Civil Engineering / HM-G41 Handheld Thermal Imager
Building Diagnostics & Industrial Inspection · 480×360 IR Resolution · NETD <35 mK · Laser Autofocus · GPS · IP54 · Wi-Fi
The HIKMICRO G41 is the professional handheld thermal imager for technical experts who cannot afford to miss an anomaly — on a building site or in an industrial plant. The 480×360 pixel VOx detector (172,800 pixels) with NETD < 35 mK detects thermal bridges, moisture infiltration, plaster detachment and insulation defects with the same precision it applies to electrical faults and mechanical failures. The 5-mode laser autofocus system locks focus in approximately 2 seconds. Integrated GPS, compass and laser distance meter deliver georeferenced data ready for technical reports.
The G41 covers two measurement ranges, each optimised for a specific operational context:
Standard range: −20°C to +150°C — accuracy ±2°C (−20 to 0°C), ±1°C (0 to 100°C), ±1% (100 to 150°C) The ideal range for building diagnostics: thermal bridges, moisture infiltration, insulation verification, low-temperature systems, energy certification. The ±1°C accuracy in the 0–100°C band meets the requirements of EN ISO 6781 and EN 13187 for building thermography.
Extended range: 0°C to +650°C — accuracy ±2°C (0 to 100°C), ±2% (100 to 650°C) The range for heavy industrial inspection: electrical diagnostics on MV/LV switchboards, transformers, motors, bearings, furnaces and high-temperature processes.
A single instrument covers the full range of a technical professional’s work: from the energy audit of a residential building to the thermal commissioning of an industrial plant.
The built-in analysis tools include: centre spot, hot spot, cold spot, Delta T, up to 10 user-defined spots, 1 line, 5 rectangles and 5 circles — all with real-time temperature readout and configurable high/low/interval alarms to automatically highlight anomalous zones.
The G41 is designed to integrate into the workflows of technical professionals who must deliver certifiable documentation:
The free HIKMICRO Analyzer software (Windows) is the central tool for professional post-processing: isotherms, temperature profiles, before/after comparison, anomalous area calculation and generation of professional PDF reports with headers, side-by-side visible/thermal images, data tables and technical notes — ready for attachment to expert reports, energy diagnostics and building renovation documents. The HIKMICRO Viewer mobile app enables direct image transfer and preview from any smartphone.
The HIKMICRO G41 is engineered for technical professionals who demand the highest performance from handheld thermography: structural engineers, building surveyors, energy auditors, certified thermographers and industrial maintenance engineers. The 480×360 pixel vanadium oxide (VOx) detector with a 17 μm pitch provides uniform spectral response across the 7.5–14 μm band and thermal sensitivity below 35 mK (measured at 25°C, F#=1.0).
Proprietary SuperIR technology applies a super-resolution algorithm to captured images, boosting the displayed resolution to 960×720 pixels without compromising radiometric data. Every pixel in every acquired JPEG stores its absolute temperature: images are fully radiometric, available for post-processing analysis and directly attachable to technical survey reports and energy performance certificates.
In building pathology diagnostics, thermal image quality determines the difference between an accurate and a misleading technical finding. The G41 enables clear identification of:
The standard range −20 to 150°C with ±1°C accuracy between 0 and 100°C is calibrated precisely for the temperature differentials typical of residential and civil construction (generally 5–30°C), where precision matters more than range.
The G41’s focusing system supports five distinct modes:
A focus speed of approximately 2 seconds and a minimum focus distance of 0.3 m cover both close-up inspections of structural nodes and long-range surveys of facades and rooftops.
The built-in laser distance meter (50 m indoor / 10 m outdoor, Class II, 635 nm) measures distance and surface area directly from the instrument — essential for calculating the size of an anomalous zone to report without additional equipment.
Every acquisition is automatically enriched with GPS coordinates and compass direction, creating a geotagged image archive ready for import into technical reports, energy performance certificates (EPC) and building renovation documentation. Voice annotations (up to 60 seconds), text notes (up to 200 characters) and QR code scanning enable thorough on-site documentation, significantly reducing back-office work.
The G41 covers two measurement ranges, each optimised for a specific operational context:
Standard range: −20°C to +150°C — accuracy ±2°C (−20 to 0°C), ±1°C (0 to 100°C), ±1% (100 to 150°C) The ideal range for building diagnostics: thermal bridges, moisture infiltration, insulation verification, low-temperature systems, energy certification. The ±1°C accuracy in the 0–100°C band meets the requirements of EN ISO 6781 and EN 13187 for building thermography.
Extended range: 0°C to +650°C — accuracy ±2°C (0 to 100°C), ±2% (100 to 650°C) The range for heavy industrial inspection: electrical diagnostics on MV/LV switchboards, transformers, motors, bearings, furnaces and high-temperature processes.
A single instrument covers the full range of a technical professional’s work: from the energy audit of a residential building to the thermal commissioning of an industrial plant.
The built-in analysis tools include: centre spot, hot spot, cold spot, Delta T, up to 10 user-defined spots, 1 line, 5 rectangles and 5 circles — all with real-time temperature readout and configurable high/low/interval alarms to automatically highlight anomalous zones.
The G41 is designed to integrate into the workflows of technical professionals who must deliver certifiable documentation:
The free HIKMICRO Analyzer software (Windows) is the central tool for professional post-processing: isotherms, temperature profiles, before/after comparison, anomalous area calculation and generation of professional PDF reports with headers, side-by-side visible/thermal images, data tables and technical notes — ready for attachment to expert reports, energy diagnostics and building renovation documents. The HIKMICRO Viewer mobile app enables direct image transfer and preview from any smartphone.
The work of a technical professional takes place in demanding conditions: loft spaces, basements, open construction sites, industrial sheds. The G41 is certified to withstand them all:
The hot-swappable Li-Ion battery system allows battery replacement without interrupting work. The standard kit includes 3 batteries (approximately 4 hours each) and a dual-slot charging base: over 12 hours of continuous operation for the most demanding survey days.
| Sector | Typical Application |
|---|---|
| Civil building diagnostics | Thermal bridges, moisture infiltration, rising damp, plaster and cladding detachment |
| Energy efficiency & EPC | Insulation verification, window heat loss, energy audits for building certification |
| Low-temperature systems | Radiant floor and ceiling heating survey, heat distribution verification |
| Roof and facade inspection | Anomalies on flat roofs, ventilated facades, external insulation, structural nodes |
| Electrical industry | Thermal imaging of switchboards, MV/LV cabinets, transformers, connections |
| Mechanical & maintenance | Bearing, motor, coupling and transmission monitoring, predictive maintenance |
| HVAC & plant | Pipe, boiler, heat exchanger inspection, thermal losses |
| Manufacturing & quality | Process control, mould inspection, production line monitoring |
| Public safety | Perimeter surveillance, search & rescue, firefighting |
| Oil & gas | Pipeline, tank and high-temperature valve inspection |
| R&D | Thermal testing, prototype analysis, laboratory use |
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