b'Safe Optional ExtrasSecuritySafe Limpets Piezo Vibration DetectorIntegral Analyser Thermal and Proximity Sensor Magnetic Interference and Supply Failure Detection Connects to your building alarm system Prevents operation of your safe whilst the alarm is activatedSeismic Sensor Detects specific vibrations from unauthorised attempts to penetrate the safe Fast reacting alarm systemHas optimum sensitivity, detecting unauthorised access and preventing false alarms Suitable for noisy environmentsWe can also provide door contacts and opening countersSignal BlockerThe sure defence for contactless cards, keyless vehicle keys and distracted driving. Police Preferred Specification Fits all key fobs, smart cards and phone Blocks all signals from cards, key fobs and phones Blocks GPS tracking Expertly tested to a 99% success rate Double stitched reinforced seams Spare pouch(HxW) 190mm x 115mm'