Optex MX-40PT Dualtech detector - pet

The Optex MX-40PT is a wide angle pet immune dualtech (passive infrared and microwave) detector with a range of 40'x40' or 12mtrs x 12mtrs.  It is designed to be effective where there are smaller pets or even unwelcome wildlife like Mice or Rats for example in a domestic garage.  The detector will cope with a cat, or a small dog up to 16" high but the detector in that case would need to be located in a room with a normal room temperature rather than in a very cold garage for example.  The model MZ-40QZ is also available and comes without the pet immunity feature.  Another model in the range is the MX-50QZ (no pet immunity) but with a range of 50'x50' or 15mtrs x 15mtrs.  These detectors are very reliable and to date we have not had a single one go faulty (hope I have not just tempted fate).