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After the light has been running for a bit, check the temperature of the entire cord. A hot spot indicates a damaged wire. If its all hot, you're pulling too many amps.

I think the contactors are from spas/hot tubs. I was looking into a co2 sensor based on the mg811 chip. But then I found http://www.futurlec.com/Gas_Sensors.shtml Toward the bottom of the page is a $110 sensor that doesn't require calibration and is accurate to 50ppm. It uses a...

http://www.amazon.com/Packard-C230B-Pole-Contactor-Volt/dp/B001KGSJ74/ref=sr_1_1?ie=UTF8&qid=1404599314&sr=8-1&keywords=30+amp+contactor Most arduinos deal with 5 volts d/c. The little relays are rated for a 10 amp inductive load but only a 5 amp resistive load (ballasts). The relays have a...

Careful of the cheap co2 sensors. They probably need to be calibrated at 2 points. One point is usually ambient levels but the second point could be tough to accurately achieve without a precalibrated sensor. When I was looking into them, $150 was about the best price for a quality sensor...

I'm a big arduino fan too. I have 13 thermometers, 5 hydrometers, 10 little relays, 3 big contactors, 11 led's, a speaker, and a servo connected to mine. I'd suggest the mega2560 if you plan on getting creative. More i/o ports and larger memory than the smaller ones. Here is a chart of the...

I have two 600 watt lights in big reflectors in a 5x5x7 tent with a single exhaust fan. In my winter configuration, I had the exhaust going out of the room to heat the rest of the house. But it got warm outside and the tent temps got well over 90°F. So I went to my summer config and put the...

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You used less electricity on items other than your light. Watts = Volts x Amps. You're using half as many amps but twice as many volts, same amount of watts.

You did the right thing in taking it down. The appraiser probably would have wanted samples. As for the Dr., lol.

On a refi, the appraiser should be done in 10-15 minutes. But you still should be worried. There is at least 1 lender that sent a message to its appraisers to specifically report mj grows. As the homeowner, you are subject to asset forfeiture. If the house is forfeited, the lender loses big...

Speaking as an appraiser, yes, you should be worried. My clients expect a picture of every room. I don't typically open closet doors unless it leads to the attic access. Its possible the homeowner hired the appraiser for nefarious purposes but appraisers specialize in value. If it doesn't...

The FLIR One turns your Iphone5 into a thermal imaging system. Need one for an android now.

And we all know leo obey all laws. lol. I can see an over exuberant officer taking his personal, sub $500 camera and driving up and down streets. While it couldn't be used as evidence, it could lead to further harrasment. On the other hand, I'd like to have one to look for heat leaks in...

It is used. They are supposed to have a warrant. It can be used from cars. They are getting cheaper. I saw a video where people were driving in a car and looking for a hot spot. The hot spot was often the exhaust out of the house.

Hehehe. Its dry where I live. We had less than 3" of rain during all of 2013. The highest humidity in my tent for the past month has been 15%. Its got down to single digits a few times. The only time I add humidity is when the temperature gets high during the summer. Mold? Not here. It...

I stumbled across the R & M brand after I ordered my SJ DR150. The descriptions are identical. The pictures are identical. The Secret Jardin is made in the Peoples Republic of China. I imagine the R & M is made in China too. It is common practice to rebrand items to sell at different...