Product description
Style: Separate 4inch/6inch/8inch/10inch/12inch, switches need to be ordered separately
Applications : security doors, escape doors, security systems
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(Measurement error of 1-2cm is normal, please understand)
* Pure copper electromagnetic coil with discontinuity and no electromagnetic interference.
* Strong tapping, stable operation and long service life.
* Hard metal shell, not easy to deform, the sound reaches 100db, and it is farther and safer.
* The surface is coated with electroplating technology to make the material more anti-corrosive and less prone to rust and corrosion.
* Portable wired power supply, easy to install, can be installed on the wall, ceiling and other installation methods.
* Choose 220V according to the voltage you use