives, solvents, or scouring agents.

Remove the battery before cleaning

Have the unit serviced by qualified personnel only; Do not dis‐assemble this instrument
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2 BR300‐BR350‐EU‐EN v1.2 12/13
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