Designing a complete interrogator product family for a fiber sensing manufacturer

// Brief

A growing interrogator lineup needed one coherent design language

The client had developed working DTS, DAS, and FBG/FP-cavity interrogator electronics across multiple product lines, but each unit had been housed and styled independently as it was developed. M&Kei was brought in to unify the lineup under a single, recognisable design system — and to take the chassis design, panel layout, and supporting brand materials from concept through to manufacturable detail.

// 01 — Design language

Establishing one visual identity across three product lines

Before any single enclosure was finalised, M&Kei defined the design positioning that would carry across the DAS, DTS, and FP-cavity interrogator ranges: a high-reliability industrial chassis aesthetic suited to rack-mounted, machine-room, and unattended field-monitoring environments — built on clean rectilinear volumes, minimal ornamentation, and proportions that read as precision instrumentation rather than generic IT hardware.

01Design positioning brief — geometric principles, anti-interference visual cues, and the shared proportion system applied across the DAS / DTS / PT interrogator ranges.

// 02 — Exploration to resolution

From rough type studies to a validated final form

Each product type went through a structured design pass: line-art exploration to settle proportion and panel composition, a colour and material validation stage, then a fully rendered final form — repeated in parallel across three product types so the family stayed visually consistent end to end.

02Line-art stage — three product type variants developed in parallel, establishing chassis proportion and panel composition before any colour or material decisions.

03Colour validation — accent treatments tested against the resolved chassis form, including a spectrum-light motif explored for the optical sensing product line.

04Final render — resolved colour and material treatment carried through to presentation-quality visualisation for internal sign-off.

// 03 — Mechanical detail

Panel layout and dimensioned engineering detail

Visual design had to resolve into a chassis that a contract manufacturer could actually build. That meant working through connector placement, ventilation, and indicator layout panel-by-panel, then locking every opening and clearance to a dimensioned drawing.

// 04 — Product family

A consistent family, not a one-off enclosure

The result is a visually unified hardware lineup spanning rack-mount and compact standalone form factors — sharing the same design DNA across DTS, DAS, and PT interrogator units, so new SKUs can be added to the range without breaking the visual system.

07Full product family render — rack-mount and standalone units sharing one design language across the DTS, DAS, and PT interrogator ranges.

// 05 — Marketing collateral

Carrying the same design language into brand-facing materials

Beyond the hardware itself, M&Kei produced bilingual product posters that carried the visual language of the chassis design — the same proportion, lighting, and colour treatment — into marketing-ready collateral for the client's launch materials.