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<div style="font-size: 11pt;" class="elementToProof"> >> Rudy talked about NB-IOT issues associated with water meters.<br>
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<div style="font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof"><a href="https://www.zpmeter.com/What-makes-ultrasonic-water-meters-accurate-for-water-measurement">https://www.zpmeter.com/What-makes-ultrasonic-water-meters-accurate-for-water-measurement</a><br>
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<div style="font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof">"<span style="font-family: Calibri, Helvetica, sans-serif;">Recent industry studies confirm ultrasonic water meters maintain
</span><span style="font-family: Calibri, Helvetica, sans-serif; font-weight: bolder;">±1% accuracy</span><span style="font-family: Calibri, Helvetica, sans-serif;"> across their full operating range, including intermittent low-flow conditions common in residential
or commercial settings. Mechanical alternatives, while achieving ±1% accuracy at installation, degrade to ±5–20% within 2–3 years due to wear—a problem eliminated in solid-state ultrasonic designs."</span></div>
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"Ultrasonic water meters require <span style="font-weight: bolder;">10 pipe diameters of straight run upstream</span> and
<span style="font-weight: bolder;">5 diameters downstream</span> to establish laminar flow conditions essential for accurate measurements. Misalignment causes swirling currents that distort the ultrasonic signal path, with field tests showing
<span style="font-weight: bolder;">14% measurement errors</span> in turbulent flows"</div>
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<div class="elementToProof"><span style="font-family: Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">"</span><span style="font-family: Fira_Sans_Extra_Condensed; font-size: 15px; color: rgb(102, 102, 102); background-color: rgb(255, 255, 255);">Pressure
fluctuations exceeding </span><span style="font-family: Fira_Sans_Extra_Condensed; font-size: 15px; color: rgb(102, 102, 102); background-color: rgb(255, 255, 255); line-height: 1.4; font-weight: bolder;">±15 psi</span><span style="font-family: Fira_Sans_Extra_Condensed; font-size: 15px; color: rgb(102, 102, 102); background-color: rgb(255, 255, 255);"> can
alter water density enough to cause </span><span style="font-family: Fira_Sans_Extra_Condensed; font-size: 15px; color: rgb(102, 102, 102); background-color: rgb(255, 255, 255); line-height: 1.4; font-weight: bolder;">1.2% volumetric errors</span><span style="font-family: Fira_Sans_Extra_Condensed; font-size: 15px; color: rgb(102, 102, 102); background-color: rgb(255, 255, 255);"> in
ultrasonic readings"</span></div>
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