Calibration References (one ferrous plate, one non-ferrous plate, and one film).
Replacement reference films for CG304 coating thickness tester.
1 ppm standard for chlorine meter calibration.
ExTab reagent tablets for use with Extech chlorine meters to measure total chlorine .
Rugged, flat surface electrode provides "On-the-Spot" measurements with an ExStik meter.
Replacement conductivity cell .
Conductivity calibration solution.
Replacement Bluetooth Data Logging Module for MO55W and MM750W.
Replacement dissolved oxygen sensor for Extech DO600 meter.
Replacement dissolved oxygen probe .