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About SteriPEN Traveler Mini Water Purifier

Closeouts. Perfect for backcountry treks and international travel, SteriPEN's Traveler mini water purifier kills 99.9% of bacteria, viruses and protozoa in a half-liter of water in 48 seconds with a touch of a button.


Specs about SteriPEN Traveler Mini Water Purifier

  • Material: Composite
  • Weight: 3.4 oz.
  • Dimensions: 6x1x1-½" (HxWxD)
  • Uses 2 CR123 disposable Lithium batteries (not included
  • Made in China
  • US shipments only


Do you own this product? Write a review and help others with their buying decisions!

4.165467 5 Overall Rating: 4.2 Based on 139 reviews

Most Helpful 5-Star Review

Verified Buyer Reviewed by Patti from Del Norte, CO on Tuesday, December 18, 2012
We've been using steri-pens for years and they've never failed us even is 3rd world countries and using it in water straight out of beaver ponds. We love this one because it's small and lightweight, just right for lightweight backpacking and bike touring.
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Question & Answer

Questions about this product? Get answers from community and staff experts.

  • “If I have a 70 fl oz/2 liters camelbak, can I still use this steripen? ”
    Asked by SeattleHiker from Seattle WA on 8/5/2013 12:23:21 PM
    • It can only purify 1 liter at a time. It has only been tested and certified for volumes up to 1 liter.
      Answered on 8/6/2013 1:15:19 PM by Jack from Sierra Trading Post
  • “Can I use RCR123A 3.0V 900mAh Rechargeable Li-Ion batteries in this unit?”
    Asked by Anon from Unknown on 2/13/2013 12:00:00 AM
    • As mentioned on our website Lithium or Nickel Metal Hydride batteries are strongly recommended for optimal performance.
      Answered on 2/19/2013 12:00:00 AM by Product Specialist...MEL from Sierra Trading Post
  • “Can i use this with rechargeable batteries? I have a steripen with solar recharge capability and wonder about battery compatability”
    Asked by Andi from Unknown on 1/8/2013 12:00:00 AM
    • As mentioned on our website Lithium or Nickel Metal Hydride batteries are strongly recommended for optimal performance.
      Answered on 1/31/2013 12:00:00 AM by Product Specialist...MEL from Sierra Trading Post
  • “How much water can this pen proccess on one battery?||Thanks”
    Asked by Anonymous from Unknown on 3/6/2012 12:00:00 AM
    • You can expect around 50 liters using the CR123 disposable lithium batteries. Have a great day.
      Answered on 3/7/2012 12:00:00 AM by STPGearPro_Ryan from Sierra Trading Post
    • The documentation states 800 gallons on the two required batteries.
      Answered on 3/27/2012 12:00:00 AM by Big Tuna from Palos Verdes, CA.
  • “Does this parasite girardia?”
    Asked by dave from hanover, PA on 2/21/2012 12:00:00 AM
    • For the best understanding of this product refer to the following link:
      Answered on 2/23/2012 12:00:00 AM by Customer care from Sierra Trading Post
    • UV does kill giardia or at least damage giardia so it can't reproduce.
      Answered on 2/27/2012 12:00:00 AM by Bob from Sandy, OR.

    • Does UV inactivate Cryptosporidium (Beaver fever) and Giardia?

      Cryptosporidium and Giardia are what is called a protozoan cyst. Protozoa can be described as microscopic, single celled microorganisms which live in water and are quite a bit larger in comparison to other microbes. The majority of protozoan cysts are parasitic. Both Cryptosporidium and Giardia are parasitic. These organisms are in a dormant phase when in water but when they enter a host (being any kind of mammal) they release colonies and begin to breed, ultimately causing severe diarrhea and dehydration over a prolonged period of time.

      Cryptosporidium and Giardia were not microorganisms of concern until approximately 10 years ago when Milwaukee was hit with a waterborne disease epidemic. Milwaukee drinking water is surface water, which had become contaminated with high concentrations of Cryptosporidium at the time. Over 100,000 people came down with Cryptosporidiosis and over 400 people died. The USEPA recognized that they needed to consider these organisms and include them within their drinking water guidelines. Testing was done and it was found that chlorine was NOT effective against either of the protozoa. Testing was then conducted using UV technology with initial failure due to improper test procedures. Ultimately it was proven that UV is in fact very effective against Cryptosporidium and Giardia. The dose levels required to inactivate these cysts are actually quite low; less than 10 mJ/cm² for 99.9% reduction of both Cryptosporidium parvum and Giardia lamblia.
      Answered on 3/29/2015 4:50:21 PM by Climbhigh from NJ

About SteriPEN

SteriPEN UV water purifiers are the quick, light and easy way to ensure safe drinking water. Bottled water manufacturers and major cities around the world harness the power of UV light to make sure their water is safe to drink; with SteriPEN, so can you! SteriPEN water purifiers go everywhere; whether you’re traveling the world, venturing deep into the backcountry or facing a natural disaster, you can depend on a low-profile and lightweight SteriPEN UV water purifier to kill 99.9% of all viruses, bacteria and protozoa. SteriPEN has received the Water Quality Association’s (WQA) Gold Seal, certifying that SteriPEN purifies water safely and effectively. Furthermore, all SteriPEN water purifiers have been tested by the WQA against the U.S. EPA Microbiological Water Purifier Standard. With SteriPEN, you can feel confident that you’ll get safe drinking water no matter where you are or what emergency you face.