Inserting/Changing the Battery
It is recommended that you use alkaline manganese or rechargeable batteries to operate the measuring tool.
With 1.2 V rechargeable batteries, more measurements may be possible than with 1.5 V batteries, depending on the capacity.
- Open the battery compartment cover.
- Insert the batteries/rechargeable batteries.
- Always replace all the batteries/rechargeable batteries at the same time. Only use batteries/rechargeable batteries from the same manufacturer and which have the same capacity.
- When inserting the batteries, ensure that the polarity is correct according to the illustration on the inside of the battery compartment.
When the empty battery symbol 
first appears in the display, approx. 100 measurements will still be possible. When the battery symbol flashes, no more measurements will be possible.
- Take the batteries out of the measuring tool when you are not using it for a prolonged period of time. The batteries can corrode and self-discharge during prolonged storage.