DIY Alcohol Tester Kit with MQ3 Sensor for Detecting Alcohol Concentration

Alcohol Tester Kit MQ3 Module Sensor for DIY Projects and Safety Testing

Innovative Stainless Steel Double Ball Liquid Level Sensor for Tanks and Pools

Waterproof Self locking Metal Push Button Switch for Harsh Environments

Innovative Design Waterproof Stainless Steel Pt100 Thermistor Probes Available

20pcs Stainless Steel PT100 Temp Sensor Covers for Harsh Environments Silver

Double Ball Float Switch Sensor for Water Tanks and Aquatic Environments

20pcs Stainless Steel PT100 Temp Sensor Covers for Harsh Environments Silver