Residual Chlorine Alkalinity Hardness Test StripsWater Quality Test Strips 7 in 1 Keep your water clean and safe Residual Chlorine Alkalinity Hardness Test Strips. Ideal for various applications, including drinking water, aquariums, swimming pools, spas, sewage, and more. Whether you're a first time user or a seasoned pro, our test strips are incredibly easy to use. Simple and Efficient: Just dip a test strip into the water for about 2 seconds, then remove and lay it flat. After 15 seconds, compare

Dimensions: 63mm x 63mm x 22mm

Package Content: 1 x VENTION Fiber Optic Audio Cable 1

bare copper conductors

Storage environment: Temperature: -10~50° Humidity: 0~70%

With its 25mm diameter

Electrical Systems: Detect hot spots in electrical panels and motor bearings

Silicone rubber compound features 1:1 mix ratio

Air Conditioning: Monitor furnace and duct leakage

High Resolution: Accurate to 0

Operating frequency: 433 MHz

Versatile Placement: Install this versatile fixture indoors to brighten stairways

1x50g 2x20g 1x10g 1x5g for calibration weights scales or balances that you want to test or calibrate