Industrial Test Systems 480022 WaterWorks Free Chlorine HR Test 1 industrial For all the carpentry DIYers

For all the carpentry DIYers out there

Package: Pack of 100 Pieces Leddiode(Through Hole DIP 2pins leads mini LEDs Set)

Safety protection

the relay was triggered by low level

Industrial Test Systems 480022 WaterWorks Free Chlorine HR Test 1 industrial For all the carpentry DIYersIndustrial Test Systems 480022 WaterWorks Free Chlorine HR Test Direct from the Manufacturer USA WATERWORKS FREE CHLORINE HIGH CONTAINS 1 BOTTLE OF 50 TESTS MEASURING THE AMOUNT OF FREE CHLORINE. Using our patented test strip, which doesnt bleach out, you are able to test for safe sanitizer levels. Without the need for any other reagents, you are able to take this product right onto the shop floor! This product DOES NOT need the eXact iDip to read