Pixfra Arc A613 PRO 18mK Thermal Imaging Monocular
£1,249.96 ex. VAT
Featuring a highly sensitive 640×512, 12μm, <18mK NETD thermal sensor paired with a fast 13mm f1.0 objective lens, the new Pixfra Arc A613 PRO delivers a detection range of up to 700m — picking out the faintest heat signature at distance and rendering it as a sharp, full colour image on a 1440×1080 OLED display.
Built for serious fieldwork, the Arc A613 PRO adds a built-in video recorder, six selectable colour palettes, and screen sharing through the Pixfra app, so a single spotted animal doesn't have to mean a single set of eyes on it.
A Wide Field of View, Built for Ecology Work
Where many thermal monoculars chase magnification at the expense of everything around the subject, the Arc A613 PRO keeps the same generous 32.3° (H) / 25.8° (V) field of view that made the original A613 a favourite among ecologists. For bat surveys, bird activity monitoring, and general wildlife and animal survey work, a wide field of view matters more than raw zoom — it's what lets you catch movement at the edge of frame and follow fast, unpredictable activity across an open area rather than losing it outside a narrow tunnel of view. The PRO carries this strength forward while adding genuinely improved thermal sensitivity and reach, so nothing about the upgrade compromises the wide-angle performance ecologists rely on. As with the rest of the Arc range, continuous video recording of up to 2 hours per clip is built in, making it easy to capture full survey sessions for later review.
See More, in Tougher Conditions
The Pixfra Arc A613 PRO takes the compact, cost-effective formula of the original Arc A613 and sharpens its core performance. Thermal sensitivity is improved to <18mK NETD — a meaningful step up that keeps detail visible in cold, damp, or low-contrast conditions where a less sensitive sensor would start to struggle. Combined with the 700m detection range, this makes the A613 PRO equally at home with a professional ecologist logging bat activity along a transect, an estate manager keeping watch over boundaries and woodland, or a wildlife enthusiast tracking nocturnal visitors to the garden.
Extended Sessions After Dark
Two replaceable, rechargeable batteries give the Arc A613 PRO up to 6 hours of runtime each, so a long survey or an all-night observation session isn't cut short by a flat battery — swap in a spare and keep going.
Share the View
The Arc A613 PRO connects to up to four smart devices at once through the free Pixfra app, letting the whole survey team see the same live thermal feed on their own phone or tablet from up to 20m away. The moment one person spots something of interest, everyone can watch it together — no passing the monocular round and no missed detail.
Available free for both Android and iOS.
Comfortable in the Hand, Ready for the Field
An ergonomic bodyshell and sensibly laid-out controls keep the Arc A613 PRO easy to operate one-handed, even during long observation periods. At just 370g it won't weigh you down on a long survey walk, and it tucks easily into a pack or jacket pocket between uses.
The magnesium alloy casing shrugs off the everyday knocks of fieldwork, while an IP67 rating means a splash of rain or a dunk in a puddle won't put it out of action. It's rated to keep working in temperatures from –30°C to +55°C, so it's just as usable on a frosty winter survey as a summer evening out.
Specification
| Thermal Sensor | 640×512, 12μm, <18mK NETD |
| Detector Type | Vanadium oxide uncooled focal plane detector |
| Spectral Range | 8μm~14μm |
| Frame Rate | 50 Hz |
| Objective Lens | 13mm f1.0 |
| Field of View | H: 32.3°; V: 25.8° — wide FOV, ideal for bat surveying and wildlife observation |
| Detection Range | 700m |
| Magnification | 1.1x |
| Colour Palettes | 6 (white hot/black hot/iron red/alarm/amber/emerald) |
| Close Focus Distance | 0.5m |
| Digital Zoom | 1x, 2x, 4x, 8x |
| Display Screen Dimensions | 0.41 inch, OLED |
| Screen Resolution | 1440 x 1080 |
| Diopter | -4D ~ +5D |
| Eye Relief | 15mm |
| Uniformity Correction | Auto; Manual |
| Storage | Built-in EMMC (32 GB) |
| Video Recording | Yes (up to 2-hours per clip) |
| Audio Recording | Yes |
| Hot Spot Trace | Yes |
| Wi-Fi | Yes |
| Power Supply | 5 V Type-C |
| Battery Type | 2 x rechargeable 18650 Li-ion batteries |
| Battery Capacity | 3,200 mAh (each) |
| Battery Operating Life | Up to 6h per battery |
| Operating Temperature | –30 °C to +55 °C (–22 °F to +131 °F) |
| Storage Temperature | –30 °C to +70 °C (–22 °F to +158 °F) |
| Protection | IP67 |
| Product Dimensions | 175 mm × 53 mm × 78 mm (6.89′′ × 2.09′′ × 3.07′′) (L × W × H) |
| Packaging Dimensions | 227 mm × 150 mm × 132 mm (8.93′′ × 5.90′′ × 5.19′′) (L × W × H) |
| Net Weight | ≤370 g (excluding battery weight) |
What's in the box
Pixfra Arc A613 PRO
2 x 18650 Li-ion Batteries
USB-C Dual Bay Charger
L-Shaped Tripod Adapter
Rubber Eyecup
Carry Case
Carry Pouch
User Manual
Lens Cleaning Cloth
Warranty
Backed by a 3 year warranty from Pixfra. Full details are included in the User Manual supplied with the Pixfra Arc A613 PRO.
We currently deliver throughout the United Kingdom including Northern Ireland, all orders are dispatched using tracked delivery services via DPD or Royal Mail.
Free Delivery
- Free Standard Delivery on orders over £75
- Free Express Delivery on orders over £150
- Free Next Day Delivery on orders over £500
Order Tracking
Once your order has been dispatched, you will receive a confirmation email containing your tracking information.
On the day of delivery, you may also receive updates directly from the courier by email or text message, including a delivery time slot where available.
Please note that tracking notifications may show Night Spark Ltd as the sender. Night Master trades under Night Spark Ltd.
Delivery Services
Delivery times are estimated from dispatch after your order has been processed.
| Delivery Service | Estimated Delivery Time | Price |
|---|---|---|
| Standard Delivery | 2 to 3 working days | £3.95 (Free on orders over £75) |
| Express Delivery | 1 to 2 working days | £4.95 (Free on orders over £150) |
| Next Day Delivery | Next working day delivery* | £7.95 (Free on orders over £500) |
| Saturday Delivery | Saturday delivery* | £13.95 |
*Next Day Delivery orders must be placed before 1pm Monday to Friday, and Saturday Delivery orders must be placed before 1pm on Friday (excluding bank holidays). Orders placed after this time will be delivered on the next available working day.
Deliveries to Northern Ireland and Scottish Highlands & Islands may take an additional 1–2 working days.
Dispatch Information
We aim to dispatch all In Stock items within 1 working day (Monday to Friday, excluding bank holidays).
Products marked as Pre-Order, Made to Order, or Backorder have extended lead times, which are clearly displayed on the relevant product pages.
PIN Code Service
For selected 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.
Delays
We always aim to deliver within the estimated delivery times shown above. Occasionally, delays can occur due to factors outside our control, including adverse weather conditions, courier network issues, or peak seasonal demand.
Should a delay occur, tracking information will be updated by the courier where available.
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.
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