Nitrite 0-25 ppm, Nitrate 0-500 ppm Two Pad Test Strip [Vial of 50 Strips] auspowers_batchone Knob diameter: 40mm

Knob diameter: 40mm

fully function "Read"

tool bits and other steel objects as needed

Oiyagai 4pcs 24V One 1 Channel Relay Module Board Shield with optocoupler Support High and Low Level Trigger

Unique Calibration feature for the most accurate results

Nitrite 0-25 ppm, Nitrate 0-500 ppm Two Pad Test Strip [Vial of 50 Strips] auspowers_batchone Knob diameter: 40mmNitrite 0 25 ppm, Nitrate 0 500 ppm Two Pad Test Strip [Vial of 50 Strips] About Bartovation From our headquarters in Queens, New York and with the help of our distributor network, we service customers all around the globe. We specialize in the production and distribution of testing strips for virtually every application. We value every one of our customers and strive to make them happy and satisfied. This product is proudly Made in America Nitrite 0