Camping Essentials | Water Filtration & StorageSteri-PenSold by Sportsmans Guide

Steri-Pen

SteriPEN Classic 3 UV Water Purifier

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Portable Uv

Water purifier designed for travel

Simple Operation:

Remove the lamp cover, press

Led Indicators

Show when water is safe

Treats Water

In 90 seconds

Effective Against

Viruses, bacteria, and protozoa

$99.95
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SKU: WX2*0704226

Overview

Built for travelers who need a compact way to treat drinking water, this UV purifier is designed to make questionable water safer without boiling, tablets, or pumping. Operation is straightforward: remove the lamp cover, activate the unit, submerge it in water, and stir while the LED indicators show when treatment is complete. It is intended for use abroad and in other situations where protection against viruses, bacteria, and protozoa matters. The trade-off is that it relies on batteries and a UV lamp, so it is best suited to users who want a simple treatment method and are prepared to manage power and lamp status.

Why Hunters Choose the Steri-Pen

Portable Uv

No boiling, tablets, or pumping

Treats Water

In just 90 seconds for

Effective Against

Viruses, bacteria, and protozoa

Uv Light

Destroys over 99.9% of waterborne

Enhanced Led

Panel shows treated water status,

Key Features

  • Portable UV water purifier designed for travel and outdoor use.
  • Simple operation: remove the lamp cover, press activate, submerge, and stir.
  • LED indicators show when water is safe to drink.
  • Treats water in 90 seconds.
  • Effective against viruses, bacteria, and protozoa.
  • Compatible with alkaline, lithium, and NiMH batteries.

Best Used For

  • Travelers abroad who need a portable purifier effective against viruses, bacteria, and protozoa.
  • Users who want simple water treatment without boiling, pumping, or waiting for tablets to dissolve.
  • Backpackers needing a compact purifier with clear LED status indicators for treated water.
  • Campers and hunters managing water from uncertain sources and wanting fast, battery-powered treatment.
  • Users who prefer compatibility with alkaline, lithium, and NiMH batteries for flexible field use.

Specifications

Activation MethodRemove lamp cover, press activation button, submerge in water and stir
Additional Battery CompatibilityLithium and NiMH batteries
Approximate Water Treated50 liters
Battery CompatibilityAlkaline batteries
Battery Life IndicatorYes
Battery Type4 alkaline batteries
Boiling Requiredfalse
Effective AgainstViruses, bacteria, and protozoa
Enhanced Led PanelYes
Kills Virusestrue
Lamp Life IndicatorYes
Led IndicatorsYes
Microorganism ReductionOver 99.9% of waterborne microorganisms
Portabletrue
Protective Lamp CoverTwists off
Pumping Requiredfalse
Tablets Requiredfalse
Treatment Time90 seconds
Uv Purifiertrue
Water Safe IndicatorYes

Pros

  • Portable UV purification with no boiling, tablets, or pumping required.
  • Treats water in just 90 seconds for quick use on the move.
  • Effective against viruses, bacteria, and protozoa.
  • UV light destroys over 99.9% of waterborne microorganisms that cause illness.
  • Enhanced LED panel shows treated water status, battery life, and UV-lamp life.
  • Compatible with alkaline, lithium, and NiMH batteries.

Considerations & Trade-offs

  • Requires batteries to operate, so it depends on having fresh power available in the field.
  • Treats water by UV light rather than filtration, so it is designed for clear water use and does not remove sediment or debris.
  • Each treatment takes about 90 seconds, which is quick but not instant when you need to process multiple bottles or larger volumes.
  • The unit relies on the UV lamp and status indicators, so you need to monitor battery life and lamp life during use.

Suggested Comparisons

  • Portable water purifiers
  • Water treatment tablets
  • Water filters
  • Backpacking hydration accessories

Suggested Accessories

  • Water storage container
  • Replacement batteries
  • Water bottle
  • Carrying case

Frequently Asked Questions

What does the SteriPEN Classic 3 do for water treatment in the field?

It uses UV light to treat water and is described as effective against viruses, bacteria, and protozoa. The product text says it destroys over 99.9% of waterborne microorganisms that cause illness.

How is the SteriPEN Classic 3 used?

The listed steps are simple: remove the lamp cover, press the activation button, submerge it in water, and stir. LED indicators flash to show when the water is safe to drink.

How long does treatment take?

The product description says it converts water in just 90 seconds.

What batteries does the SteriPEN Classic 3 use?

The description says it is the first SteriPEN to work effectively with alkaline batteries, and it is also compatible with lithium and NiMH batteries. It also states that 4 alkaline batteries treat approximately 50 liters of water.

What status information does the unit provide?

The enhanced LED panel tells you the status of treated water, battery life, and UV-lamp life.