Page 1 of 1
Water leakage sensor for RFXtrx433E
Posted: Sunday 27 December 2015 20:16
by niclasc
I'm looking for at water leakage sensor that works with my RFXtrx433E
I'd like to have it behind my dishwasher
Is there a sensor for that?
Re: Water leakage sensor for RFXtrx433E
Posted: Sunday 27 December 2015 21:41
by alfred_j_kwak
What kind of looking have you done?
viewtopic.php?f=17&t=1027
Re: Water leakage sensor for RFXtrx433E
Posted: Monday 11 January 2016 10:57
by niclasc
Why so rude?
I dont want to build a sensor. I was hoping to find one to just buy and connect to Domoticz
Re: Water leakage sensor for RFXtrx433E
Posted: Monday 11 January 2016 11:01
by b_weijenberg
The 433.92MHz version of this sensor is supported by the RFXtrx433(E)
http://www.visonic.com/Products/Wireles ... or-mct-550
Maybe this one can be used as Lighting4 device.
The oscillator resistor must be configured to 3M3
http://www.banggood.com/433MHz-Wireless ... 69573.html
Note that this sensor does not transmit an alive signal or battery empty!
Re: Water leakage sensor for RFXtrx433E
Posted: Monday 11 January 2016 22:20
by alfred_j_kwak
niclasc wrote:
Why so rude?
I dont want to build a sensor. I was hoping to find one to just buy and connect to Domoticz
Was I rude? If so then I'm sorry. On the other hand you said that you were looking. So looking to buy, build or just find? I suppose that you need info about those devices and that is what I tried to offer. Obviously my mistake, but now you have found.
Re: Water leakage sensor for RFXtrx433E
Posted: Wednesday 03 February 2016 14:36
by markk
Hi. I got one of these to try. Can you explain what you mean by "configured to 3M3 please"?
Re: Water leakage sensor for RFXtrx433E
Posted: Wednesday 03 February 2016 18:00
by b_weijenberg
You can configure the oscillator with a 1.5M, 3.3M or 4.7M.
Select 3.3M

- 3M3.JPG (23.33 KiB) Viewed 4790 times
Re: Water leakage sensor for RFXtrx433E
Posted: Wednesday 03 February 2016 23:46
by markk
Sorry to be so stupid, but how do I configure it please?
Re: Water leakage sensor for RFXtrx433E
Posted: Thursday 04 February 2016 8:49
by gertlind1
Bought two of these, see if i can get them to work.
Re: Water leakage sensor for RFXtrx433E
Posted: Saturday 06 February 2016 9:04
by albinsson
I use this :
http://www.nexa.se/vara-produkter/syste ... re/wbt-912

- uploadfromtaptalk1454745878754.jpg (49.87 KiB) Viewed 4666 times
Skickat från min SM-G900F via Tapatalk
Re: Water leakage sensor for RFXtrx433E
Posted: Monday 08 February 2016 20:32
by Scoobydoo
gertlind1 wrote:
Bought two of these, see if i can get them to work.
Any luck with getting these working?. Looking for a simple sensor i can put under my bath.
Re: Water leakage sensor for RFXtrx433E
Posted: Monday 08 February 2016 21:05
by gertlind1
Scoobydoo wrote:gertlind1 wrote:
Bought two of these, see if i can get them to work.
Any luck with getting these working?. Looking for a simple sensor i can put under my bath.
Havent received them yet.
Re: Water leakage sensor for RFXtrx433E
Posted: Thursday 11 February 2016 13:22
by Scoobydoo
gertlind1 wrote:Scoobydoo wrote:gertlind1 wrote:
Bought two of these, see if i can get them to work.
Any luck with getting these working?. Looking for a simple sensor i can put under my bath.
Havent received them yet.
Ok thanks, if you could keep me updated as im interested in installing a couple of these in my property.
Re: Water leakage sensor for RFXtrx433E
Posted: Saturday 05 March 2016 12:19
by gertlind1
Received the stuff today.
Looks good for the price.
Have done some testing.
Enabled the Lightning4 protocol.
Added the battery and dipped the water sensing part in a glass of water, no cigarr.
Made the changes suggested by b_weijenberg a few posts up.
Now i can get it in as Lightning4 switch
However, the switch in Domoticz stays always on (lit) and can't turn it off.
When i dip it water i can see in the logs that it transmits.
Code: Select all
2016-03-05 12:18:32.279 (RFXCOM) Lighting 4 (Vattenlarm)
How do i see what kind of message it sends so i can make a LUA script taking care off the alarms.
Or, maybe it should be added as some other kind if switch??
Re: Water leakage sensor for RFXtrx433E
Posted: Saturday 05 March 2016 15:14
by b_weijenberg
This type of sensor transmit only the ON packet if the sensor is triggered. The state must be changed to OFF by software. Set the state back to OFF after a delay of a few seconds.
Re: Water leakage sensor for RFXtrx433E
Posted: Saturday 05 March 2016 15:48
by gertlind1
Ok, got it to work.
Created a dummy switch that the sensor switch can turn on.
I hided the sensor switch with the $ sign.
A lua turns on the dummy switch the a leakage is detected and sens an Prowl message.
Code: Select all
if (devicechanged['$Vattenlarm']) then
print "VattenLarm AKUT"
commandArray['Läcka Kök']='On'
end
Works as a charm.
Well worth the money.
Thanks for bringing this up in the first place

Re: Water leakage sensor for RFXtrx433E
Posted: Saturday 18 March 2017 16:17
by saarwh
Hello dear experts,
Sorry to bother you in this old post but I couldn't find solutions in other topics (I am a just starting newby).
I have the very same problem as markk (03 feb 2016); configuring the oscillator I take it means remove the solder connection of 4.7M and solder a bridge to 3.3M, I made a dummy switch, but I cannot find the complete code to send a message and set the state of the sensor to OFF?
Please can anybody direct me to solve this issue?
Thanks a lot (and forgive me my lousy English)
Re: Water leakage sensor for RFXtrx433E
Posted: Wednesday 07 February 2018 14:23
by pvklink
Hi all,
I also bought the waterflood sensor:
https://nl.aliexpress.com/item/1-stks-D ... DID%7D&acn
I think this version is already fixed for 433. Does anybody know which battery this devices needs?
There is no description added...