Compare HIKMICRO G Series Thermal Cameras

The HIKMICRO G31, G41, G41H, G61 and G61H are professional handheld thermal imaging cameras for electrical maintenance, mechanical fault finding, industrial inspections and predictive maintenance. All five feature 50 Hz imaging, multiple autofocus modes, a 4.3-inch touchscreen, SuperIR image enhancement and tools for recording and reporting thermal inspection findings.

The main differences are native detector resolution, standard field of view and temperature range. Choose the G31 for 384 × 288 resolution and routine inspections, the G41 for greater 480 × 360 detail, or the G61 for 640 × 480 resolution when smaller or more complex targets need closer examination.

The G41H and G61H retain the respective models' imaging capabilities while extending the maximum measurement temperature from 650°C to 2000°C, making them better suited to high-temperature industrial applications.

Compare the five models to choose the resolution and temperature capability your inspections actually require.

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HIKMICRO G31 Professional Thermal Imaging Camera

HIKMICRO G31

384 × 288 native IR resolution

4 lens options

From £4,885.00 incl. VAT £4,070.83 excl. VAT
HIKMICRO G41 Professional Thermal Imaging Camera

HIKMICRO G41

480 × 360 native IR resolution

4 lens options

From £6,585.00 incl. VAT £5,487.50 excl. VAT
HIKMICRO G41H High-Temperature Thermal Imaging Camera

HIKMICRO G41H

480 × 360 native IR resolution

4 lens options

From £7,585.00 incl. VAT £6,320.83 excl. VAT
HIKMICRO G61 Professional Thermal Imaging Camera

HIKMICRO G61

640 × 480 native IR resolution

4 lens options

From £8,185.00 incl. VAT £6,820.83 excl. VAT
HIKMICRO G61H High-Temperature Thermal Imaging Camera

HIKMICRO G61H

640 × 480 native IR resolution

4 lens options

From £9,285.00 incl. VAT £7,737.50 excl. VAT

HIKMICRO G31 vs G41 vs G41H vs G61 vs G61H: which should you choose?

The HIKMICRO G Series is designed for professional electrical, mechanical, utility and industrial maintenance inspections. Every model combines 50 Hz thermal imaging, multiple autofocus modes, SuperIR image enhancement and radiometric image capture in a handheld camera built for regular inspection work.

The key differences are native infrared resolution, standard lens field of view and measurement temperature range. These determine how much thermal detail you can capture, how effectively you can inspect smaller targets and whether the camera can measure the temperatures involved in your application.

Choose the G31 for routine inspections at 384 × 288 resolution, the G41 for 480 × 360 detail, or the G61 for 640 × 480 resolution. If your work involves equipment operating above 650°C, consider the G41H or G61H, which extend the measurement range to 2000°C without changing their respective native detector resolutions.

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Comparison of HIKMICRO G31, G41, G41H, G61 and G61H thermal cameras
	HIKMICRO G31	HIKMICRO G41	HIKMICRO G41H	HIKMICRO G61	HIKMICRO G61H
Native infrared resolution	384 × 288 110,592 thermal pixels	480 × 360 172,800 thermal pixels	480 × 360 172,800 thermal pixels	640 × 480 307,200 thermal pixels	640 × 480 307,200 thermal pixels
SuperIR enhanced output	768 × 576 442,368 pixels	960 × 720 691,200 pixels	960 × 720 691,200 pixels	1280 × 960 1,228,800 pixels	1280 × 960 1,228,800 pixels
Thermal sensitivity	<35 mK at 25°C	<35 mK at 25°C	<35 mK at 25°C	<35 mK at 25°C	<35 mK at 25°C
Image frequency	50 Hz	50 Hz	50 Hz	50 Hz	50 Hz
Temperature measurement range	−20°C to 650°C	−20°C to 650°C	−20°C to 2000°C	−20°C to 650°C	−20°C to 2000°C
Focus	Laser-assisted AF, continuous AF, one-shot AF, manual and touch AF	Laser-assisted AF, continuous AF, one-shot AF, manual and touch AF	Laser-assisted AF, continuous AF, one-shot AF, manual and touch AF	Laser-assisted AF, continuous AF, one-shot AF, manual and touch AF	Laser-assisted AF, continuous AF, one-shot AF, manual and touch AF
Standard lens field of view	25° × 19°	18.7° × 14°	18.7° × 14°	25° × 19°	25° × 19°
Spatial resolution (IFOV)	1.13 mrad	0.68 mrad	0.68 mrad	0.68 mrad	0.68 mrad
Minimum focus distance	0.1 m	0.3 m	0.3 m	0.3 m	0.3 m
Digital zoom	1–8× continuous	1–8× continuous	1–8× continuous	1–8× continuous	1–8× continuous
Live measurement tools	Centre, hot and cold spots; 10 user spots, 1 line, 5 rectangles, 5 circles and Delta T	Centre, hot and cold spots; 10 user spots, 1 line, 5 rectangles, 5 circles and Delta T	Centre, hot and cold spots; 10 user spots, 1 line, 5 rectangles, 5 circles and Delta T	Centre, hot and cold spots; 10 user spots, 1 line, 5 rectangles, 5 circles and Delta T	Centre, hot and cold spots; 10 user spots, 1 line, 5 rectangles, 5 circles and Delta T
Visible-light camera	8 MP	8 MP	8 MP	8 MP	8 MP
Display	4.3-inch LCD touchscreen 800 × 480	4.3-inch LCD touchscreen 800 × 480	4.3-inch LCD touchscreen 800 × 480	4.3-inch LCD touchscreen 800 × 480	4.3-inch LCD touchscreen 800 × 480
Measurement accuracy	±2°C or ±2%	±2°C or ±2%	±2°C or ±2%	±2°C or ±2%	±2°C or ±2%
Battery operation	Approx. 4 hours	Approx. 4 hours	Approx. 4 hours	Approx. 4 hours	Approx. 4 hours
Protection and durability	IP54 2 m drop-tested	IP54 2 m drop-tested	IP54 2 m drop-tested	IP54 2 m drop-tested	IP54 2 m drop-tested
Best suited to	Routine electrical and mechanical inspections where 384 × 288 resolution is sufficient	More detailed industrial inspections requiring 480 × 360 resolution and a narrower field of view	High-temperature industrial inspections requiring 480 × 360 detail and measurement up to 2000°C	Complex electrical and mechanical equipment requiring 640 × 480 native thermal detail	High-resolution inspections of furnaces, kilns and demanding industrial processes up to 2000°C

