Wildlife Acoustics makes recorders for timed work:
https://www.wildlifeacoustics.com <https://www.wildlifeacoustics.com/>
-Dan
> On Jul 22, 2019, at 8:31 AM, Russ Wigh [naturerecord=
ists] <> wrote:
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> Hello all
> I am trying to calculate what I need to do screech-owl surveys this fall.=
The equipment would usually be left overnight at dusk and picked up early =
the next morning. Since the recorders will be running at night, powering w=
ith solar is out, of course. For one of three units, the 722 with a NP-F97=
0 Sony lithium battery, I will set the internal recording timer and there w=
ill be no need for external power since it will run most of the night anywa=
y.
>
> The other two recorders are an Olympus LS-10 (expropriated back from my g=
randdaughter) and a Zoom Hn4. I envisioned small lead acid batteries connec=
ted to pure sine inverters, and Intermatic timers to shut the recorders dow=
n. But all the reviews I have read on Amazon and B&H have enough negatives =
to convince me that these Chinese-made products are a crapshoot. Clearly I =
do not want to spend an arm and a leg on this stuff, since it is not likely=
to have much future use. To wit, if anyone has some knowledge, experience =
or even a considered opinion for a solution, I would much appreciate it.
>
> Russ Wigh
> Skidaway Island, Georgia.
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