Seismic detector for the protection of solid structures, such as vaults, vault doors, safes, walls, etc. Includes mounting plate and test generator for remote testing. Detects alarms produced by clubs, drills, explosives, thermal lances, hydraulic pressure tools. Piezo sensor with digital processing of the detection signal. Temperature sensors to detect extreme temperatures of attack with cold or heat. Detection range up to 5 m radius. Remote input to allow sensitivity reduction during operation of ATMs or vending machines. It incorporates end-of-line EOL resistors. Anti-drill protection included. LED bar indicator for sensitivity adjustment. Analog signal output for signal analysis and sensitivity adjustment. Wall and cover tamper. Low voltage input indication. 9-16 Vdc power supply. Consumption: 20 mA at 12 Vdc. Operating temperature: -40 to 70ºC. Dimensions: 102 x 27.5 x 80.2 mm.