Pretty cool find Mick. Looks like it's a bit better quality build than the Patchmasters(what I have), I do like in the description
"Extremely sensitive LDR type sensor to detect lightning events in any light conditions with full microprocessing optocoupler conrol" That's one complaint with the Patchmaster, daytime it isn't the best...in fact if the storm is usually 50km or more away forget it. It does depend alot on the prevailing conditions but I have missed clearly visible bolts because the overall change in luminosity was nonexistant locally. Ie I had the sun to my W storm approaching from S @ 100km in clear skies therefore the photodiode didn't react.
A young guy I know from Cairns on WZ forum had a similiar idea to one of my own...radio based triggering. His idea though is better than mine(I just wanted to use a LF radio reciver basically), his idea is basing the trigger around one of these:
http://www1.futureelectronics.com/doc/A ... AS3935.pdf" onclick="window.open(this.href);return false;
The limitation is triggering during non visible bolts when using a radio approach although some extra work could develop a directional arieal system which would help combat some of the falsies but not all.
On a side note he is making/developing an at home lightning detector based on the above chip, obviously it has distance limitations but according to some of what he has said about it the detector should be able to resolve(roughly) distance/direction/storm approaching/departing.
If anyone is interested in either give me a PM and I will pass on his details.
I am meaning to get around to my own...but I have about 4 million things in front of it on the development table! Always way too many things to do and just not enough hours in a day!