HIKMICRO Alpex 4K A50EL LRF Day / Night Rifle Scope and Pixfra S435 Thermal Imaging Monocular Combo

SKU#HM-A50EL+PIX-PFI-S435 HIKMICRO

HIKMICRO Alpex 4K A50EL LRF Day / Night Rifle Scope and Pixfra S435 Thermal Imaging Monocular Combo

Name: HIKMICRO Alpex 4K A50EL LRF Day / Night Rifle Scope and Pixfra S435 Thermal Imaging Monocular Combo
Brand: HIKMICRO
Price: 1189.99 GBP
Availability: OutOfStock

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This HIKMICRO Alpex 4K A50EL LRF and Pixfra Sirius S435 combo delivers a complete day, night, and thermal field package. The Alpex 4K offers ultra-clear digital imaging, an integrated 1000m laser rangefinder, ballistic calculator, adjustable aperture, recoil recording, and a traditional 30mm tube design. The Sirius S435 adds powerful thermal spotting with a 384×288, <18mK sensor, 1,800m detection range, OLED display, AI image calibration, Wi-Fi, video recording, and quick-change 18650 battery system.

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Whilst we aim to dispatch in-stock items within 1 working day, please be aware that during busy periods dispatch of in-stock items may be delayed by up to 2 working days. Authorised UK Retailer

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OBSIDIAN REWARDS

Founded in Devon in 2007, Optics Warehouse has grown to become the UK’s largest specialist optics retailer, offering an unrivalled selection of rifle scopes, thermal imagers, night vision, binoculars, red dots, mounting systems and shooting accessories from the world’s leading brands, all backed by competitive pricing, expert advice and outstanding customer service.

Shaun Ellis, Managing Director Long range target shooting and deer stalking.

Product Information FIND OUT MORE

DESCRIPTION

The HIKMICRO Alpex 4K A50EL LRF Digital Day & Night Rifle Scope and Pixfra Sirius S435 Thermal Imaging Monocular combine to create a highly capable observation and shooting package for serious field use. The Pixfra Sirius S435 gives you fast, reliable thermal detection before the shot, while the HIKMICRO Alpex A50EL provides ultra-clear digital day and night aiming with integrated rangefinding and ballistic calculation. Together, they offer a complete spotting, ranging, targeting, and recording solution for hunters and pest controllers who need performance across changing light and weather conditions.

The HIKMICRO Alpex 4K A50EL LRF is built around a 3840 × 2160 UHD 4K CMOS sensor, delivering exceptional image clarity and target recognition in daylight, low light, and complete darkness when used with IR illumination. Its integrated 1000m laser rangefinder measures distance with ±1m accuracy, while the internal ballistic calculator uses range and ammunition data to calculate the correct aiming point for improved shot placement. The adjustable F1.2–2.5 aperture helps optimise image quality, depth of field, and exposure control across different lighting conditions, making the A50EL a highly versatile digital riflescope for demanding use.

Designed in a traditional 30mm tube format, the Alpex A50EL is easy to mount using standard rings and offers a familiar rifle scope feel. It includes 10 reticle types, 8 reticle colours, 5 zeroing profiles, freeze zeroing, picture-in-picture, recoil-activated recording with audio, hotspot, and 64GB built-in storage. A long-life battery system, fast boot-up, IP67-rated housing, and robust construction make it a dependable optic for extended sessions in the field.

The Pixfra Sirius S435 Thermal Imaging Monocular adds powerful thermal detection to the combo. Featuring a 384×288, 12µm, <18mK thermal sensor, a 35mm f1.0 lens, and a detection range of up to 1,800 metres, it is ideal for scanning ground quickly, identifying heat signatures, and locating quarry before switching to the rifle scope. Its AI-powered image calibration helps maintain a sharp, detailed image as conditions change, while the 50Hz frame rate keeps movement smooth and responsive.

The Sirius S435 is compact, ergonomic, and simple to operate one-handed thanks to its three-button control layout. Its 1920 × 1080 OLED display, 2.41x optical magnification, digital zoom up to 8x, hot spot tracking, six colour palettes, video recording, snapshot capture, Wi-Fi hotspot, and 64GB built-in storage make it a feature-rich thermal spotter for night shooting, wildlife observation, conservation, and general field work. The quick-release 18650 battery system provides up to 6 hours of runtime, while the IP67 waterproof rating and 421g lightweight body make it practical for long sessions outdoors.

