Hanna pH Electrode Storage Cap with Compression Fitting (5 pcs)

Ensure the performance of your HI781 Low Range Nitrate Checker with the HI781-11 Low Range Nitrate Calibration Check Set. Each kit includes two cuvettes, one cuvette for zeroing the checker, and then another cuvette with a certified standard reference solution.This high-quality set of standards is manufactured in our state-of-the-art facility and comes supplied with a Certificate of Analysis. The Certificate of Analysis provides the lot number, reference values and expiration date to provide traceability when certifying the Checker.

10 ml Syringe with Luer Lock used in Hanna HI781 Nitrate Checker

Ensure the performance of your HI702 High Range Copper Checker with the HI702-11 Copper Standards. Each kit includes two cuvettes, one sealed cuvette that will read at 0ppm of copper, and then another cuvette that is tinted to an equivalent of 2.0ppm (± 0.10) @ 25°C. Each set it checked at Hanna's state of the art facility, and guarantees each set of calibration standards. 

The HI740271 is a replacement filter holder with Luer lock (1 pc.) for use with the HI781 Low Range Marine Nitrate Checker.