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Guest Message by DevFuse

Universal sensor w. DS18B20 battery life

hvb83

By hvb83
in FIBARO Products

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Recommended Posts

hvb83    1

hvb83
Posted

I have door sensors with temperature sensors on most windows, but have to come to the conclusion that, due to the mounting position, this is too inaccurate for my wishes. Now I would like to install room temperature sensors in better suitable positions. I would like to use the Fibaro Universal Sensor with a DS18B20 for that, but can't run cables to the device to connect it to the grid.

Using a 9V battery and a setting of sending an update to HC2 after a 0,2 degrees temperature change, how much battery life can you expect from that?

petergebruers    1,268

petergebruers
Posted

Less than a day. The UBS is not a battery operated device. Last time I measured supply current it was 40 mA. I can't remember at what Voltage I was running it at... It's mounted in a box so it is not easy for me to measure it...

akatar    208

akatar
Posted

i down't own a door sensor, but i guess you can use longer wires for the dallas chip?

stevenvd    51

stevenvd
Posted

yeah a meter should be no problem as it is a digital signal. (dallas chip measures and than sends it digital...)

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