For one accounts screen beside paper invoices, consider a single adjustable arm that gives you room to change the screen position as window reflections move. A dual arm is more relevant when you regularly view invoices or other references on a second display. Whichever layout you choose, check the monitor’s weight and mounting pattern against the exact arm, and make sure its attachment fits your desk; moving the screen does not replace managing the lighting.
If daylight reflects off your screen, you need to be able to reposition it while keeping a comfortable viewing height and distance. The Health and Safety Executive advises arranging screens and lighting to avoid glare.
If you compare accounts with paper invoices, PDFs or a second display, the choice is partly about keeping those materials accessible without crowding the desk.
A heavy monitor, an uncertain mounting pattern, drawers beneath the desk or limited access to its edge can determine which arm and attachment will fit.
Check the monitor and desk fit before deciding how much movement or document space your working day calls for.
| Concern | What to check | Who this matters to |
|---|---|---|
| Changing window reflections | Check the arm’s height, reach and angle adjustments against the positions available on your desk. The Health and Safety Executive advises arranging the screen and lighting together to avoid glare. | When daylight shifts across my accounts screen, I want to move it without making it awkward to view; around 31% of consumers would put glare-related positioning first. |
| Space for invoices | Decide whether invoices are mainly paper or digital, then check whether one raised screen leaves enough document space or a second screen is needed regularly. | If I compare accounts with paper invoices, I need space to spread them out; for recurring PDF work, I may need two displays visible together. About 31% of consumers would make access to documents their primary concern. |
| Monitor and desk fit | Match the monitor’s weight and VESA mounting pattern to the exact arm; measure desk thickness and the clearance required by its clamp or other attachment. | If my monitor is heavy or the desk edge is obstructed, I need an attachment that fits the actual setup; roughly 25% of consumers would prioritise compatibility. |
| Proportionate setup | List the movements and displays you use routinely before choosing a more complex arm. | When I mostly use one screen and paper invoices, I would rather not add hardware that sees little use; around 13% of consumers would put a proportionate setup first. |
More screen movement may not help if the desk position or lighting still puts a reflection in your line of sight.
Plan where the screen can move and how the lighting can be arranged. The Health and Safety Executive advises considering both screens and lighting when avoiding reflections.
Screen size does not tell you the monitor’s weight, VESA mounting pattern or whether a clamp will fit your desk.
Check the monitor and desk measurements against the exact arm and attachment before ordering.
Movement limits can change within a model’s supported weight range. Ergotron notes reduced vertical travel above 9.1 kg for its LX Desk Monitor Arm.
If you need a substantial height change, check the movement conditions for your monitor’s actual weight, not just the arm’s maximum load.
A second display helps with recurring digital comparisons, but paper invoices may instead need clear desk space beside one screen.
Choose the display layout around how you actually handle invoices, then check the mounting requirements of every screen you intend to use.
Its desk-mount range is relevant when comparing movement and mounting requirements for a specific monitor.
Reflex and Tallo offer different manufacturer-listed screen and mounting configurations to compare against your setup.
The M2 Pro is a single-monitor option to assess where its configuration fits the screen and desk.
Not on its own. An adjustable arm can help you reposition the screen, but the Health and Safety Executive also advises arranging screens and lighting to avoid reflections. Check that the arm can reach a useful position without leaving the screen uncomfortable to view.
Check the monitor’s weight without its stand and its VESA mounting pattern, then measure the desk thickness and the space around the proposed attachment. The exact arm may also require clearance beneath or behind the desk.
A dual arm is worth considering if you routinely keep accounting software and digital invoices visible on separate displays. For mainly paper invoices, a single adjustable arm may give you the desk space you need without a second screen and its mounting requirements.
In the UK, the Health and Safety Executive says display screen equipment regulations apply to workers who use such equipment daily for continuous periods of an hour or more. A workstation assessment should consider the equipment, furniture and working conditions together; fitting a monitor arm addresses only one part of that setup.