# Aeotec door/window sensor 7 with external sensor

**URL:** <https://community.homey.app/t/aeotec-door-window-sensor-7-with-external-sensor/48387>\
**Category:** Questions & Help\
**Created:** [June 13, 2021, 10:44am UTC](https://community.homey.app/t/aeotec-door-window-sensor-7-with-external-sensor/48387 "2021-06-13T10:44:51Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Nicolas\_Mithouard](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/nicolas_mithouard/32/35806_2.png) [@Nicolas\_Mithouard](https://community.homey.app/u/Nicolas_Mithouard)\
**Post date:** [June 13, 2021, 10:44am UTC](https://community.homey.app/t/aeotec-door-window-sensor-7-with-external-sensor/48387/1 "2021-06-13T10:44:52Z")

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Hi  
I have trouble to configure the wma008 sensor.  
I use an external dry sensor (works since contact is on pin 3 and 4 when letter box closed ans no contact when open … controller with multimeter)  
I use raw configuration 1,1,1 to configure as a external sensor  
But the alarm is always on …  
could you help me ?

 ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/6/9/695cb27f2a6c402ebd4bfd0de13e637ab45c2f81.jpeg)  
 ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/3/1/31781af49fc5b3c04584e16db5fcf0defdbf3ae0.jpeg)  
 ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/a/f/af256437685e977f08517f39b8a5f773a337dd84.jpeg)

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**Author:** ![JPe4619](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jpe4619/32/9017_2.png) [@JPe4619](https://community.homey.app/u/JPe4619)\
**Post date:** [June 13, 2021, 12:11pm UTC](https://community.homey.app/t/aeotec-door-window-sensor-7-with-external-sensor/48387/2 "2021-06-13T12:11:51Z")

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Change the setting for “polarity”

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<div class="post-metadata">

**Author:** ![Nicolas\_Mithouard](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/nicolas_mithouard/32/35806_2.png) [@Nicolas\_Mithouard](https://community.homey.app/u/Nicolas_Mithouard)\
**Post date:** [June 13, 2021, 12:35pm UTC](https://community.homey.app/t/aeotec-door-window-sensor-7-with-external-sensor/48387/3 "2021-06-13T12:35:10Z")

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Changed but no effect … as written in the manual …  
A nightmare… I changed many parameters without any effects

 ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/5/2/52ce8d75d12c038947adb83d386480bc5730a568.jpeg)

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<div class="post-metadata">

**Author:** ![JPe4619](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jpe4619/32/9017_2.png) [@JPe4619](https://community.homey.app/u/JPe4619)\
**Post date:** [June 13, 2021, 3:30pm UTC](https://community.homey.app/t/aeotec-door-window-sensor-7-with-external-sensor/48387/4 "2021-06-13T15:30:13Z")

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Why do you use RAW parameter change and not use the setting-option in the device parameter setting? Both should give the same result ofcourse.You did the changes in the advanced settings of the device it selves, I presume? And you activated the device just before the the moment the parameters were sent?

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<div class="post-metadata">

**Author:** ![Nicolas\_Mithouard](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/nicolas_mithouard/32/35806_2.png) [@Nicolas\_Mithouard](https://community.homey.app/u/Nicolas_Mithouard)\
**Post date:** [June 13, 2021, 4:26pm UTC](https://community.homey.app/t/aeotec-door-window-sensor-7-with-external-sensor/48387/5 "2021-06-13T16:26:55Z")

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Yes  
Test with the internal sensor on the table : ok  
Switch to the external with the parameter : ko  
Test with raw : ko

Don’t know what to test more … otherwise I cut the internal sensor and solder the external one … but I would prefer not to do that