P13: The entry-level LUMI. Best for affordability, portability and closer-range thermal scanning.

L19: A useful step up to 384×288 resolution while retaining a wide field of view. A strong choice for general scanning at closer and medium distances.

L35: Uses a longer 35mm lens and 4× base magnification for more distance-focused observation and up to 1,800m stated detection.

H35: Upgrades to a 640×512 sensor while retaining the 35mm lens, providing considerably more thermal detail and a wider field of view than the L35.

L35R: Combines the 384×288 / 35mm platform with an integrated 800m laser rangefinder.

H35R: The highest-specification LUMI, combining 640×512 thermal resolution, a 35mm F0.9 lens and integrated 800m laser rangefinding.

Best affordable option – LUMI P13:
Choose the P13 if you want an affordable introduction to thermal imaging. Its wide field of view and 2× base magnification make it particularly suitable for closer-range scanning.

Best wide-field value – LUMI L19:
The L19 is a significant step up from the P13 thanks to its 384×288 sensor while retaining a wide 24 × 18m field of view at 100m. It is an excellent general-purpose option where scanning ability matters more than maximum reach.

Best 384×288 option for distance – LUMI L35:
Choose the L35 if you want more image scale and longer-distance capability. Its 35mm lens, 4× base magnification and up to 1,800m stated detection make it much more distance-focused than the L19.

Best all-round image quality – LUMI H35:
The H35 combines a 640×512 sensor with a 35mm F0.9 lens and relatively low 2.5× base magnification. This gives it both high thermal detail and a useful field of view, making it arguably the strongest all-round non-LRF LUMI.

Best-value LRF option – LUMI L35R:
Choose the L35R if you want the distance-focused characteristics of the L35 but also need an integrated laser rangefinder.

Best overall LUMI – LUMI H35R:
The H35R combines the higher-resolution 640×512 sensor with a 35mm F0.9 lens and integrated laser rangefinder. Choose it when both image quality and accurate distance measurement are priorities.

Thermal sensor resolution has a major influence on the amount of detail available in the image.

256×192 – P13: Suitable for basic detection and closer-range scanning. It is the most affordable option, but fine detail is more limited, particularly as digital magnification increases.

384×288 – L19, L35 and L35R: A substantial increase in thermal information over 256×192 and a strong balance between performance and price.

640×512 – H35 and H35R: Provides 327,680 thermal pixels compared with 110,592 on a 384×288 detector. This gives considerably greater thermal detail and allows the image to retain more useful information as subjects become smaller or digital magnification is applied.

The objective lens changes both the field of view and the apparent size of distant targets.

The L19's 19mm F0.9 lens is designed around a wide field of view. At 100m it shows approximately 24 × 18m, making it particularly effective for quickly searching larger areas.

The 35mm models provide greater image scale and longer-range capability. The L35 and L35R start at 4× magnification, while the higher-resolution H35 and H35R start at 2.5× and retain a wider 22 × 16m field of view at 100m.

For closer-range scanning, favour the L19. For more distant observation, one of the 35mm models will generally be the better choice.

The L35R and H35R add an integrated laser rangefinder capable of measuring distances up to approximately 800 metres.

A thermal detector can show you where a heat source is, but judging its exact distance through a thermal image can be difficult. An integrated LRF allows you to detect a target, observe it and measure its distance using the same device.

If you do not need accurate distance measurement, the standard L35 and H35 provide comparable core thermal imaging performance to their corresponding R models without paying for the additional LRF functionality.

The quoted detection range tells you approximately how far away the thermal imager can detect a sufficiently large heat source under the manufacturer's specified conditions. It should not be confused with identification range.

For example, a LUMI model may be capable of detecting that a heat source is present at a considerable distance without providing enough detail to determine exactly what that heat source is.

Real-world usable distance depends on target size, weather, thermal contrast, vegetation and the amount of digital magnification being used.

NocPix thermal imaging products are supplied with manufacturer warranty cover when purchased through an authorised dealer.

• Main unit: 3-year warranty
• Battery: 2-year warranty
• Thermal detector: 10-year warranty

Warranty periods begin from the purchase date shown on your invoice and remain subject to NocPix's current warranty terms.

When you purchase a NocPix LUMI thermal monocular from Bamfords, Bamfords is your point of contact should you require assistance with a warranty claim.

Which NocPix LUMI has the best image quality?
The H35 and H35R use the highest-resolution sensors in the current LUMI range at 640×512. The H35R adds an integrated laser rangefinder, while the H35 does not.

Which NocPix LUMI has the longest detection range?
The L35, H35, L35R and H35R all have manufacturer-stated detection ranges of up to approximately 1,800 metres.

Which NocPix LUMI is best for scanning?
The L19 is particularly strong for wide-area scanning thanks to its 2× base magnification and 24 × 18m field of view at 100m. The H35 and H35R are excellent higher-resolution alternatives with a wide 22 × 16m field of view.

Which NocPix LUMI models have a laser rangefinder?
The L35R and H35R feature integrated laser rangefinders capable of measuring distances up to approximately 800 metres.

What does the R mean on a NocPix LUMI?
Within the current LUMI range, the R models are the versions equipped with an integrated laser rangefinder.

Is the H35 worth buying over the L35?
The H35 uses a substantially higher-resolution 640×512 sensor compared with the L35's 384×288 sensor. Both use 35mm F0.9 lenses and have the same stated maximum detection range, but the H35 provides more thermal detail and a wider field of view.

What is the cheapest NocPix LUMI?
The P13 is the entry-level model in the range and is designed for users prioritising affordability and closer-range thermal detection.