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      head Impact indicator for concussion awareness
      Attach Tozuda to any helmet and know exactly when an impact is hard enough that you need to get checked out.
      concussions ACCOUNT FOR 2.8 MILLION EMERGENCY ROOM VISITS ANNUALLY
      Hits are going to happen and making the wrong call is dangerous. The best thing you can do to protect yourself is know when an impact is significant enough to require medical attention. Because when you know what to look for, you can react quickly and according to plan.

      Whether you play multiple sports, are on the job site, or simply love to ride your bike, set yourself up with next level protection by adding an impact indicator to your equipment checklist.

      This easy-to-use attachment is designed to give helmet wearers confidence by providing visual, objective information when a hit is too hard, ensuring a head injury doesn’t go undetected.
      Back of motorsport helmet with Tozuda indicator attached.
      Snowboarder on slopes with Tozuda indicator attached to back of helmet.
      Player on field wearing maroon lacrosse helmet with Tozuda indicator attached to back of helmet.
      Worker on job site with Tozuda indicator attached to back of dark blue industrial helmet.
      Hockey player on the ice with Tozuda indicator attached to back of red helmet.
      Mother and daughter out for a bike ride with Tozuda indicator attached to back of child's helmet.
      why helmet wearers everywhere trust tozuda

      BEFORE & AFTER SERIOUS IMPACT

      Indicator before impact.
      Indicator after impact.

      Mechanical Design

      With a completely mechanical build, there's no need to fiddle with digital elements. No wifi, no Bluetooth, no charging; just attach a sensor to your existing helmet and you're ready to go.

      Detection Without Question

      If an impact is forceful enough to cause potential injury, the sensor will change from clear to red.

      "If it's red, check your head!"

      Lab & Field Tested

      Our Indicators are thoroughly crafted to withstand a certain threshold and tested for accuracy. 

      Sophisticated & Functional

      For sports requiring specific attire, we designed a sleek indicator cover that easily attaches and blends in with your helmet so you can focus on the job at hand without having to worry about the details.

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      get prepared with next level protection
      Tozuda's Indicator will turn from clear to red if hit with excessive force, signaling the need to be evaluated by a medical professional. Our unique calibration process only triggers for potentially dangerous crashes, falls, and hits, allowing for normal use and minor impacts.
      Sale Off
      Tozuda Head Impact Indicator
      $49.99
      Preset options are available for youth ages 8-13 and adult ages 14+
      what our customers are saying

      "Hockey is a really intense game, I've taken big hits before and when the adrenaline is pumping you don't really notice it. This indicator will give you the peace of mind to play your hardest. The Tozuda Head Impact Indicator allows coaches and everyone to see right away when a bad hit has happened. I'd recommend this product to any hockey player on any level."


      Ben Smith | Former College Hockey Player

      "Seeing your child get hit at a high rate is probably the most nerve-racking part of (football). But the Tozuda Head Impact Indicator is a great tool for us to play smarter and safer. It gives our staff, myself, parents, if we notice someone's indicator is red, we can get them off the field and checked out. Tozuda is an excellent tool that we can use to help us on the sidelines."


      Steve Martel | Football Parent & High School Coach

      "I see my kids hit their head often, and you don't always know if you have to bring them to the doctor. It's really important to us that our daughter has her Tozuda Head Impact Indicator on her helmet so when she fell and hit her head we knew whether or not we needed to get medical attention. I would definitely recommend it for other moms, and even adults because knowing if your own brain is okay is also very important."


      Amberlee Venti | Mother & Bicycle Rider

      an indicator for every helmet

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      WARNING: This device is intended to measure force of impact and is not a medical device or diagnostic tool by any meaning. Force of impact is one of many indications of potential injury and/or concussion. If any indications of a concussion are present, promptly see a licensed medical doctor for diagnosis and treatment. Use this device as directed and only for the use of measuring force of impact. You should seek medical attention for any injury or concussion that occurs while wearing this device. Tozuda has no control over the activities that may cause injury or concussion and cannot provide any medical advice or treatment.