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jeff5may · 10-03-16, 11:33 PM

I have done the sensor thing both ways. If you buy a bulk amount of sensors, the hermetic sealed ones are pretty cheap. Then again, the TO-92 bugs are much cheaper and fit perfectly inside a piece of 1/4" copper or stainless tube. The ones I built were potted up with either super black rtv or 5 minute epoxy. Both types held up well.

10-03-16, 11:33 PM	#5
jeff5may Supreme EcoRenovator Join Date: Jan 2010 Location: elizabethtown, ky, USA Posts: 2,428 Thanks: 431 Thanked 619 Times in 517 Posts	I have done the sensor thing both ways. If you buy a bulk amount of sensors, the hermetic sealed ones are pretty cheap. Then again, the TO-92 bugs are much cheaper and fit perfectly inside a piece of 1/4" copper or stainless tube. The ones I built were potted up with either super black rtv or 5 minute epoxy. Both types held up well.