What does “LO” in the TA location of the TruTest meter display mean?
The meter displays “LO” in the TA location when the battery voltage drops below the permissible limit. Start and Scroll functions are disabled and the meter turns off automatically within 3-5 seconds. Even if the meter is turned ON again, it would turn off after displaying “LO”. If a low battery condition is detected during the Test/Run cycle, instead of pool values the meter returns a “LO” on display at the TA location and turns off.
