Invacare Horizon User Manual page 7

Horizon
4.Be aware that adding accessories or components, or modifying the motorized scooter,
may make it more susceptible to EMI; and.
There is no easy way to evaluate their effect on the overall immunity
of the motorized scooter.
5.Report all incidents of unintended movement or brake release to the distributor listed
on the inside front cover of this manual. Note whether there is a source of EMI nearby.
Important Information
1.20 volts per meter (V/m) is a generally achievable and useful immunity level against
EMI (as of May 1994). The higher the level, the greater the protection.
2.The immunity level of this product is at least 20/Vm.
User Manual
5