Model 1: CHI150 calomel electrode–no invoice

Model 2: CHI150 Calomel Electrode–Cape ticket

Model 3: CHI150 Calomel Electrode–Increase the ticket

Model 4: L-type Lujin capillary with sand core–no invoice

Model 5: L-type Lukin capillary tube with sand core–Kaipu ticket

Model 6: L-type Lujin capillary tube with sand core–Increase the ticket

Type 7: L-type Lujin capillary without sand core–no invoice

Type 8: L-type Lukin capillary tube without sand core–Kaipu ticket

Model 9: L-type Lujin capillary tube without sand core–Increase the ticket

Mercurous sulfate test: acidic liquid.

Saturated calomel electrode, silver chloride electrode: test neutral liquid. Mercury oxide electrode: measure alkaline liquids.

Please select the corresponding electrode correctly, so as not to affect the test data.

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