Originally modelled in 3ds max 2018. Final images rendered with Corona 1.6.(last image - VRay 3.6)

files:
1) barometer_max2018 with Corona 1.6
materials and maps: Multi/Sub-Object; CoronaMtl; CoronaMix; Mix; CoronaNormal; Falloff; Output.

2) barometer_max2015 with VRay 3.6
materials and maps: Multi/Sub-Object; Composite; VRayMtl; Mix; VRayNormalMap; Falloff.

3) barometer.FBX and barometer.OBJ - only mesh, no materials, subdivision level 0.

Model:
Units used: Millimeters.
2 Object with individually non-overlapping unwrapped UV-space: case, measurers.
modify:TurboSmooth (On by default in 3ds max files).
dimensions: 217mm x 77mm x 557mm

textures:
Normal map for case - jpg 4096x4096.
Alpha map for measurers - jpg 2048x2048.
Scale texture for measurers - jpg 2048x2048.
Ambient occlusion map for case - png 4096x4096.
Scratches, fiber and rust map - png 2048x2048.
Environment map - hdr 4000x2000.