On Fri, 08 May 2015 16:38:18 +0100
Martin Brown wrote:

On 08/05/2015 16:28, Brian-Gaff wrote:

Well if you are running a transmitter you gotta use power surely?
Be better off with one that charges up every so often.
Brian

The amount of power required for a tiny burst of data every ten
seconds or so is miniscule. An oil Watchman which sends data much
less frequently lasts many years for example on some very expensive
to buy spares deviously repackaged in copper tube AA Duracell
batteries.

The transmitter on my OWL lasts a year to 18 months on a set.


I have a set provided by SSE, and the transmitter has no batteries, it
must draw its power from the line which it's clamped around, or
something.
The display can be powered either by a USB wallwart or batteries. I
don't use it much anyway, so couldn't say how long a set of batteries
lasts, but I don't think it was very long.

--
Davey.