Pixfra Arc LRF A635 Pro 20mK Thermal Imaging Monocular
The Arc LRF series introduces the next step for the Arc series, bringing all of the powerful technology and image clarity found in the Arc series and adding a seamlessly integrated laser rangefinder. This new LRF enables accurate distance measurements at a range of up to 1000m, providing valuable distance data in the field.
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The Arc A635P LRF combines an extremely sensitive 640×512, 12µm, <20mK NETD thermal sensor and a powerful 35mm f1.0 objective lens, achieving a generous 21.9×17.6m @ 100m FOV, unprecedented thermal clarity, and a detection range of up to 1800m.
The sensor’s 20mK NETD thermal sensitivity achieves richly detailed and vivid thermal imagery, capturing each and every anatomical detail of even the smallest observed heat source, elevating your observation experience regardless of conditions. Pixfra’s intuitive PIPS (Pixfra Image Processing System) 2.0 achieves thermal imagery that is always crisp and clear by minimising environmental noise, boosting contrast, and enhancing image clarity and detail.
Gather Important Distance Data in the Field
The Arc LRF series, as its name suggests, now includes a seamlessly integrated precision laser rangefinder. This LRF will provide distance measurements in the field at a range of up to 1000m with an accuracy of ±1m, making it perfect for data gathering when you need it most and allowing for informed decision-making during observations.
The addition of a laser rangefinder does nothing to impede your observation experience, as it is so seamlessly integrated as to be virtually unnoticeable.
Designed for Comfortable Observation
Retaining the familiar design aspects of the original Arc series, the Arc LRF features a few changes to make sure your observation experience is as comfortable as possible. These ergonomic upgrades include a new contoured eyecup and a refined grip with a textured rubberised covering to improve your hold on the device in any weather conditions.
Its compact magnesium alloy bodyshell results in a lightweight device that remains comfortable in the hand during long periods of observation. But don’t let its size fool you, this monocular is built to last, withstanding the everyday bumps and knocks one comes to expect whilst working in varying scenarios. Its IP67 even protects the device against adverse weather, allowing it to work unimpeded by heavy rain, dense fog, snow, or high levels of humidity.
Uninterrupted Thermal Observation
Provided with two 18650 batteries, each providing up to 7 hours of battery life (depending on temperature) the Arc LRF is more than capable of keeping your observations going through the day and well into the night. A secure fit, twist cap battery cover, and the ability to swap between batteries quickly and easily makes sure you can worry less about power consumption and focus more on the task at hand.
Share the View
Connect the Arc LRF to the intuitive Pixfra Outdoor app and enhance your observation experience even further. Through the app, the Arc LRF can share its screen with up to four people located within 20m of the device — so, when one person spots an object or animal of interest, all four members of the group can observe at the same time, without having to share the device’s viewfinder.
Features
- Vanadium oxide uncooled focal plane detector
- Fully integrated 1000m laser range finder
- FHD OLED display
- Replaceable 18650 battery
- Left and right hand user friendly design
- Lightweight and portable
- Six colour palettes
- Built-in 32GB
- IP67 rated
Specification
- Detector Type: Vanadium oxide uncooled focal plane detector
- Effective Pixels: 640 (H) × 512 (V)
- Pixel Pitch: 12 μm
- Spectral Range: 8 μm–14 μm
- Sensitivity (NETD): ≤20 mK@f/1.0, 25 °C
- Focal Length: 35 mm
- Aperture: F1.0
- Field of View: H: 12.5°; V: 10°/H: 21.9 m; V: 17.6 m (@100 m)
- Focus Control: Manual
- Close Focus Distance: 2 m (6.56 ft)
- Detection Distance: 1,800 m (4,265.09 ft)
- Recognition Distance: 1,100 m (2,624.67 ft)
- Identification Distance: 700 m (1,640.42 ft)
- Magnification: 2.36x
- Frame Rate: 50 Hz
- Screen: 1440 × 1080, OLED
- Color Palettes: 6 (white hot/black hot/iron red/alarm/emerald/amber)
- Video Compression: H.264
- Diopter: –3 D to +5 D
- Eye Relief: 15 mm (0.59 inch)
- Exit Pupil: 8 mm (0.31 inch)
- Digital Zoom: 1×, 2×, 4×, 8×
- Video Recorder: Yes
- Snapshot: Yes
- Wi-Fi Hotspot: Yes
- Hot Spot Track: Yes
- FFC Calibration: Auto, Manual, External Correction
- Standby Mode: Yes
- DPC (Defective Pixel Correction): Yes
- Storage: Built-in EMMC (32 GB)
- Max. Distance (LRF): 1,000 m (3,280.84 ft)
- Min. Distance (LRF): 10 m (32.81 ft)
- Accuracy (LRF): ±1 m (3.28 ft)
- Safety Class (LRF): 1
- Wavelength (LRF): 905 nm
- Battery Type: Replaceable 18650 battery
- Battery Life: 6 h@25 °C (Wi-Fi off, LRF off)
- Power Supply: 5 VDC/2 A
- Port: USB Type-C
- Overvoltage Protection: Yes
- Operating Temperature: –30 °C to +55 °C (–22 °F to +131 °F)
- Operating Humidity: ≤95%
- Protection Grade: IP67
- Dimensions: 172 mm × 53 mm × 78 mm (6.77" × 2.09" × 3.07")
- Weight: ≤375 g (0.83 lb) (battery excluded)
What you get
- Pixfra Arc LRF A635P
- 2 x 18650 Li-ion Batteries
- USB-C Cable
- Dual Battery Charger
- Carry Case
- Carry Pouch
- Lens Cleaning Cloth
- Wristband
- Quick Start Guide
Warranty
This comes with a 3 year warranty from Pixfra. See the User Manual that comes with the Pixfra Arc LRF Pro.
