Rosewill RSHS-11002 Travel Alarm with Door Clip Alarm Sensor for $4.99 Shipped

Rosewill RSHS-11002 Travel Alarm with Door Clip Alarm Sensor for $4.99 shipped after promo code EMCJHNC82.  Here is a screenshot for your reference. It can be setup by hanging on the door knob and inserting the door clip sensor into the door gap, sounds 100 dB alarm when any vibration is detected and includes a LED light.