Magnetic induction, ball to fit position. ·Magnetic induction, ball to fit position. ··Magnetic induction, ball to fit position. ·Low consumption and noiseless. ·Power to lock with signal output. ·Suitable for glass door, stainless steel door, wood door, etc. Volume200mm×35mm×30mmPack Volume280mm×100mm×45mmWeight1kgColorSilverWorking Temperature-40C to +70C