Executive summary Differential pressure (ΔP) measurement sits at the intersection of energy, IAQ, compliance, and reliability  in HVAC. It’s used for filter loading, duct static pressure, airflow inference, fan performance, and room pressurization (cleanrooms / isolation rooms). Three types of sensor dominate the market: Mechanical gauges : lowest cost and simplest deployment, but usually local-only  visibility unless you add switches or manual rounds. Wired electronic transm

Differential pressure is a simple signal with outsized value: it reveals clogging filters, airflow imbalance, duct leakage, fan performance drift, and containment failures before they become costly downtime. In this article, I break down the top 20 industrial monitoring applications for the Ellenex PDT2—spanning HVAC and IAQ, data centers, cleanrooms, process vessels, pipelines, and facility operations. If you’re building a predictive maintenance program or modernizing instru

Ensure safety and regulatory compliance in medical, pharmaceutical, and aerospace sectors with LoRaWAN® and NB-IoT differential pressure monitoring. This technical guide examines how the Ellenex PDT2 series manages positive and negative pressure environments to prevent contamination and infection spread. Discover the advantages of LPWAN-based condition monitoring for HVAC filters, hospital isolation rooms, and ISO-rated cleanrooms, featuring high-precision data for audit-read

Hospital construction zones must remain under negative pressure to prevent particulates and potentially harmful airborne contaminants from migrating into occupied clinical areas. But fans, doors, and temporary barriers can make pressure stability difficult to prove—or to maintain consistently. In this guide, Ellenex explains how LoRaWAN-connected differential pressure monitoring provides near real-time visibility, threshold alerts, and reliable reporting across large faciliti

Replacing an air filter too early wastes money—but waiting too long quietly drives up energy bills as your HVAC works harder through a clogged filter. In this guide, we break down how to find the “sweet spot” by weighing efficiency loss, filter cost, and labor. We also introduce an IoT-based calculator powered by real-time readings from the Ellenex PDT2 Differential Pressure Sensor, helping you know when to order a new filter and when it’s time to schedule maintenance.

Data centers live and die by airflow. When server racks lose positive pressure, cooling becomes less efficient, contaminants can creep in, and fans work harder—raising risk and operating cost. In this customer story, Ellenex shows how positive pressure monitoring delivers near real-time visibility into rack health, enabling predictive maintenance and smarter interventions before issues turn into outages. Using the PDT2-L differential pressure sensor (with temperature), operat