Case Study: Oxygen Sensor Unit Supply for a police fleet in Southern Africa
Source:Case /
Time:2026-09-18
Oxygen Sensor Unit for A police fleet in Southern Africa
A police fleet came to us with a oxygen sensor unit programme for Southern Africa. The brief was ordinary and unforgiving at the same time: a fixed launch window, a landed cost that had to survive freight and duty, and a part that had to match an existing sample. This case records what was specified, what went wrong in sampling and how the bulk order landed.
The starting point
- A supplier who changed material without saying so
- Lead time that slipped twice before bulk started
- A specification nobody had written down

What was specified
| Part | Oxygen Sensor Unit |
|---|---|
| Client | A police fleet |
| Market | Southern Africa |
| Volume | 2,000 pieces across 4 specifications |
| Base material | Reinforced Nylon |
| Sampling rounds | 4 |
| Delivery window | 8 weeks from PO to ex-factory |
| Compliance | ISO/TS 16949 |
How it was resolved
- The specification was rebuilt around Reinforced Nylon and the tolerance locked before bulk.
- A pre-production sample was approved and kept as the golden reference.
- Production ran with in-line inspection and a mid-run photo report.
- Cartons were packed to the client's own barcode and ratio specification.
- Documentation shipped with the goods instead of after them.

Result
- 2,000 pieces delivered inside the 8-week window.
- Unit cost held within 4.5% of the original quotation.
- Inspection-related rejection stayed under 1.0%.
- The specification is on file, so reorders reproduce the approved sample.
What we would repeat
Approve a pre-production sample made from the actual bulk material. Substitute material behaves differently in service.
Planning something similar?
Share a sample or a drawing and we will quote against a written specification, not against a photograph.



