NocPix LUMI H35 Thermal Imaging Monocular
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The NocPix LUMI H35 Thermal Imaging Monocular combines a high-resolution 640×512 thermal sensor with a fast 35mm F0.9 germanium objective lens in an exceptionally compact handheld design. With ≤18mK thermal sensitivity, 50Hz imaging and a wide 12.5° × 9.4° field of view, the H35 is designed to provide detailed thermal observation without the size and weight associated with many premium 640-resolution thermals.
At just 345g including its battery, the LUMI H35 is particularly well suited to users who spend long periods scanning on foot. Its 2.5× base magnification gives a useful balance between field of view and target detail, while the 35mm objective provides a manufacturer-stated detection range of up to 1,800 metres.
NocPix complements the H35's hardware with Reality+ image processing, electronic image stabilisation, silent controls and multiple colour palettes. A replaceable 18650 battery, 32GB internal storage, photo and video recording, built-in microphone and IP67 protection make the H35 a genuinely capable compact thermal monocular rather than simply a stripped-down lightweight model.
- 640×512 thermal imaging sensor
- 12μm pixel pitch
- ≤18mK NETD thermal sensitivity
- Fast 35mm F0.9 germanium objective lens
- 2.5–20× magnification
- 12.5° × 9.4° field of view
- 22m × 16m field of view at 100m
- Detection range up to 1,800 metres
- Smooth 50Hz refresh rate
- 1024×768 AMOLED display
- Reality+ image enhancement processing
- Electronic image stabilisation
- Silent button operation
- Replaceable 18650 rechargeable Li-ion battery
- Up to 4.5 hours stated operating time
- 32GB internal storage
- Photo, video and audio recording
- IP67 protection
- 345g including battery
640×512 Sensor & ≤18mK NETD
The LUMI H35 sits at the top of the standard LUMI range thanks to its high-resolution 640×512 thermal detector with a 12μm pixel pitch.
Compared with the 384×288 detector used by the L35, the H35 captures substantially more thermal information. This improves fine detail and target definition and gives the H35 a wider field of view when both models are paired with their 35mm objective lenses.
The detector is rated at ≤18mK NETD. A low NETD figure means the sensor can distinguish smaller differences in temperature, helping preserve useful detail when natural thermal contrast is reduced by damp, foggy or overcast conditions.
35mm F0.9 Germanium Lens
The H35 uses a fast 35mm F0.9 germanium objective lens. The F0.9 aperture allows more infrared energy to reach the thermal detector than a conventional F1.0 design, helping the sensor produce a brighter and more informative thermal image.
Combined with the 640×512 sensor, the 35mm focal length provides 2.5× base magnification and a 12.5° × 9.4° field of view, equivalent to approximately 22m × 16m at 100 metres.
This makes the H35 particularly versatile. It retains enough field of view for efficient scanning while still providing useful native magnification for observing heat sources at distance.
2.5–20× Magnification & 1,800m Detection
The LUMI H35 starts at 2.5× base magnification and provides digital magnification up to 20×.
NocPix specifies a maximum thermal detection range of up to 1,800 metres using a standard 1.7m × 0.5m target at P(n)=99%.
Detection range refers to the ability to establish that a heat source is present. Recognition and positive identification take place at shorter distances and depend on target size, weather, atmospheric conditions and thermal contrast.
Reality+ Image Processing & Electronic Stabilisation
NocPix equips the LUMI range with its Reality+ image processing algorithms, designed to improve the presentation of the thermal information captured by the detector and reduce unwanted image noise.
The H35 also incorporates electronic image stabilisation. This can help steady the viewed image during handheld observation, particularly when digital magnification is being used and small hand movements become more noticeable.
Combined with the H35's 50Hz refresh rate, these processing features help produce a smooth and usable image when scanning or following moving heat sources.
1024×768 AMOLED Display & 10mm Exit Pupil
The LUMI H35 uses a 1024×768 AMOLED display to present the thermal image through the eyepiece.
AMOLED technology provides strong contrast and deep blacks, while the 10mm exit pupil diameter is designed to make eye positioning more forgiving during handheld observation.
