Channel Help Alarm Response Kit stainless steel complete option, disabled Toilet alarm comes in a kit solution that meets the BS standard requirement for all disabled toilets to be fitted with an emergency toilet alarm. The HARK+ comes with battery backup as standard. Our system provides a simple to install, compliant, reliable and easy to use solution. Sounder within the reset unit to give audible reassurance that assistance is on the way. Assists in ensuring compliance with the DDA, BS8300 and other care standards.