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Instrument and meter
Oshouse ST20R ORP oxidation-reduction potential testing pen from the United States
Testo 205 acidity meter
HEST-111 melt blown fabric electrostatic charge tester
SJ-X100 Mask Bacterial Filtration Detector
HI9145 Dissolved Oxygen Analyzer
Taiwan Taishi TES-1386 turbidity meter
Grinding agent chloride ion testing kit
Water chloride ion detection kit
American Ohouse ST10R ORP (oxidation-reduction potential) test pen
PK-6130J Mask Filter Material Filtration Efficiency and Resistance Testing Device
100Xs Salt Spray Filter Paper Mask Breather Leakage Tester
HI2300 Total Solid Solubility Tester
TSI8038 Mask Tightness Tester from the United States
HI993310 specialized conductivity meter for measuring soil
ST400D portable optical dissolved oxygen analyzer
HI8733 portable conductivity meter
HI99300 Conductivity Meter
OHAUS ST400 portable pH meter from the United States, high standard acidity meter
Ohhaus STARTER 300D Dissolved Oxygen Analyzer
HI99301 Conductivity Meter
HI2400 microcomputer printed dissolved oxygen analyzer
AZ8601 acidity meter, AZ8601S acidity meter set
Mettler FiveGo ™ Portable pH meter F2 Meter
GTI510 aerosol photometer
HI9033 Waterproof Multi Range EC Tester
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