This combo is an excellent choice for users who want thermal detection paired with high-definition digital aiming. Use the Pixfra Sirius S435 to scan, locate, and track heat signatures, then move onto the HIKMICRO Alpex 4K A50EL LRF for clear identification, precise ranging, ballistic-assisted aiming, and shot recording. It is a strong all-round package for pest control, foxing, rabbit shooting, airgun use, and general field observation where clarity, speed, and accuracy matter.

Please note: Due to distribution rights and agreements, we can only sell HIKMICRO products to residents of the UK.

SPECS

HIKMICRO Alpex 4K A50EL LRF Digital Day & Night Rifle Scope

Max Resolution: 3840 × 2160
Frame Rate: 50Hz
Lens: 50mm, F1.2 to F2.5 adjustable aperture
Magnification: 3.5x to 28.0x continuous zoom
Field of View: 8.8° × 5.0° / 15.3m × 8.6m at 100m
Display: 1920 × 1080, 0.49-inch OLED
Image Modes: Day and Night
Exit Pupil: 6mm
Eye Relief: 55mm
Diopter Range: -5D to +5D
Minimum Focusing Distance: 10m
Video Recording: On-board video recording
Video Resolution: 1920 × 1080
Snapshot Capture: Yes
Audio Recording: Yes
Recoil-Activated Recording: Yes
Standby Mode: Yes
Storage: Built-in 64GB EMMC
Picture-in-Picture: Yes
Freeze Zeroing: Yes
Zeroing Profiles: 5
Ballistic Calculation: Yes
Laser Rangefinder Safety Class: Class 1
Laser Wavelength: 905nm
Maximum Measuring Range: 1000m
Minimum Measuring Range: 10m
Measurement Accuracy: ±1m
Maximum Recoil Resistance: 1000g / 0.4ms
Hotspot: Yes
Battery Type: Two internal rechargeable lithium batteries and one replaceable rechargeable 18650 external battery
Battery Operating Time: Up to 11 hours continuous running at 25°C with hotspot off
Power Supply: 5V DC / 2A, USB Type-C interface
Mounting: Standard 30mm
Protection Rating: IP67
Operating Temperature: -30°C to +55°C
Dimensions: 439.8mm × 89.2mm × 84.0mm
Weight: 1176g without external battery

Pixfra Sirius S435 Thermal Imaging Monocular

Thermal Sensor: 384 × 288, 12µm, <18mK
Lens: 35mm F1.0
Focus Control: Manual
Close Focus Distance: 3m
Detection Range: Up to 1,800m
Magnification: 2.41x
Digital Zoom: 1x, 2x, 4x, 8x
Frame Rate: 50Hz
Display: 1920 × 1080, 0.49-inch OLED
Colour Palettes: 6, including White Hot, Black Hot, Iron Red, Alarm, Amber, and Emerald
Storage: Built-in 64GB
FFC Calibration: Auto, manual, and external correction
Hot Spot Trace: Yes
Wi-Fi Hotspot: Yes
Video Recording: Yes
Snapshot Capture: Yes
Power Source: Replaceable 18650 battery
Battery Life: Up to 6 hours, depending on temperature
Power Supply: 5V DC / 2A
Port: USB Type-C
Operating Temperature: -30°C to +55°C
Protection Rating: IP67
Dimensions: 194.3mm × 54mm × 65.4mm
Net Weight: 421g

