Three-in-one water quality test pen EC meter conductivity meter TDS test pen
$ 7.73
Three-in-one water quality test pen EC meter conductivity meter TDS test pen
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Solid metal button, after rigorous testing of 100,000 hits, it is not easy to press the button
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Our batteries are made of high-capacity environmentally-friendly electronics, with long life and large capacity. Under normal circumstances, our electronics can be used for 1-2 years.
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Our battery card is soldered on the circuit board, there will be no bad contact, free power off, etc.