The dioptre can be adjusted from -5D to +5D to help users obtain a sharp view of the display without relying on their normal distance-vision correction in many situations.
Compact 345g Pocket-Size Design
Portability is one of the main reasons to choose the LUMI platform. The H35 measures approximately 143 × 47 × 74mm and weighs around 345g including its battery.
That compact form makes it easy to carry in a jacket pocket, kit bag or pouch and significantly reduces fatigue during longer handheld scanning sessions.
The small size is particularly impressive considering the H35 still incorporates a 640×512 sensor, 35mm F0.9 objective, recording system, Wi-Fi capability and removable battery.
Battery System & Runtime
The NocPix LUMI H35 is powered by a replaceable rechargeable 18650 Li-ion battery. The removable design means the battery can be exchanged rather than requiring the monocular to be taken out of use while a permanently installed battery recharges.
NocPix also incorporates reverse-polarity battery support, allowing the compatible 18650 cell to power the device regardless of which way it is inserted. This is particularly useful when replacing a battery in darkness.
| Battery Type | Replaceable rechargeable 18650 Li-ion |
| Battery System | Removable with reverse-polarity support |
| Maximum Stated Runtime | Up to 4.5 hours |
| External Power | 5V USB Type-C |
Actual operating time depends on temperature and the use of functions such as Wi-Fi, photography and video recording. A spare compatible 18650 battery can be carried for extended observation sessions.
Recording, Microphone & 32GB Storage
The LUMI H35 incorporates 32GB of internal storage and supports both thermal photography and video recording.
A built-in microphone is also supported, allowing compatible video recordings to include audio. This makes it easy to record observations directly through the monocular without needing a separate recording device.
IP67 Protection & Field Use
The LUMI H35 carries an IP67 ingress-protection rating, helping protect the monocular against dust and water during outdoor use.
NocPix specifies an operating-temperature range of -20°C to +50°C, allowing the H35 to be used across a broad range of seasonal and weather conditions.
LUMI H35 vs L35
The H35 and L35 use the same 35mm F0.9 objective lens, but their thermal detectors produce noticeably different viewing characteristics.
| LUMI H35 | 640×512 | 2.5–20× | 12.5° × 9.4° FOV | 1,800m detection |
| LUMI L35 | 384×288 | 4–16× | 7.5° × 5.7° FOV | 1,800m detection |
The H35's larger 640×512 detector gives it substantially more thermal resolution and a much wider field of view. Its lower 2.5× starting magnification also makes scanning easier.
The L35 starts at 4× and produces a narrower view, making it a more affordable option for users who prefer greater native magnification and do not require the resolution or wider view of the H35.
LUMI H35 vs H35R
The LUMI H35 and H35R share the same core 640×512 thermal resolution, 35mm F0.9 objective lens, 2.5× base magnification and 12.5° × 9.4° field of view.
The major difference is the laser rangefinder. The H35 is the standard compact thermal monocular, while the H35R adds an integrated LRF for measuring distance directly through the device.
Choose the H35: if you want the 640×512 LUMI platform and do not need an integrated rangefinder.
Choose the H35R: if you want the same core thermal performance with integrated distance measurement.
Which NocPix LUMI Should You Choose?
LUMI P13 — the compact entry point to the range, with a 256×192 sensor and wide 13mm lens.
LUMI L35 — a 384×288, 35mm model with higher 4× base magnification for users wanting greater native reach at a lower price than the H-series.
LUMI L35R — the 384×288 35mm platform with integrated laser ranging.
LUMI H35 — the premium standard LUMI, combining a 640×512 detector with a wide field of view and compact 345g design.
LUMI H35R — choose this when you want the 640×512 H35 platform together with an integrated laser rangefinder.
