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China Compact Auto Vibrating Tuning Fork Level Switch for Liquids with Alarm

Normally Closed Antitheft Alarm Magnetic Door Contact Reed Switch (BSI-2041P)

Stainless Steel PP Liquid Water Fuel Oil Genset Diesel Bio-Diesel Holding Tank Level High Low Alarm Control Buzzer Switch

Ab-801A Access Control Door Release Button Emergency Push Button Switch

Manual Fire Alarm Button Resettable Emergency Fire Switch Fire Safety Alarm Device