FEATURES

Complete day, night, and thermal combo package designed to give users both advanced thermal spotting and high-definition digital aiming in one setup.
Thermal detection before the shot with the Pixfra Sirius S435, allowing users to scan fields, woodland edges, and open ground quickly to locate heat signatures before moving onto the rifle scope.
High-definition digital aiming with the HIKMICRO Alpex 4K A50EL LRF, giving a sharp, detailed sight picture for confident target identification in daylight, twilight, and darkness when paired with IR illumination.
Integrated laser rangefinder built into the Alpex 4K, allowing users to measure target distance directly through the scope without needing a separate handheld rangefinder.
Internal ballistic calculator that helps calculate the correct aiming point based on distance and ammunition data, making longer or varied-distance shots more precise.
Adjustable aperture system on the Alpex 4K, helping control exposure, improve image clarity, and optimise the view in different lighting conditions.
Multiple viewing modes for adapting the image to different environments, including day and night use.
Customisable reticle options with different reticle styles, colours, and zeroing profiles, allowing users to tailor the scope to different rifles, ammunition, or shooting preferences.
Recoil-activated recording on the Alpex 4K, automatically capturing footage around the moment of the shot for review or sharing.
On-board video and audio recording for saving field footage directly through the scope.
Picture-in-picture mode for maintaining a wider view while also seeing a magnified aiming point.
Freeze zeroing function to make the zeroing process easier and more precise.
Traditional 30mm tube design on the Alpex 4K, making it straightforward to mount and giving it a familiar rifle scope feel.
Fast start-up performance so the optic is ready quickly when an opportunity appears.
Long-life battery system with rechargeable and replaceable battery support for extended use in the field.
Rugged, weather-resistant construction across both devices, making the combo suitable for demanding outdoor conditions.
AI-powered image calibration on the Pixfra Sirius S435, helping maintain a clear and optimised thermal image as conditions change.
Smooth thermal viewing with responsive image performance, making it easier to follow moving heat sources.
Comfortable OLED viewing experience on both devices, designed to provide a crisp, clear image during longer sessions.
One-handed operation on the Pixfra Sirius S435 thanks to its simple, practical control layout.
Hot spot tracking on the thermal monocular to help quickly identify the hottest point in view.
Multiple thermal colour palettes so users can adapt the display to different environments, backgrounds, and personal viewing preferences.
Built-in video recording and snapshot capture on the Pixfra Sirius S435 for saving observations in the field.
Wi-Fi hotspot connectivity for linking the thermal monocular to compatible devices.
Built-in storage on both devices for keeping recorded footage and captured images directly on the unit.
Quick-release battery system on the Pixfra Sirius S435, making battery swaps quick and easy during longer outings.
Compact and lightweight thermal monocular design for comfortable carrying, scanning, and prolonged observation.
Protective lens cover and premium styling on the Pixfra Sirius S435, helping protect the optic while giving it a refined, field-ready finish.
Ideal for pest control, foxing, rabbit shooting, air rifle use, conservation, wildlife observation, and general thermal spotting, offering a versatile setup for users who want detection, identification, rangefinding, aiming, and recording in one package.

WHAT'S IN THE BOX

HIKMICRO Alpex 4K A50EL LRF Digital Day & Night Rifle Scope w/ Ballistics Calculator
Quick start guide
Type-C USB cable
Lint-free cloth
Battery
Battery charger
Bag

Pixfra Sirius S435 Thermal Imaging Monocular

FREQUENTLY ASKED QUESTION(S)

What is included in this combo?
This combo includes the HIKMICRO Alpex 4K A50EL LRF Digital Day & Night Rifle Scope and the Pixfra Sirius S435 Thermal Imaging Monocular, giving you both a high-performance digital riflescope and a dedicated thermal spotter.

What is the main benefit of buying these two products together?
The main benefit is that you can use the Pixfra Sirius S435 to scan and locate heat signatures, then use the HIKMICRO Alpex 4K A50EL LRF to identify, range, aim, and record your shot. It gives you a complete spotting and shooting setup.

Can I use this combo in the daytime and at night?
Yes. The HIKMICRO Alpex 4K A50EL LRF is designed for both day and night use, while the Pixfra Sirius S435 detects heat signatures in complete darkness, poor weather, woodland, and open ground.

Does the HIKMICRO Alpex 4K A50EL have a built-in rangefinder?
Yes. The Alpex 4K A50EL features an integrated laser rangefinder capable of measuring distances up to 1,000 metres with ±1m accuracy.

Does the scope have a ballistic calculator?
Yes. The built-in ballistic calculator uses range and ammunition data to calculate the correct aiming point, helping improve accuracy at different distances.

Can the Pixfra Sirius S435 be used as a riflescope?
No. The Pixfra Sirius S435 is a handheld thermal monocular designed for spotting and observation. It is used to detect heat signatures before moving onto the rifle scope.

How far can the Pixfra Sirius S435 detect?
The Pixfra Sirius S435 has a detection range of up to 1,800 metres, making it ideal for scanning large areas and locating heat sources at distance.

Is this combo suitable for foxing and pest control?
Yes. This setup is well suited to foxing, rabbit control, pest control, and general field observation, as it combines thermal detection with digital day and night aiming.

Can the Alpex 4K A50EL record videos?
Yes. The scope includes on-board video recording, audio recording, snapshot capture, and recoil-activated recording, allowing you to capture key moments in the field.

Can the Pixfra Sirius S435 record videos and take photos?
Yes. The Sirius S435 includes built-in video recording, snapshot capture, and internal storage, so you can save footage and images directly on the device.

What type of mount does the Alpex 4K A50EL use?
The Alpex 4K A50EL uses a standard 30mm tube design, making it compatible with standard 30mm rifle scope mounts.

Is this combo weatherproof?
Yes. Both products have an IP67 protection rating, making them suitable for demanding outdoor use in wet and challenging conditions.

