Ideal Security SOLO Pressure Mat Alarm, With Loud Buzz and Pleasant Chime, Triggered When Stepped On Pressure-sensitive mat alerts you to comings and goings of visitors, intruders, family members, or pets Suitable for outdoor use when covered with a waterproof welcome mat 3 modes: Loud alarm (for security); pleasant chime (for convenience); Off (when you dont want alerts) Alarm volume: 105dB; Chime volume: 90 Db Mat dimensions: 21.75 x 13.75 Easy setup, no installation required. Alarm can be wall-mounted or not Battery operated (9V battery not included) Wire length between alarm and sensor: 30 feet (10 m), can be doubled the SK619 extension Operating temperature -10C to 50C (14F 122F); Trigger sensitivity 1 lb per square inch (PSI)