Pixfra Cetus C635 15mK Compact Thermal Imaging Riflescope
The Cetus C635 has been designed to enhance your detection capabilities during long-range hunting, with a 640×512, 12µm thermal sensor providing a generous detection range of up to 2300m.
Exceptional <15mK NETD thermal sensitivity allows you to continue to hunt with confidence, regardless of environmental conditions; working unimpeded by adverse weather, including heavy rain and fog. This thermal sensitivity will ensure an observed animal’s important anatomical features are well defined and presented onto the Cetus’s 1600×1200 OLED display with exceptional clarity for clarity in any condition.
PIPS 3.0 Image Enhancement
Pixfra’s proprietary, AI-driven PIPS 3.0 image enhancement algorithms enhance thermal image quality even further, providing pin-sharp clarity even at high zoom levels and in varying light conditions, maintaining <1MOA precision and bridging the gap between low-end cost and high-end performance. PIPS 3.0 helps the Cetus achieve superior thermal detail during long-range thermal detection, emboldening the modern hunter with precise target identification and enhanced accuracy.
Minimalist Design
A compact and lightweight bodyshell ensures the Cetus is less cumbersome than traditional riflescopes, allowing for efficient manoeuvrability and more seamless operation in the field.
Its minimalist design focuses on user comfort and convenience, with a multipurpose spin wheel enabling seamless menu navigation and an easy-to-reach button array along the top providing access to all of the most commonly used digital functions.
The Pixfra Cetus mounts to your rifle via the included picatinny rail mount (not shown in images).
Built to Endure
Although it may be nice and compact, the Cetus features a full-body magnesium alloy construction and IP67 protection, remaining rugged and durable during extended use — withstanding adverse conditions, along with the everyday knocks and bumps you would expect during prolonged hunts.
Shock resistance rating of 1000g/0.4ms, the Cetus has been optimised for use with higher calibre rounds (.375 H&H, 12 Gauge, etc.), easily handling heavy recoil.
Immersive Display
Comfortable viewing is achieved through the Cetus’s powerful display and curved interface — lending a more traditional and immersive visual experience, with finer image details reducing eye fatigue over long periods of observation.
Performance Beyond Its Compact Footprint
Using a single, replaceable 18650 battery, the Cetus C635 will keep your observations going for up to 4.5 hours on a single charge, so you can hunt through the day and into the night. The battery can be easily replaced by another standard 18650 battery, with a one-press quick-release battery cover enabling seamless battery replacement, even in total darkness.
Easy Zeroing with Customisable Zeroing Profiles
For ease of use when setting up your riflescope, the Cetus series features a new customisable zeroing system, with an enhanced user interface that supports adding, deleting, and renaming zeroing profiles, along with the management of zeroing distance groups. Use the Pixfra app to effortlessly zero your riflescope.
Recoil Activated Video Recording
Built-in Recoil Activated Recording (RAR) ensures every memorable moment during your hunt is captured on film, with audio — so you can watch all your stand-out shots and even share them with friends on social media. Images and videos captured on the Cetus can be viewed through the scope via the local image/video gallery.
Specification
| Thermal Sensor | 640×512, 12 µm, <15 mK NETD |
| Spectral Range | 8 µm – 14 µm |
| Objective Lens | 35 mm f1.0 |
| FOV (°) | H: 12.5 V: 10.0 |
| FOV (m @ 100 m) | H: 21.9 V: 17.6 |
| Focus Control | Manual |
| Close Focus Distance | 3 m (9.84 ft) |
| Detection Range | 2300 m |
| Base Magnification | 2.5x |
| Digital Zoom | 1x – 8x |
| Display | 1600×1200 0.32″ OLED |
| Colour Palettes | 6: White Hot Black Hot Iron Red Alarm Emerald Amber |
| Eye Relief | 50mm |
| Dipotre | -5 D to 5 D |
| Video Recorder | Yes, recoil activated with audio |
| Snapshot | Yes |
| Wi-Fi Hotspot | Yes |
| Hot Spot Track | Yes |
| FFC Calibration | Auto Manual Semi-auto |
| DPC (Defective Pixel Correction) | Yes |
| MIC | Yes |
| Picture in Picture (PIP) | Yes |
| Local Album | Yes |
| Storage | Built-in 64 GB |
| PIPS 3.0 | Yes |
| Reticle | Multiple patterns and colours |
| Zeroing Profile(s) | 5 |
| Battery Type | Replaceable 18650 Lithium battery |
| Battery Operating Time (Up To) | 4.5 hours (Wi-Fi off, depending on temperature) |
| Power Supply | 5 VDC |
| USB | USB Type-C |
| Operating Temperatures | –30 to +55 °C –22 to +131 °F |
| Operating Humidity | ≤95% |
| Protection Grade | IP67 |
| Max. Recoil | 1,000 g/0.4 ms |
| Dimensions | 201.1 mm × 81.5 mm × 66.8 mm 7.92″ × 3.21″ × 2.63″ |
| Weight | 530g |
Warranty
This comes with a 3 year warranty from Pixfra.
We aim to dispatch all orders placed by 3pm on the same working day for 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.
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).
We aim to deliver within the estimated timeframe, but sometimes delays can occur due to factors outside our control (e.g., courier issues or extreme weather). If your delivery is delayed, you’ll receive updated tracking information.
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.
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.
United Kingdom
| 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 |
Please note that delivery to Channel Islands, Isle of Man, Northern Ireland and Scottish Highlands & Islands may take an additional one to two working days compared to the estimated timescales above.
Republic of Ireland
| Delivery Service | Timescale (estimated) | Price |
| European Tracked | Two to five working days | £10.95 |
European & International
| Delivery Service | Timescale (estimated) | Price |
| European Tracked | Five to seven working days | £13.95 |
| International Tracked | Five to fiteen working days | £15.95 |
VAT & Customs
Orders placed with delivery to European and International destinations are charged at 0% VAT. Prices displayed on our website automatically adjust based on your location (for example, if you’re shopping from Ireland, prices on our website will display at 0% VAT, which is the price you will pay at checkout).
Please note that customs duties, import taxes, and any applicable handling or brokerage fees are not included in the item or delivery price. These charges are set by the destination country and are the responsibility of the recipient.
If applicable, the courier or local customs authority will contact you directly to collect payment before delivery. We have no control over these charges and are unable to advise on their cost.
Pricing on our website is displayed based on your detected location (such as IP address). If you are using a VPN or location-masking service, prices shown may not reflect the final VAT rate. The correct VAT and total price will always be confirmed at checkout based on your delivery address.
Important Information
Please check that the item is marked as “in stock” if you are expecting your order to be dispatched on the same working day it is placed (orders must be placed by 3 pm, Monday to Friday). “Pre-order” and “custom-made to order” items have a longer dispatch timeframe, which is clearly stated on the product page.
For products marked “dispatches in x working days,” the dispatch timeframe starts from the next working day after your order is placed; for example, an order placed by 3 pm on Monday would be expected to be dispatched by Thursday.
If your order contains a mix of in-stock items and items that are on back-order or pre-order, we will usually hold your order until all items are ready to dispatch.
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
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.