This environmentally friendly ultrasonic cleaning solution has been
specially formulated for use with delicate electronics and is ion free.
It is also safe for use on precious metals and stones.
Optimum temperature for use is 40 to 50°C.   This product can be used at room
temperature too, you might have run your cycle a little longer though.

500ml makes up to 50 liters of cleaning solution depending on concentration.

1L makes  up to 100 liters of cleaning solution depending on concentration.

5L makes up to 500 liters of cleaning solution depending on concentration.

25L makes up to 2500 liters of cleaning solution depending on concentration.

An indicator lets you know if the water you are using is poor quality or excessively hard.  When you mix your solution wait 2 minutes.  If the solution remains clear then the water quality is high.  If the solution turns milky a reaction with the indicator has taken place indicating that the water quality is not very good.  Whilst you can still use these solutions it is advised against using it with very delicate electronics.  Prepared solutions that have been made up with high quality water and then used may go cloudy as contamination builds up.  This does not affect the cleaning ability of the solution.  Your own experience and nature of use will dictate how often you need to change the solution.