Inquiry (采购产品): Wireless Alarm Using a new technology that, among other things, analyzing infrasound. Infrasound is sound that can not be registered by the human mind, sound in 20Hz. Even though humans can not perceive and record infrasound, it is measurable. An example of the emergence of infrasound is when the door or window is exposed to forcing. When a locked door or window is broken up is a change in air mass and infra-sound is created which is recorded by the alarm device sophisticated sensor. This means that breakthrough experiments in principle can be detected before the intruder had entered the room. With the aggressive response from the 2 internal sirens and the wireless also outside siren with flashlight in combination with early detection conditions as best to stop burglary attempt.I will send you moor info. With phots and date on thisitems with e-mail.Detection area: 500 m2 Max + wireless devicesInput delay: 0, 10, 20 or 30 seconds (user setting)Output delay: 45 seconds (factory set)Siren sound power: 120 dB minimum (dual sirens + wireless outdoor siren with strobe light)Power supply: 15v with 230v AC power transformerBattery backup: Approx: 30 hoursPower consumption: Approx: 38 ma (in the armed mode), approx: 390 ma (at alarm)Radio frequency: 433.92 MHzOperating temperature: -10 to +50 degrees celsius (14f to 122f) **** Hidden Message ***** Co:Karlsson Add:Korpralsvagen 4, Jarfalla Stockholm Tel:46-0530-60128,46-768-349083 Email:lennart.053060128@telia.com Contact Person: Mr. Lennart Carlsson Country:Sweden **** Hidden Message ***** lennart.053060128@telia.com