Order by 3pm for same working day dispatch on in stock items, orders placed after 3pm will be dispatched on the next working day (Monday to Friday, excluding bank holidays).
Free Delivery
All UK orders over £40 will receive free standard delivery, all UK orders over £99 will receive free express delivery and all UK orders over £500 will receive free next day delivery.
Order Tracking
All orders are dispatched via tracked delivery methods by DPD or Royal Mail, once your order has been dispatched you will receive a notification email which includes tracking details for your order. When the courier receives your order you may receive a notification email or text with additional tracking details and redelivery options.
Just a quick note — your courier tracking email or text will show ‘Night Spark Ltd’ as the sender. Don’t worry, that’s us! Night Master trades under Night Spark Ltd.
DPD PIN Code Service
For all next day delivery and high value orders, we now use DPD’s secure PIN Code Service to ensure your parcel reaches you safely and securely. When your order is dispatched, you’ll receive a unique delivery PIN Code by email and/or text from DPD. On the day of delivery, the driver will ask for this PIN and enter it into their scanner as confirmation, giving you complete confidence that your parcel will never be left unattended or handed to the wrong person.
To make sure you receive your PIN, please provide your current mobile number and email address at checkout — you or a trusted person will need to provide this code when the courier arrives.
Please note that due to this enhanced security, in-flight delivery options (such as changing the delivery address or leaving with a neighbour) will not be available.
1-Hour Time Slot
On the day your order is due to be delivered you may receive an email or text from the courier with a 1-hour time slot for delivery (depending on location and delivery service).
Mainland UK
| Delivery Service | Timescale (estimated) | Price |
| Standard Delivery | Two to three working days | £3.95 (Free on orders over £40) |
| Express Delivery | One to two working days |
£4.95 (Free on orders over £99) |
| Next Day Delivery (PIN Code Service) | Next working day | £7.95 (Free on orders over £500) |
| Saturday Delivery (PIN Code Service) | Delivery on Saturday | £13.95 |
Channel Islands, Isle of Man, Northern Ireland, Scotland & Scottish Highlands
| Delivery Service | Timescale (estimated) | Price |
| Standard Delivery | Two to five working days | £3.95 (Free on orders over £40) |
|
Express Delivery |
One to three working days |
£4.95 (Free on orders over £99) |
Republic of Ireland
| Delivery Service | Timescale (estimated) | Price |
| European Tracked | Two to five working days | £10.95 |
Europe
| Delivery Service | Timescale (estimated) | Price |
| European Tracked | Five to seven working days | £13.95 |
International
| Delivery Service | Timescale (estimated) | Price |
| International Tracked | Five to fifteen working days | £15.95 |
Orders to European and International destinations are calculated at 0% VAT, the prices displayed on our website are set to adjust accordingly based on the country that you are shopping from (for example if you're shopping from Ireland prices will display at 0% VAT which is the price you'll pay at checkout).
Customs and duty may be payable upon import depending on order value and contents, any fees will be calculated upon import to your country by the courier(s) who will notify you via email or text if payment is required.
Important Information
Please do check that the item is marked as "in stock" if you are expecting your item to be dispatched on the same working day that you placed your order. If your order contains "custom-made to order", "fast-delivery ships in x working days" or "pre-order" items we will ship your complete order once all items become available unless notified otherwise.
All orders are shipped to arrive within the time frame estimated above after your order has been dispatched, however please note that this is not a guaranteed service and during unexpected circumstances delays can happen, we can only apologise for any inconveniences caused.
Missing Items
In the unlikely event that a parcel goes missing, a replacement or refund will be issued once the courier has confirmed the loss and completed their missing item investigation process. If you believe that your parcel is missing, please contact us in writing using the email address you placed your order with and we will contact the courier to start an investigation.
Once the courier has confirmed that the parcel is missing, you will be required to sign a loss confirmation document which may be sent via post — this must be returned to the courier, once the signed document has been received and acknowledged by the courier, a replacement or refund will be issued.
As a small family business, we appreciate your patience and understanding throughout this process. We take matters like this seriously and work hard to ensure everything is handled correctly and efficiently.
Important Information - UK Delivery Only
Thermal imaging and night vision products are strictly controlled by ITAR regulations and are subject to UK Government Export Licensing Regulations. Dependent on specification, a licence may need to be obtained prior to the export, even temporarily (e.g. holiday), from the UK.
Additionally, some countries may be embargoed, and no thermal imagers or night vision devices can be taken or exported to them. It is the responsibility of the exporter, whether it be a company or individual, to ensure that such a licence is obtained.
Payment methods
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