Bosch El600 Manual -

To prevent "peeping," you can enter up to 32 digits as long as your actual 6-digit PIN is included in the sequence.

: To prevent onlookers from learning your code, you can enter random digits before or after your actual password. Maintenance & Troubleshooting Low Battery Warning Bosch El600 Manual

Before diving into the advanced settings, ensure your lock is properly installed and powered by four or eight AA alkaline batteries. How to Wake the Lock To prevent "peeping," you can enter up to