Aerial drone view of Happy Valley residential towers – SkyWorks

Equipment

DJI Matrice 4T: visual, telephoto and thermal in one aircraft

We fly the DJI enterprise Matrice 4T, capturing multiple image types in a single flight.

DJI Matrice 4T thermal drone
ItemSpecification (DJI official)
Wide camera1/1.3″ CMOS, 48MP, 24mm equiv.
Medium tele camera1/1.3″ CMOS, 48MP, 70mm equiv.
Tele camera1/1.5″ CMOS, 48MP, 168mm equiv.
Thermal camera640×512 (1280×1024 super-resolution), 53mm equiv., NETD ≤50mK
Laser rangefinderUp to 1,800 m
Max flight timeApprox. 49 min (no wind, standard propellers)
RTK accuracy1 cm + 1 ppm (H), 1.5 cm + 1 ppm (V), with RTK module
Obstacle sensingOmnidirectional binocular vision + downward 3D infrared sensor

Source: DJI Matrice 4 Series official specifications (accessed 2026-11-03). Actual performance depends on environment and operating conditions. DJI

Applications

Close-range facade detail

Telephoto lenses capture crack and spalling detail from a safe distance.

Thermal comparison

Visual and thermal captured together for side-by-side review.

Survey & modelling

With an RTK module and photogrammetry software for orthomosaics and 3D models.

Sample imagery

Drone performing a close-range facade inspection
Thermal imaging view (illustrative)
Illustrative image
Aerial view of Hong Kong city and harbour

Ready to start your inspection?

Tell us the building address, type and inspection purpose and we will prepare a quotation for your project.