ET13S/ET13SPRO thermal imaging multimeter with 192×192 infrared resolution and electrical measurement capabilities

The ET13S and ET13SPRO thermal imaging multimeters represent a convergence of diagnostic technologies, combining infrared thermal imaging with traditional electrical measurement functions in a single handheld device. This integration addresses the practical needs of electricians, HVAC technicians, and maintenance professionals who require both visual heat pattern analysis and precise electrical measurements during inspections. The 2-in-1 design eliminates the need to carry separate thermal cameras and multimeters, streamlining diagnostic workflows while providing comprehensive fault detection capabilities. With its 192×192 thermal pixel resolution and broad temperature measurement range, this tool visualises thermal anomalies that often precede electrical failures, mechanical issues, or energy inefficiencies.

Features and Construction

The thermal imaging multimeter incorporates several core technologies that enable its dual functionality. The vanadium oxide sensor forms the foundation of the infrared imaging system, while the electrical measurement circuitry provides traditional multimeter capabilities. This combination allows simultaneous thermal and electrical diagnostics, providing both qualitative visual data and quantitative measurement values for comprehensive system analysis.

Material and Build

At the heart of the thermal imaging system lies a vanadium oxide (VOx) sensor, a material commonly used in uncooled thermal detectors for its temperature-sensitive electrical properties. The device employs a built-in lithium battery as its power source, enabling portable operation without external power requirements. The 134mm × 69mm × 25mm dimensions create a handheld form factor suitable for field use, while the construction supports operation within specified temperature and humidity parameters. The resistive touchscreen interface provides intuitive control over both imaging and measurement functions.

Size and Practical Fit

The 134mm × 69mm × 25mm dimensions create a compact handheld device that balances screen size with portability for field technicians. The 2.8 inch display offers sufficient viewing area for both thermal images and measurement readings without excessive bulk. The 3.5MB internal storage capacity provides basic image retention capabilities, allowing technicians to save thermal evidence of identified issues. The type-C USB interface facilitates both charging and data transfer, while the device's operating parameters ensure functionality in typical indoor and sheltered outdoor environments.

Uses and Placement

This thermal imaging multimeter serves professionals across multiple technical fields who require combined thermal and electrical diagnostics. The device identifies overheating components in electrical panels, detects insulation deficiencies in buildings, verifies mechanical bearing temperatures, and monitors HVAC system performance. By visualising temperature variations alongside electrical measurements, users can correlate thermal patterns with electrical parameters for more accurate fault diagnosis.

Event or Professional Use

Electrical professionals can use the device for preventive maintenance inspections, identifying overheating connections, overloaded circuits, and unbalanced loads before they cause failures. The 192×192 resolution provides sufficient detail to distinguish between individual components in electrical panels, while the -20°C to +550°C range covers most electrical and mechanical temperature scenarios. HVAC technicians benefit from the ability to detect refrigerant line temperatures, heat exchanger performance, and ductwork insulation issues alongside electrical measurements of compressor motors and control circuits.

Everyday Home Use

While primarily designed for professional applications, the device offers homeowners and DIY enthusiasts capabilities for household electrical safety checks and energy efficiency assessments. Users can identify overheating outlets, assess insulation effectiveness around windows and doors, and troubleshoot appliance thermal performance. The adjustable emissivity settings allow accurate temperature readings on different household materials, while the intuitive touchscreen interface simplifies operation for non-professional users conducting basic thermal inspections.

Benefits and Buying Value

The thermal imaging multimeter delivers value through time savings, comprehensive diagnostics, and preventive maintenance capabilities. By combining two essential diagnostic tools, it reduces equipment costs and simplifies fieldwork logistics. The device helps prevent equipment failures through early thermal anomaly detection, potentially avoiding costly repairs and production downtime in commercial settings.

Reuse and Low Maintenance

The device requires minimal maintenance beyond keeping the lens clean and operating within specified environmental parameters. The lithium battery provides rechargeable power through the type-C interface, eliminating disposable battery costs. The 3.5MB storage allows retaining thermal evidence for comparison during follow-up inspections, while the BMP file format ensures compatibility with standard image viewers. Proper operation within the 0-50°C temperature range and below 85% humidity maintains long-term functionality without specialised care requirements.

Why Choose This Product

This thermal imaging multimeter suits technicians who need both thermal visualisation and electrical measurement capabilities without carrying separate instruments. The 192×192 resolution provides adequate detail for most industrial and building diagnostics, while the 50° field of view captures sufficient area for general inspections. The combination of adjustable emissivity settings, broad temperature range, and multimeter functions creates a versatile diagnostic tool for electrical, mechanical, and building system assessments where thermal anomalies indicate underlying issues.