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ST-2 LCD Digital Display Indoor Outdoor Thermometer with Clock Mini Outdoor

$4.14
Digital LCD display, high accuracy and stability Small size, easy to carry, used everywhere, Inside and outside sensor with flexible

TDS-1396 TDS Water Quality Test Pen Digital Temperature Meter

$14.95
Features: Used to measure the solution pH and TDS and temperature. Electrode probe can be replaced, ATC function. Easy to