See HIKMICRO Gx1 cameras in detail

Watch HIKMICRO videos covering Gx1 thermal camera features, image detail, inspection workflow and reporting, so you can see how the cameras support electrical, mechanical and building maintenance work.

HIKMICRO Video

Introducing HIKMICRO

Watch the HIKMICRO video for a closer look at professional thermal imaging.

YouTube video

HIKMICRO Video

HIKMICRO G-Series (G31, G41, G61)

Explore HIKMICRO thermal imaging technology and camera operation.

YouTube video

HIKMICRO Video

HIKMICRO HIKMICRO G41H/G61

Learn more about HIKMICRO thermal imaging and its professional applications.

YouTube video

HIKMICRO Video

HIKMICRO G61 unboxing

Discover more about HIKMICRO professional thermal cameras.

YouTube video

Choose the HIKMICRO G31 for routine industrial inspections

The HIKMICRO G31 combines 384 × 288 native infrared resolution with 50 Hz imaging, autofocus and a 25° × 19° field of view. With 110,592 thermal pixels, it is a practical entry point to the G Series for professional inspectors working with accessible electrical and mechanical equipment.

Choose the HIKMICRO G31 for:

Routine electrical panel, switchgear and connection inspections
General condition monitoring of motors, pumps, bearings and machinery
Maintenance work where 384 × 288 resolution provides sufficient target detail
Inspections benefiting from autofocus and smooth 50 Hz thermal imaging
Equipment operating within the camera's −20°C to 650°C measurement range

Choose the HIKMICRO G41 for greater thermal detail

The HIKMICRO G41 increases native resolution to 480 × 360, providing 172,800 thermal pixels - 56% more than the G31. Its 18.7° × 14° standard field of view is narrower than the G31's, giving inspectors a more concentrated view of equipment at a given working distance.

Choose the HIKMICRO G41 for:

Electrical inspections involving smaller components and connections
Detailed checks of mechanical assemblies and industrial equipment
Inspections where 384 × 288 resolution is becoming a limitation
Work benefiting from a narrower standard field of view
Applications requiring greater detail without moving to a 640 × 480 camera

Choose the HIKMICRO G41H for high-temperature industrial equipment

The HIKMICRO G41H combines the same 480 × 360 native resolution as the G41 with an extended measurement range reaching 2000°C. Its advantage is not additional image resolution, but the ability to measure substantially hotter equipment while retaining the G41's inspection and focusing capabilities.

Choose the HIKMICRO G41H for:

Furnaces, kilns and other high-temperature industrial equipment
Foundry and thermal-processing applications
Industrial inspections where temperatures exceed the G41's 650°C limit
High-temperature assets that can be adequately inspected at 480 × 360 resolution
Teams that need extended temperature measurement without paying for a 640 × 480 detector

Choose the HIKMICRO G61 for detailed industrial maintenance

The HIKMICRO G61 steps up to 640 × 480 native infrared resolution, recording 307,200 thermal pixels - almost 2.8 times as many as the G31. Its 25° × 19° standard field of view provides a useful balance between scene coverage and detail for complex industrial inspections.

Choose the HIKMICRO G61 for:

Dense electrical panels and complex switchgear
Small mechanical components requiring more thermal image detail
Critical plant and machinery where abnormalities need careful examination
Detailed predictive maintenance and condition-monitoring programmes
Inspections where 640 × 480 resolution is valuable but temperatures remain within 650°C

Choose the HIKMICRO G61H for high-resolution, high-temperature inspections

The HIKMICRO G61H combines 640 × 480 native infrared resolution with a temperature measurement range extending to 2000°C. It provides the highest detector resolution and temperature capability available together in the G Series.

