Spider Testing Magnet


The achilles heel of nearly all door contacts are that they can be bypassed by stronger magnets.

How so? It’s because the technology in these sensors will react to magnetism from any direction.

Hence, if a stronger magnet presented in its vicinity while the door is closed: That monitored door may be opened without triggering an alarm!

Our Spider Testing Magnet is intended to assist red team pen-testers, alarm companies, installers, security managers and consumers into identifying potential vulnerabilities with their door sensors.

In stock



This Spider Testing Magnet is made of NdFeB. It’s the strongest type of magnet available & up to 20X MORE POWERFUL than the ferrite magnets paired with most door sensors.

Its size & strength is ideal for the forensic testing of various door contact technologies, including:

  • Magnetic Reed Switches
  • Hall Effect Sensors
  • Magnasphere™
  • Spider Door Contact Sensors™

WARNING #1: This powerful magnet may affect your existing door magnets and could demagnetize them. This is especially applicable to door magnets made of Alnico V, which is commonly used in door security applications.**
WARNING #2: This powerful magnet may also cause permanent damage magnetic reed switches.
WARNING #3: Mishandling of these magnets may cause bodily injury or damage to property if handled incorrectly. Keep magnets away from all people wearing electronic medical implants or other medical devices. Keep away from hard drives, electronics, credit cards, & other sensitive electronics.

* All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with SSP, or endorsement.
** SSP shall not be held liable in any way for damages caused or injuries incurred/inflicted onto or by the handler of these magnets. Please follow our safety manual guidelines at all times.
*** This quality product is made in China.

This order is for [Qty 1] 1″ x 1″ x 2″ Magnet only

You may also like…