If you have forgotten the password you can reset it by accessing the Forgotten password link in the login site: https://tacho4safe.com/ 

You have to enter the username and the email address that you have used when you registered to the site check the I'm not a robot checkbox and press the Change button.

New password will be sent to your email address. If you don't find the email please check your Spam and Junk folder too .

After you have signed in you can change your password in the Settings -> Change Password section.