When should I replace the batteries in my Emaux 8552 ORP Meter

[SanAngela]

To ensure your Emaux 8552 ORP Meter functions correctly, monitor the battery status. You should check the batteries in these instances: upon initial use, when the battery symbol appears on the LCD screen, or if the meter fails to power on. Replacing the batteries is straightforward: First, power off the meter. Then, unscrew the battery cover counter-clockwise, being careful not to lose the black washer. Next, insert four new LR44 button cell batteries, ensuring correct polarity. Finally, securely reattach the battery cover and washer by tightening it clockwise. If the ORP meter will be stored unused for a month or more, remove the batteries to prevent potential damage. Following these steps will help maintain the accuracy and longevity of your Emaux 8552 ORP Meter.