Sensus Iperl Water Meter Manual 'link' -
A: To conserve battery, some iPERL models enter a "sleep mode." Many versions require a light sensor trigger (shining a flashlight on the face) or a magnet swipe to wake the display. Conclusion
A: To conserve battery, some iPERL models enter a "sleep mode." Many versions require a light sensor trigger (shining a flashlight on the face) or a magnet swipe to wake the display. Conclusion