we have our Shock Sensor GW7we have a new item that no one else has invented yet and only works on shock we have actually used this alot in investigations for the last year as this device isn't a touch sensor its not a vibration sensor is a shock sensor so the device has to be shocked to make the alarm and illumination of the lights light up so if i tapped the box with my finger nothing will happen if i shake the box not much will happen it has to be a sudden shock to the boxso if a sprit moves the box it will be shocked which will then workits a clever device and i haven't seen another one out there so we are very happy to announce this productthe box is so robust it will take a poltergeist to throw the box and it will still work and and not break you can kick the box it will still work that goes for all of our other products we aim to use the highest quality product to give investigators decent equipment to usei have attached a small video above to show you banging against wall it works of a 9v battery please use a duracell battery