"Jeff Layman" wrote in message news
On 06/03/17 10:33, Maurice Goldstein wrote:
I've tried those 2 quid meters you get in garden centres. Battery-less
with
2 prongs which measure moisture, light and pH but I find these useless.

That's because they are useless.

Has anyone got a moisture meter, accurate enough for seed trays and
flower
pots? TIA.
snip

You'll be better off using capillary matting and standing pots and
seedtrays on that than using any moisture meters if you're worried about
them being too dry or too wet.

Yep that makes sense. Keeping the capillary matting damp should work.
Thanks.