Crossbar and Handle
Two Screens, One Movement
Humanscale's M2 Pro and M8 Pro are the current generation of its M-series monitor arms: the same patented Weight-Compensating Spring, so the screen moves with a fingertip and holds position without knobs, with more capacity than the arms they replace and new Quick Release joints that snap together for installation and come apart for reconfiguration. Smart Stop sets a rotation limit, and the cable runs inside the arm.
This is the M8 Pro configured for two screens: a single M8 Pro arm carrying a crossbar with two VESA mounts and a handle, so both monitors lift, lower and swing together in one motion, from the handle, without touching the screens.
Up to 5.7 kg Each
Two 24-Inch Screens, Aligned
Humanscale rates the dual crossbar for flat screens of up to 5.7 kg each, which covers most 24 and 27-inch office monitors without their stands. Because both screens hang from one arm and one post, there is one set of cables in one channel and one clamp on the desk, and the pair stays aligned when it moves.
The handle is the difference from a plain crossbar: it gives you something to hold that is not a screen bezel, so adjusting two monitors becomes a one-hand job.
The Details
Five Things That Make It an M8 Pro Dual
The mount, the spring, the joints, the cable route and the VESA head, with Humanscale's figures beside them.
Two-Piece Clamp Mount
Both screens hang from one arm on one post, so the pair takes a single two-piece clamp mount on the desk. Bolt-through and sliding desk clamps are available for thicker edges and modesty panels.
Spring and Handle
Humanscale's patented Weight-Compensating Spring holds the load, and the handle on the crossbar lifts, lowers and swings both monitors together without touching the screens. Rated for two flat screens of up to 5.7 kg each.
Quick Release Joints
The joints snap together for installation and come apart for reconfiguration, so the arm can be taken apart or reconfigured without tools and without replacing it.
Smart Stop and One Cable Channel
Smart Stop sets an adjustable rotation limit, and because both screens sit on one arm there is one set of cables in one channel rather than two looms across the desk.
Two VESA Mounts on the Crossbar
Two standard 100 × 100 / 75 × 75 mm VESA mounts with tilt, one per screen, so the pair stays aligned when it moves. Curved screens are not rated on the crossbar.
The Numbers
- Screens
- 2 × up to 5.7 kg, flat
- VESA
- 2 × 100 × 100 / 75 × 75 mm
- Arm
- M8 Pro, single post
- Movement
- Both screens together
- Mount
- Clamp (supplied)
- Warranty
- 15 years (Humanscale)
The figures are from Humanscale's weight capacity guide and product pages, and the crops are of the arm as supplied. If you are comparing arms, the capacity table in the guide linked under Specifications is the page to read; the rest of an M-series arm is the same from the M2 Pro up.
M8 Pro Dual, Black or White
This Model
This listing is the M8 Pro dual monitor arm with crossbar and handle (Humanscale code M82BHBC in black, M82BHWC in white) on the standard clamp mount, with two 100 × 100 / 75 × 75 mm VESA mounts on the crossbar. Humanscale rates the crossbar for two flat screens of up to 5.7 kg each; curved screens are not rated on the crossbar.
Humanscale states the M8 Pro is Living Product Certified, meeting the Living Future Institute's criteria for a climate, water and energy positive product. It is supplied from Humanscale Australia's stock with Humanscale's 15-year warranty.
Why We Stock It
We stock Humanscale's M-series because it is the arm that still works in year ten: a spring, not a gas strut, machined joints, and a 15-year warranty that Humanscale actually publishes. It is also the arm that pairs with the Humanscale chairs we sell, which matters when a whole workstation is being specified.
Call 02 9640 0642 with your screen sizes and weights and we will match the arm, the mount and any links you need; we can also show you the M-series alongside the CBS and Thinking Works arms at our Pyrmont showroom, 1/209 Harris Street.
Features & Specifications
Key Features
-One M8 Pro arm with Humanscale Weight-Compensating Spring Technology carrying a two-monitor crossbar with handle
-Two flat screens up to 5.7 kg (12.5 lb) each on the crossbar (Humanscale weight capacity guide; curved screens not rated on the crossbar)
-Handle for lifting, lowering and swinging both screens together
-Quick Release joints; Smart Stop adjustable rotation limit; integrated cable management
-Two standard 100 × 100 / 75 × 75 mm VESA mounts with tilt
-Two-piece clamp mount supplied; bolt-through and sliding desk clamps available
-Black (M82BHBC) or white with polished aluminium (M82BHWC)
-Living Product Certified (Humanscale)
Downloads
Humanscale — Monitor Arm Weight Capacity Guide (M2 Pro, M8 Pro, M/Flex)PDF ↓Humanscale — M/Class Monitor Arm Upgrade ExplainedLink →Dimensions
Screens2 × up to 5.7 kg, flat
VESA2 × 100 × 100 / 75 × 75 mm
ArmM8 Pro, single post
MountClamp (supplied)
Warranty15 years (Humanscale)
Weight capacities are Humanscale's, from its Monitor Arm Weight Capacity Guide (dual crossbar: up to 12.5 lb / 5.7 kg per screen, flat screens only). Humanscale's US store describes the same product as supporting monitors up to 10 kg; we quote the capacity guide, which is the more conservative figure. Chair Dinkum is a Humanscale dealer; the arms are supplied from Humanscale Australia's stock. Warranty terms are on our warranty page.
Frequently Asked Questions
No. On the crossbar both monitors hang from one arm and move together, which keeps them aligned and is what the handle is for. If you want two screens that move separately, the M2 Pro dual has two independent arms, and the M/Flex M2 Pro dual does the same on a system that can be expanded later.
If each weighs 5.7 kg or less without its stand, yes; most 27-inch office monitors are 4 to 6 kg, so check the maker's figure. Curved screens are not rated on the crossbar. Two heavier screens need two arms: the M2 Pro dual, or two M8 Pro singles.
The standard two-piece clamp mount fits the rear or side edge of a desk with a solid top and a clear underside; the desk needs enough overhang for the clamp jaw. Humanscale also makes bolt-through and sliding-desk-clamp mounts (12, 18, 25 and 30 mm) for desks with a modesty panel or a thick edge. If your desk is unusual, send us a photo of the edge and we will tell you which mount you need.
Same arm, same spring, same warranty. Black disappears behind black monitors; white with polished aluminium suits a white or light desk.
Humanscale's published warranty for this arm is 15 years against defects in materials and workmanship. Chair Dinkum is a Humanscale dealer, so a claim comes to us on 02 9640 0642 and we lodge and manage it with Humanscale. Full terms are on our warranty page, and your Australian Consumer Law rights apply in addition.
