4 inch electric bell CE Certificate
Product Inspection Standard: Requirements of the ZC Regulations for the statutory surveys of ships and offshore installations.
Description Host camera Type: Direct press-host camera Feature: Direct press-host camera with6pcs call button Installation in: outdoor or main entrance Material : plastic + Alloy Easy to installation ...
70mm electric bell CE certiifcated Can also used as bell for door use
Electric bell with hammer outside bell cover clear and sound rings, suitable for school, factory, transportation and other places use
electric bell with clear and loud rings CE certificated
150mm alarm bell beauty in appearance