ACT Head Impact Tracker Head Sensor Pro measures linear (g-forces) and angular forces (rad/s) acting on your head while doing sports, in in any other usage occasion. The sensor measures what is it attached to, hence it is highly recommend to attach ACT Head Impact Tracker head sensor to your head with a tight-fitting head accessory of choosing. Also when wearing a helmet.
Head sensor can be attached to almost any kind of head accessory or wear with hook&loop (Velcro): variety of hair bands, head bands or helmets. Choose what you use, or buy one of ACT Head Impact Tracker accessories specifically designed for it. What ever your head wear, gear or accessory of attachment, ensure the sensor is firmly attached, and can not move or get loose. Head sensor has to stay put and in place to give quality measurement.
The back panel of the head sensor has an adhesive surface that you can use by removing the protective film on top of it. We recommend that you use the adhesive surface to attach the hook tape to it, with which you can attach the head sensor to the specifically designed ACT Head Impact Tracker headband, ACT Head Impact Tracker Dock or other head accessory of your choosing with loop-side on it, or where you can attach loop side onto. Please note that the adhesive surface is very adhesive, consider carefully where or what you want to attach to it.
If you consider attaching the head sensor to a helmet, refer to your helmet’s User Manual, Owner’s Guide or corresponding document to verify if it is possible. Always follow the helmet manufacturer's instructions on safe helmet use. Only use a helmet that meets the applicable safety standards when you use a helmet with ACT Head Impact Tracker head sensor. Please note that magnitude measurements will be affected by the helmet attachment: forces measured from the helmet are not the same as forces acting on a head inside the helmet.
We do not guarantee that ACT Head Impact Tracker products or services will meet your requirements. We do not guarantee that ACT Head Impact Tracker smartphone mobile Application, sensor hardware or firmware, cloud service or firmware, data transfer or any other part of the products or services, any information obtained or not obtained from using the products or services will be safe, error-free, secure or timely. We do not guarantee that information received or not received when using ACT Head Impact Tracker is safe, timely, accurate or reliable, or that the errors in the products or services are corrected. We cannot guarantee that ACT Head Impact Tracker product or services or any content on them, will always be available or uninterrupted.
(Valid from 26.5.2025)
Products are sold by MJP Group Oy (Business ID FI2643976-7). We sell to adults (18 +) and businesses worldwide.
For customers inside the EU/EEA all prices include Finnish value-added tax (VAT):
• standard 25,5 %
• reduced 14 %
Orders delivered outside the EU/EEA are supplied tax-free (0 % VAT). Local customs duties, taxes and import fees are the buyer’s responsibility.
EU business customers with a valid VAT number may request reverse-charge invoicing — e-mail us at sportheavy@sportheavy.fi.
A valid e-mail address, phone number and delivery address are required. Placing an order means you accept the terms in force on that date. You will receive an order-confirmation e-mail listing the goods, delivery costs and total price. Our logistics partner will notify you by e-mail, phone call or SMS when the parcel is ready for dispatch or pick-up.
Paytrail Plc (business ID 2122839-7) acts as the collecting payment service provider and will appear as the payee on your card or bank statement. The payment is forwarded immediately to MJP Group Oy. Paytrail is an authorised payment institution supervised by the Finnish Financial Supervisory Authority.
Paytrail Plc
Innova 2, Lutakonaukio 7
40100 Jyväskylä, Finland
Tel. +358 207 181 830
www.paytrail.com
PayPal (Europe) S.à r.l. et Cie, S.C.A. provides PayPal payments. It is a Luxembourg-registered credit institution authorised and supervised by the Commission de Surveillance du Secteur Financier (CSSF). PayPal appears as the payee on your PayPal account or card statement and settles the funds to MJP Group Oy.
PayPal (Europe) S.à r.l. et Cie, S.C.A.
22-24 Boulevard Royal
L-2449 Luxembourg
Trade Register: R.C.S. Luxembourg B 118 349
www.paypal.com
Shipping methods and costs are shown on the checkout page after you have selected the destination country.
You may return or exchange any non-food product within 14 days of delivery. Items must be unused, in their original packaging with all tags and factory protective films intact. Include a completed return form. After inspection we refund the product price; shipping fees are not refunded.
If you are outside Finland, you must ship the return yourself to the address listed on the return form.
Custom-made items (e.g. personalised name tags, custom blade profiling) are non-refundable.
Need help? Contact us at sportheavy@sportheavy.fi. If a parcel or product is damaged, photograph the damage, keep the packaging and notify us immediately so we can file a claim with the carrier.
We reserve the right to modify these terms at any time. Please read the current terms before ordering.
MJP Group Oy handles all customer data confidentially and will not disclose it to third parties except as required for payment processing or delivery.