Secware Posted July 3, 2013 Posted July 3, 2013 I bought a Visonic TOWER-20AM MCW Outdoor Motion Sensor on your web site in November 2012 and I had 4 false errors in the last 2 days. The message that I received on my phone each time is IRP MASKED ! First time I was home and nobody was outside in the Sensor area. The Sensor worked fine for more than 6 month and nothing change on the configuration. I don’t know what to do, could you please help me with that or explain me who can help me ? Quote
accounts3 Posted July 4, 2013 Posted July 4, 2013 The mask alarm does not arise from the unit detecting anything, but because it has not 'seen' anything and therefore believes it has been masked. The sensor is fine Quote
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