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I used these to replace the sensors for the solar controller for a hot tub / spa. These work well with the solar controller on the Compool lx220 . Build them in a small copper pipe, fill with silicone and stick it between the spa shell and the insolation. Can't beat the price.
| 10 + | $0.32 each |
| 100 + | $0.29 each |
| 25 + | $1.02 each |
| 100 + | $0.96 each |
