Our door viewers are provided with precision glass optics. The lenses are polished: clear, free of distortion and non-glare in order to meet highest demands. The complete area in front of the door is covered,as a door viewer means a safe protection from burglary and other unpleasant intruders.

Glass optics offer the following advantages versus resin lenses:

1. Sharply defined view quality, no re-dullness by air moisture

2. Better scratch resistance when cleaning

Due to our over thirty-year-old experience in door viewer production we can offer top-quality at reasonable prices. Special orders - as for instance custom designs - are available on request.