Small icons on the right or bottom specify the units (GAL, FT³, M³). ⚠️ Common Alert Codes

Unlike older meters, the iPerl’s battery is housed within the communication module, not the register.

: Alerts if water is entering the system from the wrong direction, helping prevent contamination.

Values to the right of the decimal show precise usage down to 1/1000th of a unit. Flow Indicators: Look for a small circle on the display. A plus sign (+) means water is flowing forward. A minus sign (-) indicates reverse flow.

| Display / Behavior | What it means | |-------------------|----------------| | Faucet icon blinking | Possible leak (toilet flapper, dripping faucet, irrigation line). | | Flow rate >0 but all fixtures off | Leak or bleed-through valve. | | “Err 2” or “Err 4” | Empty pipe (air) or reversed polarity (magnetic interference). | | Reverse flow volume increasing | Backflow – check check valve on customer side. | | Blank display | Dead battery or disconnected cable (requires factory service). |