Electronic Alarms and Home Security Devices - Concord 4 & GE Wireless Water Sensor (NX695) Issue

I have two NX695 water sensors that went into alarm without being wet. One unit worked just fine for a few months, and then just tripped alarm. I reset alarm and it tripped again. So i pulled batteries and of course now it was sensor trouble so i removed it from system. Second unit tripped 2 days ago after about 12 months in service. i measured batteries in it and it was 2.70v, (1.35v each). I have another unit still in service, haven't tripped yet but it was installed at the same time as the other two and voltage in that one also 2.70v.

Are these units just not reliable at all or what? I just cant trust them. Is there alternative to these water sensors? I have total of 3 of them, but 2 i can make wired, i just don't know what to attach to the other end of the wire to make it sense water.

Thanks

Depending on how damp the location is, it's not unheard of for water sensors to trip just from accumulated atmospheric moisture. What you may need is to simply give the unit you have a good cleaning with canned air, and possibly a stay in a bag with some of the little bags of dessicant that come in most electronics boxes.

There are a number of hardwired water sensors out there.

GRI has several: 2600 12 Volt DC Water Sensor (http://www.grisk.com/specialty/2600water_sensor.htm)

GE also has a couple of hardwired ones, as does Ademco (http://library.ademconet.com/MWT/fs2/1/4360.pdf)

Many of the standalone water alarm products also have relay contacts that can be connected to a security alarm as a contact point.

Depending on how damp the location is, it's not unheard of for water sensors to trip just from accumulated atmospheric moisture. What you may need is to simply give the unit you have a good cleaning with canned air, and possibly a stay in a bag with some of the little bags of dessicant that come in most electronics boxes.

There are a number of hardwired water sensors out there.

GRI has several: 2600 12 Volt DC Water Sensor (http://www.grisk.com/specialty/2600water_sensor.htm)

GE also has a couple of hardwired ones, as does Ademco (http://library.ademconet.com/MWT/fs2/1/4360.pdf)

Many of the standalone water alarm products also have relay contacts that can be connected to a security alarm as a contact point.

Thank you for answering my question. It didn't occur to me that there could be some build up from air moisture.
Anyways, I'm gonna dry them up real good and put them back in service. Last question i have is, how to i get them to work way they are now, 24hour reporting, supervisory alarm but i don't want siren to go off, just keyboard beeping only?
So say i have 3 of these units, zone 8,9,10. How do i make siren not to go off but still go into alarm and report as usual to CS?

Thank you for answering my question. It didn't occur to me that there could be some build up from air moisture.
Anyways, I'm gonna dry them up real good and put them back in service. Last question i have is, how to i get them to work way they are now, 24hour reporting, supervisory alarm but i don't want siren to go off, just keyboard beeping only?
So say i have 3 of these units, zone 8,9,10. How do i make siren not to go off but still go into alarm and report as usual to CS?

Group 38 is dedicated for water sensors....what group did you have them in previously? Group 38 sounds an auxiliary...