Dual Technology Sensors

[Guest C+K of Old]

Hi all,

It would be a great help if you fellow members could let me know what Dual Technology sensor is the best on the market and why. I am aware that C+K invented the Dual Tec and when they did the microwave side was X Band frequency. I know that every other manufacturer i have looked at have built an X-Band equivulent since. However Honeywell Security (was C+K Systems) has a new Grade 2 and Grade 3 ( EN50131-1 ) Dual Tec using K-Band Technology which is the same technology that police speed cameras use has anybody used it?? I found the microwave stayed in the room much better and it had a much better microwave detection pattern - is this the best on the market to date?

[norman]

Dual Tec using K-Band Technology which is the same technology that police speed cameras use has anybody used it??

Apparently it only detects burglars doing over 36 MPH

[Service Engineer]

I didnt realise that any EN50131 equipment had been released yet..? I thought the requirements were still un-decided..?

[Guest Gimmick]

From a manufacturers point of view, since EN50131 is still current at draft stage (currently Draft-9 I believe) it would be unwise of companies to consider implications of any technologies available to date. Although we are developing a detector that will comply to the higher "levels" identified in EN50131, we have avoided finalising the design . . . in case something fundamental changes (as in DD243, where changes were made right up to the "hilt" of making it mandatory).

Of course if EN50131 continues to follow the trends that DD243 did, then maybe a brick on a string . . dangling about the door would be adequate. . . LMAO !

As always of course, the higher the frequency the less penetration through surrounding walls and surfaces. But . . if the detector is backed with a reliable PIR and not just a throw-together circuit design, penetration should create an issue.