24/7 Continuous Monitoring of Electrical Enclosures

The Delta-T Alert™ wireless systems constantly monitor every critical electrical enclosure in a facility and complements existing electrical maintenance programs. The system also offers energy savings by allowing for the timely repair of loose connections that create increased resistance, thus resulting in higher energy costs due to losses. The cost of cleaning and replacing electrical components is low compared to energy savings realized through preventative maintenance.

An Easy Way to Reduce Risks

Delta-T Alert™ bridges the gap between your routine Condition Based Maintenance inspections and brings your critical assets into a CAST model. The Delta-T System monitors and reports critical temperatures within your electrical enclosures daily and effectively tracks your electrical system enclosure temperatures and sends data for analysis and trending. If a critical issue arises, immediate notification allows for an appropriate corrective action long before costly damage occurs. The system warnings that Delta-T Alert™ provides allow for maintenance technicians to be warned of potential issues causing the elevated internal ambient temperatures. This information and trend data gives maintenance personnel a significant safety advantage prior to any type of routine maintenance or troubleshooting of possible electrical anomalies within the electrical enclosures.

Easy Installation

The Delta-T Alert™ system installation is easy. For permanent installations, simply drill a 9/16” hole in the enclosure and mount the unit tightening the clamp nut provided. If only a temporary installation is required, the Delta-T Alert casing also has a permanent magnet for mounting on ferrous metal enclosures. Each sensor pairing and configuration can be completed in less than 2 minutes. It’s that easy!


Battery Operated

Delta-T Sensors operate on three (3) standard “AA” batteries which will last up to 18 months under normal operating conditions. Battery status is communicated wirelessly to the software and battery swap can be performed without the need for an equipment shutdown.

350ft Wireless Connectivity

Each Delta-T sensor communicates wirelessly to the Delta-T Gateway with range of up to 350ft unobstructed. Walls, equipment and other obstructions may reduce the effective range. Up to 230 Delta T sensors can communicate to a single Delta T Gateway and multiple Gateways can be tied together to create your total monitoring system.

Custom Reporting & Scheduling

Set schedules and get reports instantly.

Dual Temperature & Humidity Sensors

Delta-T Sensors communicate the Internal Equipment Air Temperature, the Ambient Air Temperature and the Relative Humidity back through the Delta T Gateway. Data is logged via the Delta T Software and trend plots can be viewed for each Delta T Sensor.

Optional Environmental Housing

For outdoor, dusty or wash-down applications, an optional environmental housing is available for Delta T Sensors.

Proudly Made in the United States

IRISS manufactures and assembles all products at our global headquarters located in Bradenton, FL.

Limited Warranty

12 Month Limited Warranty on the Sensor


General Specifications
Operating Temperature -40°C (-40°F) to 85°C (185°F)
Body Material UL 94 5VA Nylon (switchgear-grade plastic); -40°C (-40°F)to 273°C (523°F)
Back up Channel Yes
Real Time Clock Yes
Over The Air Updates Yes
Audio Alarm Yes
Compliances FCC, IC CE ANZ
Dimension and Sensor Specifications
Dimensions 69.9 x 114.3 x 48.3 (2.75 x 4.5 x 1.9in)
Weight With Batteries 172g (0.38lb), Without Bateries 104g (0.23lb)
Wireless Technology Z-WaveTM 5th Gen
RF Range 50 ft Optimum / Up to 300 ft Line of Sight
Temperature Reading Accuracy +/- 0.5°C (+/- 32.9°F)
Humidity Reading Accuracy +/- 1%
Frequency 908.40 MHz, 916.00 MHz 868.40 MHz, 869.85 MHz 919.80 MHz, 921.40 MHz
Daily Scheduled Reports Up to 8
On Demand Status Report Yes
Critical Alarm Reports Yes
Inspection Capabilities and Applications
Temperature Yes
Humidity Yes
Medium/High Voltage Applications Yes
Power Supply 3x AA batteries
Operating Voltage 3x 1.5 V battery
Battery Life Variable
Applications Delta T Alert
System Requirements
Operating System Windows XP Windows 7 or Higher
Processor Speed 500 MHz 1 GHz
Free Hard Disk Space 5 GB 10 GB
Display Resolution 800 x 600 800 x 600 or Higher
Warranty Unconditional Lifetime Warranty

Recommended products

Delta-T Alert Pro Sensor

Delta-T Alert Software

Delta-T Alert Gateway

Sonus XT

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