How long does the battery last?
The HIKMICRO Alpex 4K A50EL offers up to 11 hours of continuous running, while the Pixfra Sirius S435 provides up to 6 hours of runtime depending on temperature and use.

Can I use the thermal monocular to identify animals clearly?
The Pixfra Sirius S435 is designed to detect and observe heat signatures. It is excellent for spotting animals, but final identification should always be confirmed carefully before taking any shot.

Is this suitable for air rifles?
Yes. The HIKMICRO Alpex 4K A50EL can be used on air rifles, and the Pixfra Sirius S435 is useful for spotting quarry before setting up the shot.

Is the Alpex 4K A50EL suitable for centrefire rifles?
Yes. The Alpex 4K A50EL is built with strong recoil resistance and is suitable for a wide range of rifle platforms when mounted correctly.

Does the Pixfra Sirius S435 connect to a phone or device?
Yes. The Sirius S435 includes Wi-Fi hotspot connectivity, allowing it to connect to compatible devices.

Can I customise the reticle on the HIKMICRO Alpex 4K A50EL?
Yes. The scope offers multiple reticle types, colours, and zeroing profiles, allowing you to tailor the setup to different rifles, ammunition, or shooting preferences.

Is this combo easy to use in the field?
Yes. The Pixfra Sirius S435 is compact and designed for one-handed use, while the Alpex 4K A50EL has a traditional scope-style layout with practical controls and fast start-up.

Can this product be sold outside the UK?
Due to distribution rights and agreements, HIKMICRO products can only be sold to residents of the UK.

WARRANTY

HIKMICRO

Battery: 1 year warranty
Unit: 3 year warranty
Detector: 10 year warranty

HIKMICRO has a full UK service and technical centre, complete with Hotline: 0203 514 0092 available to assist with any issues.

Pixfra

Pixfra 2 year warranty

DELIVERY & RETURNS

Our aim is to ensure that your order arrives with you as soon as possible and in the safest, most cost-effective means.

Please Note: Shipping charges may be subject to additional surcharges if out of area or over weight restrictions.

Please Note: DPD SHIPMENTS REQUIRE THE CUSTOMER TO SHOW A PIN CODE ON DELIVERY - READ MORE: HERE

COURIERS

We use DPD , RoyalMail, TNT and UPS courier services for all our orders whether dispatching to the UK or International. As soon as your order has been dispatched you will receive an email with your unique tracking number. We are unable to add delivery notes to your order regarding safe spaces or neighbour deliveries. If you require this service it can be arranged directly with the courier once the parcel is in their network.

IN-STORE ITEMS

These are items that we have in-stock and will be sent out for delivery as soon as possible. We aim to dispatch all orders within 1-2 working days, but during busy periods dispatch may be delayed by a day or so. If you would like to purchase the item in person then please call ahead to arrange an appointment: 01803 611 895.

PRE-ORDER ITEMS

These are usually items that are going to be out-of-stock for a number of weeks or are in short supply. By purchasing a Pre-Order Item you are in effect paying a deposit for your goods. As soon as the item is back in stock yours will be dispatched within 24 hours where possible. Please see individual product pages for current back-in-stock dates. In rare occasions, these dates can be changed by the manufacturers so we recommend staying in contact with Optics Warehouse depending on the product lead time.

INTERNATIONAL DELIVERY & TAXES

In addition to the above information If your delivery address is outside of the UK you may be subject to import duties and taxes, which are levied once a shipment reaches your country. Any such additional charges for customs clearance must be borne by you. You should note that customs policies vary widely from country to country. Optics Warehouse advises each customer to contact their local customs office for further information if they are in any way unsure of local duties or liabilities. Cross border shipments are subject to opening and inspection by customs authorities which means some packages may be opened and re-sealed.

NEED HELP?

If you require any further assistance, please call us on 01803 611 895 or email sales@opticswarehouse.co.uk

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A NOTE ABOUT DPD SHIPMENTS:

Please be advised that we have now introduced DPD Pins to all DPD orders from Optics Warehouse.
If your shipment is being sent from Optics Warehouse via DPD you will be sent a Pin Code that must be shown to the courier upon delivery.
The pincode is sent VIA email & TEXT message. A valid email address and mobile number must be provided at checkout. Emails will be sent from "Riviera House 3PL" - if you do not receive this email please check your junk or spam folders.
Please note that if you do not display your pin code to the courier driver upon delivery, you will not be able to have your item and you may need to schedule another delivery date to show a valid pin.
Please view the attached slides HERE for further information!

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