HIKMICRO STELLAR 4.0 SQ50L Thermal Riflescope

The STELLAR 4.0 SQ50L pairs a 640 × 512, 12 µm thermal detector with a 50 mm F1.0 objective lens. Thermal sensitivity below 12 mK helps reveal subtle temperature differences, allowing animals and surrounding terrain to stand out more clearly. Its quoted detection range of up to 2,600 metres provides substantial reach when observing open ground.

A 1.03-inch AMOLED display with 2560 × 2560 resolution presents the thermal image, while 3.5–28× magnification allows closer inspection of distant detail. Side-mounted focusing provides convenient adjustment, and an 8 mm exit pupil, 55 mm eye relief and adjustable dioptre help create a comfortable viewing position.

The scope features HIKMICRO Image Pro 4.0, Zoom Pro, Sync Pro and the HIKMICRO Shutterless Image System (HSIS). Six colour palettes, adjustable brightness and contrast, and warm or cool image tones let you tailor the display to your preferences and the conditions. Picture-in-Picture provides a magnified viewing area while retaining the wider scene.

The integrated laser rangefinder measures distances from 10 to 1,200 metres, with a stated accuracy of ±1 metre. Built-in ballistic calculation, five zeroing profiles and freeze zeroing provide further flexibility when configuring the scope for your equipment.

On-board video and audio recording allow you to document time in the field, while recoil-activated recording captures footage automatically around a shot. Photographs and recordings are saved to 64 GB of internal storage, with a local album for reviewing files and hotspot connectivity for wireless use.

Two internal rechargeable lithium batteries work alongside a replaceable, rechargeable 18650 battery to provide a stated 9.5 hours of continuous operation at 25°C with the rangefinder switched on. USB-C power supports QC3.0 charging for the internal batteries, while the external 18650 battery is charged separately using a battery charger.

With IP67 protection, a −30°C to +55°C operating range and a stated maximum recoil resistance of 6,000 J, the STELLAR 4.0 SQ50L is designed for demanding field conditions. Choose the SQ50L for mounting with standard 30 mm rings, or the SQ50LR for a rail-mounted configuration.

• Thermal sensor: VOx uncooled focal plane array

• Sensor resolution: 640 × 512

• Pixel pitch: 12 µm

• Thermal sensitivity (NETD): <12 mK

• Frame rate: 50 Hz

• Objective lens: 50 mm F1.0

• Magnification: 3.5–28×

• Detection range: Up to 2,600 m

• Minimum focusing distance: 10 m

• Focus adjustment: Side focus ring

• Field of view: 8.8° × 7.0° / 15.2 × 12.2 m at 100 m

• Display: 1.03-inch AMOLED, 2560 × 2560

• Eye relief: 55 mm

• Exit pupil: 8 mm

• Dioptre adjustment: −5 to +5 D

• Colour palettes: Black Hot, White Hot, Red Hot, Fusion, Red Monochrome and Green Monochrome

• Image adjustment: Brightness, contrast and warm/cool tones

• Image processing: Image Pro 4.0, Zoom Pro and Sync Pro

• Shutterless imaging: HIKMICRO HSIS

• Picture-in-Picture: Yes

• Hot Track: Yes

• Laser rangefinder range: 10–1,200 m

• Rangefinder accuracy: ±1 m

• Laser classification: Class 1, 905 nm

• Ballistic calculation: Yes

• Zeroing profiles: Five

• Freeze zeroing: Yes

• Recording: Video, audio, photographs and recoil-activated recording

• Internal storage: 64 GB EMMC

• Hotspot connectivity: Yes

• Standby mode: Yes

• Battery configuration: Two internal rechargeable lithium batteries and one replaceable, rechargeable 18650 battery

• Operating time: 9.5 hours at 25°C with LRF on

• External power: USB-C, 5 V DC / 2 A; QC3.0 supported

• Charging: USB-C charges internal batteries only; external battery requires a separate charger

• Mounting — SQ50L: Standard 30 mm rings

• Mounting — SQ50LR: Rail mounting

• Maximum recoil resistance: 6,000 J

• Protection rating: IP67

• Operating temperature: −30°C to +55°C

• Dimensions — both versions: 439.6 × 82.9 × 74.3 mm

• Weight — SQ50L: 1,008 g including external battery

• Weight — SQ50LR: 1,073 g including external battery