For dosing agent canister 20 litres, this mineral substance dosing device includes a holder for pipe installation, a connection station with an injection point, and modular control electronics with an integrated diagnostic system. It features an optical operation and dosing frequency display, as well as optical and audible alerts for container change and dosing frequency. The device also comes with a suction lance that has level monitoring (dry run protection), a child safety lock, and a transformer plug. Note that it does not include an active ingredient container and is only compatible with 2nd or 3rd generation devices manufactured from October 2011 onwards.