Choose the HIKMICRO G61H for:

Detailed thermal inspections of furnaces, kilns and process equipment
High-temperature industrial assets with small or complex inspection targets
Condition monitoring requiring both 640 × 480 resolution and measurement above 650°C
Critical industrial processes where thermal anomalies need to be documented precisely
Teams needing the G Series' highest combined resolution and temperature capability

What do the resolution differences mean in practice?

The five G Series models use three different native infrared detector resolutions:

G31: 384 × 288 — 110,592 thermal pixels
G41 and G41H: 480 × 360 — 172,800 thermal pixels
G61 and G61H: 640 × 480 — 307,200 thermal pixels

The G41 records approximately 56% more native thermal pixels than the G31, while the G61 records approximately 78% more than the G41.

Higher native resolution is particularly useful when inspecting smaller components, complex equipment or targets that cannot be approached closely. However, detector resolution is only part of the decision: lens field of view and working distance also determine how much useful detail reaches the sensor.

All five models support HIKMICRO SuperIR image enhancement, which produces higher-resolution processed output without increasing the detector's native pixel count.

When should you choose a high-temperature H model?

The G31, G41 and G61 measure temperatures up to 650°C, covering many electrical, mechanical and general industrial maintenance applications.

The G41H and G61H extend that upper limit to 2000°C, making them more appropriate for furnaces, kilns, foundries and other high-temperature processes.

The H designation does not indicate higher resolution. The G41 and G41H both use 480 × 360 detectors, while the G61 and G61H both use 640 × 480 detectors.

Choose an H model when your temperature measurement requirements justify it, not simply because it sits higher in the range.

How do lens choice and working distance affect the comparison?

The standard lens configurations differ across the range:

G31: 25° × 19°
G41 and G41H: 18.7° × 14°
G61 and G61H: 25° × 19°

A narrower field of view concentrates the camera's available thermal pixels on a smaller scene, which can improve target detail at a given distance. A wider view is useful when inspecting larger areas or working closer to equipment.

HIKMICRO also lists compatible wide-angle and telephoto accessories for the G Series. Their compatibility should be checked against the specific camera model rather than assuming every accessory fits every configuration.

Capabilities shared by the G Series

50 Hz infrared image frequency
HIKMICRO SuperIR image enhancement
Thermal sensitivity better than 35 mK under specified test conditions
Laser-assisted, continuous, one-shot, manual and touch autofocus modes
8 MP visible-light camera
4.3-inch, 800 × 480 touchscreen
Radiometric JPEG image capture
Live measurement tools including spots, areas, lines and temperature differences
Voice and text annotations
Inspection route functionality
Wi-Fi, Bluetooth and USB-C connectivity
Approx. four hours of battery operation
IP54 protection and 2 m drop-test specification

All five models support inspection documentation and analysis through HIKMICRO's software ecosystem. The principal purchasing decisions remain detector resolution, working distance, lens choice and temperature range.

HIKMICRO G Series FAQs

Clear answers to the most common questions about choosing between the HIKMICRO G31, G41, G41H, G61, G61H.

Native resolution and temperature range. The G31 has 384 × 288 resolution, the G41/G41H have 480 × 360 and the G61/G61H have 640 × 480. The G41H and G61H measure up to 2000°C; the other three models reach 650°C. The standard lens field of view also differs.

The G31 is suitable for many routine inspections of accessible panels and connections. The G41 provides more detail for smaller targets, while the G61 has the highest native resolution for complex switchgear and demanding electrical inspections. The best choice depends on component size, inspection distance and the detail needed for reporting.

HIKMICRO lists compatible wide-angle and telephoto lens accessories for the G Series, but compatibility varies by camera model. Check the exact accessory and camera configuration before ordering. Do not assume an accessory designed for one G model fits another.

The G31, G41 and G61 measure from −20°C to 650°C. The G41H and G61H extend the range from −20°C to 2000°C. These are overall measurement limits; accuracy and measurement conditions must also be considered.

SuperIR is HIKMICRO's image enhancement technology. It produces processed images with higher pixel dimensions, but it does not change the physical resolution of the infrared detector. For example, the G61 has a native 640 × 480 detector and can generate 1280 × 960 SuperIR output.

Not inherently. Their primary advantage is their extended temperature measurement range. The datasheets list accuracy of ±2°C or ±2% under specified conditions. Choose between the H and standard models according to the temperatures you need to measure, rather than assuming the H designation means greater overall accuracy.

Yes. The range supports inspection routes, radiometric JPEG capture, measurement tools and image annotations. HIKMICRO Analyzer software can be used to examine thermal images and prepare reports, making the cameras suitable for repeat maintenance and condition-monitoring programmes.

Choose the G41 if its 480 × 360 detector and narrower 18.7° standard field of view provide sufficient detail at your normal working distance. Choose the G61 if you need 640 × 480 native resolution for smaller, more distant or more complex targets. Compare the actual lens configuration as well as detector resolution.