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