Powerfix PEK 2.4 B1 - Manual (Page 9)

PowerFix PEK 2.4 B1
English - 7
Operational safety

If the endoscope camera is exposed to extreme temperature
fluctuations, condensation can lead to the accumulation of moisture
which can cause a short circuit. In this case, wait until the endoscope
camera has reached ambient temperature before use.

Always ensure correct battery polarity. Never try to recharge batteries
and never throw them into an open fire! Never mix batteries (old and
new, alkaline and carbon etc.) at the same time. Remove the batteries if
you will not be using the device for an extended period of time. If the
device is used improperly, there is a risk of it exploding or leaking!
Operating environment/Environmental
conditions

Keep the operating unit (TFT screen with handle) away from moisture.
Never place any objects filled with liquids such as vases or drinks on or
near the device. Prevent exposure to vibration, dust, heat and direct
sunlight. The device could be damaged as a result.

Ensure that no fire sources (e.g. burning candles) are placed on or near
the device.