Continuous Monitoring. Zero Maintenance. Zero Blind Spots.

The Passive Wireless Temperature Monitoring System from PQSense ensures smarter safety for high-voltage environments. Poor cable connections, fractured springs, and aging fuses often look fine, until the moment they overheat and fail.

PQSense brings these invisible risks into plain view. Designed for continuous 24/7 wireless temperature monitoring inside hard-to-access electrical equipment, the system uses battery-free RFID sensors to track temperature changes—without wiring, power, or manual inspections.

The Smarter Way to Monitor Temperature

Unlike traditional systems, PQSense doesn’t rely on batteries or wired power sources. Our passive RFID sensors draw power from a nearby reader and transmit precise, real-time temperature readings—even from inside metal enclosures or switchgear cabinets.

PQSense uses a unique passive RFID sensing technology. Each sensor is wireless, compact, and maintenance-free. It transmits precise temperature data without requiring direct visibility or line of sight.

Once installed on critical hotspots—such as circuit breaker clamps, capacitor terminals, or cable crimp points—each sensor becomes a continuous watchdog. Even in fully enclosed or high-voltage environments, these sensors detect and transmit thermal behavior accurately and safely.

This makes PQSense Passive Wireless Sensors ideal for monitoring blind spots where traditional tools fail.

How It Works

The Passive Wireless Temperature Monitoring System uses a streamlined three-part setup to deliver continuous, battery-free monitoring—without disrupting operations.

1. Passive RFID Sensors
   Installed directly on hotspots—cable terminals, circuit breaker clamps, or capacitor contacts. Fully passive, powered wirelessly by the reader and antenna, they transmit accurate contact-based temperature data.

2. Antennas
   Connected to a reader and placed near sensors in high-voltage areas. Antennas transmit energy and signals between the reader and nearby sensors.

3. Reader
   Mounted externally in the control section, alongside meters, relays, and other monitoring devices. It sends activation signals and collects real-time temperature data. One reader supports up to four antenna ports (ANT1–ANT4), enabling wide-area coverage.

Why It Matters: See What Infrared and Battery Sensors Can’t

Most wireless monitoring systems still rely on batteries, and most inspections rely on infrared tools. But in high-risk industrial environments, both approaches have limits.

Batteries degrade, require replacement, and often fail in high-temperature or high-voltage conditions. Infrared tools need open panels, clear sight lines, and manual operation—leaving blind spots untouched.

PQSense solves both. Its real-time temperature monitoring system is battery-free, requiring no maintenance or replacements. Combined with RFID transmission, it delivers continuous readings even in enclosed equipment.

Where PQSense Delivers: Switchgear, Substations, and Critical Power Systems

The PQSense Passive Wireless Temperature Monitoring System is trusted where downtime is costly and thermal risks are invisible—until it’s too late.

It’s ideal for:

• Substations and transformer rooms

• Semiconductor cleanroom power systems

• Manufacturing line switchgear and MCC panels

• Public transportation infrastructure and UPS enclosures

Wherever traditional inspections fall short, PQSense provides temperature monitoring for switchgear and substations with unmatched reliability.

Start Monitoring Smarter Today

With over 13,000 PQSense Passive Wireless Temperature Monitoring Systems deployed—across power plants, semiconductor fabs, transportation infrastructure, and manufacturing facilities—our technology has proven its value in the world’s most demanding industries.

By using PQSense, facilities gain not just monitoring, but a real-time temperature monitoring solution that scales across industries.

Schedule a free consultation today to see how PQSense Passive Wireless Sensors can be tailored to your facility.