ET13S and ET13PRO Thermal Imaging Multimeter: 192 x 192 Resolution and -20°C to +550°C Range

The ET13S and ET13PRO models represent a integrated diagnostic tool, combining thermal imaging capabilities with multimeter functions in a single handheld unit. Designed for electricians, building inspectors, and maintenance engineers, this device visualises temperature differences with a 192 by 192 pixel sensor, helping to identify faults, insulation gaps, or overheating components efficiently. Its core strength lies in providing measurable, visual data across a broad temperature spectrum, from -20°C to +550°C, supported by a clear 2.8-inch touch screen interface. This practical combination aims to reduce the need for multiple tools on-site, offering a consolidated solution for technical assessments where temperature is a critical factor.

Features and Construction

The device's construction centres on its thermal imaging sensor and user interface, built to deliver specific performance within defined environmental limits. Its design prioritises clarity of data and operational simplicity for professional use in varied settings.

Material and Build

At the heart of the thermal imaging function is a vanadium oxide (VOx) microbolometer sensor, a material commonly used in uncooled thermal cameras for its sensitivity to infrared radiation. This sensor enables the 192 by 192 thermal pixel resolution. The unit is powered by a built-in rechargeable lithium battery, providing cordless operation, and features a resistive touch screen for control and menu navigation. The use of a USB-C port for connectivity and charging reflects a modern standard for data transfer and power supply.

Size and Practical Fit

The instrument's physical dimensions are 134mm in length, 69mm in width, and 25mm in thickness, making it a compact handheld device suitable for carrying in a tool bag or using in confined spaces. Its 2.8-inch screen offers a balance between display size and overall portability. The operational environment is specified as 0°C to 50°C with less than 85% relative humidity (non-condensing), guiding users on where it can be reliably deployed. For storage, a wider temperature tolerance from -20°C to 60°C is supported.

Uses and Placement

This tool is designed for scenarios where identifying temperature variations is key to diagnosing problems or verifying conditions. Its dual nature as an imager and multimeter allows it to serve in both proactive inspections and reactive fault-finding missions.

Event or Professional Use

For professional electrical work, the device can scan switchboards, connections, and machinery for hot spots indicating overloads or failing components. In building and facilities management, it is applicable for thermal surveys to detect heat loss through walls, windows, or roofs, and for checking underfloor heating or HVAC system performance. The adjustable emissivity (0.1 to 0.99) allows technicians to calibrate readings for different surface materials like metal, wood, or insulation, improving measurement accuracy for specific tasks.

Everyday Home Use

While geared towards professional diagnostics, a knowledgeable homeowner or DIY enthusiast could use it for periodic checks around the home. Potential applications include verifying the efficiency of heating systems, locating drafts, or inspecting electrical panels for safety. The intuitive touch screen and automatic gain mode lower the technical barrier for non-specialists wanting to understand thermal patterns in their property.

Benefits and Buying Value

The value proposition of this thermal imaging multimeter stems from its combined functionality, detailed imaging specifications, and design for practical field use. It consolidates two diagnostic approaches into one tool, which can streamline workflows.

Reuse and Low Maintenance

The device is built for repeated use across various jobsites. Its specified operating temperature and humidity ranges provide clear guidelines for its care, suggesting it requires no specialist maintenance beyond avoiding extreme, condensing environments. The 3.5MB internal storage allows for saving numerous thermal images as BMP files directly on the device for later reference or reporting, supporting its reuse over multiple projects. The USB-C port facilitates easy offloading of data to a computer for archiving or analysis.

Why Choose This Product

Choosing this product is justified by its concrete specifications: the 192 x 192 thermal resolution offers a clear level of detail for identifying smaller anomalies, while the extensive -20°C to +550°C range covers most common industrial and building scenarios. The inclusion of a 2.8-inch touch screen and USB-C connectivity offers a user experience aligned with modern electronics. For professionals needing a visual temperature diagnostic tool that also provides electrical measurement capabilities, this integrated unit presents a specific, specification-driven option that avoids the need to carry separate imaging and metering devices.