Full Specifications
| Model | NocPix LUMI H35 |
| Device Type | Thermal imaging monocular |
| Thermal Sensor | 640×512 |
| Pixel Pitch | 12μm |
| NETD | ≤18mK |
| Frame Rate | 50Hz |
| Objective Lens | 35mm F0.9 |
| Magnification | 2.5–20× |
| Field of View | 12.5° × 9.4° |
| Field of View at 100m | 22m × 16m |
| Detection Range | Up to 1,800m |
| Display | 1024×768 AMOLED |
| Eye Relief | 25mm |
| Exit Pupil | 10mm |
| Dioptre Adjustment | -5D to +5D |
| Laser Rangefinder | No |
| Internal Storage | 32GB |
| Microphone | Supported |
| Photo / Video Recording | Supported |
| Battery Type | Replaceable rechargeable 18650 Li-ion |
| Maximum Operating Time | Up to 4.5 hours |
| Ingress Protection | IP67 |
| Operating Temperature | -20°C to +50°C |
| Weight | 345g including battery |
| Dimensions | 143 × 47 × 74mm |
What's in the Box?
The NocPix LUMI H35 package includes the thermal monocular and the accessories required for normal operation and charging.
- NocPix LUMI H35 Thermal Imaging Monocular
- Rechargeable 18650 Li-ion battery
- USB data / charging cable
- Carry bag
- Wrist strap
- Lens cleaning cloth
- Quick-start documentation
The H35 uses a removable 18650 battery, allowing a compatible spare battery to be carried and exchanged during longer sessions.
Warranty
The NocPix LUMI H35 is covered by NocPix's manufacturer's warranty, with separate warranty periods applying to the main device, rechargeable battery and thermal detector.
| Main Device | 3 years |
| Rechargeable Battery | 2 years |
| Thermal Detector | 10 years |
For products purchased through a NocPix certified distributor or dealer, the manufacturer's warranty period begins from the purchase date shown on the invoice.
The warranty covers qualifying performance failures caused by material, process or manufacturing defects under normal use and maintenance. It does not cover accidental damage, misuse, unauthorised modification or repair, or damage caused by use, maintenance or storage contrary to the manufacturer's instructions.
Please retain your Bamfords Online invoice as proof of purchase. If a qualifying warranty issue develops with your LUMI H35, contact Bamfords Online for assistance with the warranty process.
Frequently Asked Questions
What sensor does the NocPix LUMI H35 use?
The H35 uses a 640×512 thermal detector with a 12μm pixel pitch and ≤18mK NETD thermal sensitivity.
What is the detection range of the LUMI H35?
NocPix specifies a maximum detection range of up to 1,800 metres using a standard 1.7m × 0.5m target at P(n)=99%. Recognition and positive identification distances will be shorter.
Does the LUMI H35 have a laser rangefinder?
No. The standard H35 does not have an integrated LRF. Choose the LUMI H35R if integrated laser ranging is required.
What battery does the LUMI H35 use?
The H35 uses a removable rechargeable 18650 Li-ion battery with reverse-polarity support.
How long does the LUMI H35 battery last?
NocPix specifies a maximum operating time of up to 4.5 hours. Actual runtime varies according to temperature and use of functions such as Wi-Fi and recording.
Can I carry a spare battery?
Yes. The H35's 18650 battery is removable, making it straightforward to carry a compatible charged spare for longer observation sessions.
What is the difference between the LUMI H35 and L35?
The H35 uses a higher-resolution 640×512 sensor and provides a wider 12.5° × 9.4° field of view. The L35 uses a 384×288 detector and starts at a higher 4× base magnification.
What is the difference between the H35 and H35R?
The two models share the same core 640×512, 35mm thermal platform. The H35R adds an integrated laser rangefinder, while the H35 does not.
Does the LUMI H35 record video?
Yes. It supports thermal photography and video recording, includes 32GB of internal storage and has microphone support for recording audio.
Is the LUMI H35 waterproof?
The H35 carries an IP67 ingress-protection rating, providing protection against dust and water in accordance with that rating.
What warranty does the NocPix LUMI H35 have?
NocPix specifies a 3-year warranty for the main device, a 2-year warranty for the rechargeable battery and a 10-year warranty for the thermal detector, subject to the manufacturer's warranty terms.
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