SENKO V-PRO · POSITIONING · WEB PAGE + MAGAZINE AD · 2026
WORK № 05V-PRO Product Page and Ad
A detector is only safe if it gets carried
The V-PRO couldn't out-brand Honeywell, and on specifications it could lose to other makers. It could beat every comparable detector on weight — 360 g against a typical 700 g. I built its product page and a magazine ad on that one claim.

- DATE
- JAN 2026
- CONTEXT
- B2B gas-detection distributor, one-person product team; a product page for the company website and a print ad
- ROLE
- Positioning · Copy · Page structure · Visual design · HTML / CSS · Print-ready PDF
- STACK
- HTML / CSS for both; the ad was built in HTML and exported from Chrome to a print PDF with bleed
THE 45-SECOND READ
On paper, the V-PRO is one more handheld PID (VOC) detector. Against Honeywell and other established names it loses on brand credibility, and on specifications it could lose to other makers. A feature list would put it in a comparison it can't win.
DECISIONFind the one thing it beats every comparable detector at — weight — and build everything on it. Then tie the weight to a real problem — inspectors leave heavy detectors behind — so being light means being safe.
PRODUCTA long-scroll product page that argues one claim from top to bottom, and a magazine ad that carries the same claim to print.
STATUSThe page was live on the company website; it was taken down after I left and no one was maintaining it. The ad ran in an industrial-safety magazine.
On brand, Honeywell wins. On specs, someone else might. The V-PRO needed a way in — and the one comparison it won against every rival was weight.
THE POSITIONING PROBLEM
THE PRACTICE / 01
Pick the fight you can win
Weight became the headline instead of one feature in a list. But a number only sells if it solves something, so the page and the ad both name the problem first: older PID detectors weigh around 700 g and don’t last a shift, so inspectors leave them behind. “It’s the tool, not the people.”
THE CLAIM, IN NUMBERS
THE PRACTICE / 02
One argument, top to bottom
01Open on the claim
"360 g" is the headline, with three numbers directly underneath — a 30-hour battery, 4 measurement ranges, a 2-year warranty. The product name is a small kicker; the claim comes first.
02Name the problem
"By the time you can smell it, it's too late." Older PID detectors weigh around 700 g and don't last a shift, so inspectors leave them behind. The page says it plainly: the tool, not the people. That turns being light into a safety argument.
03Make the number felt
"Lighter than a large latte, yet it covers a whole shift." 360 g is abstract; a coffee is something everyone has held. The balance scale shows the comparison, and four tags sum up the case — 360 g, 30 hours, app trend charts, one-tap export.
04Choose by the job
Four models instead of one compromise — "選對量程,才有準度" (choose the right range to get accuracy). Each card lists named jobs, from general plant rounds at 0–4,000 ppm to cleanroom trace monitoring at 0–3,000 ppb.
05Compare with the category
A side-by-side with common handheld PIDs — the category, not a named rival — on weight, battery, logging interval, app and range strategy.
06Specs last, then the ask
The full spec sheet comes after the argument, as proof rather than as the pitch. The page closes on a free on-site demo and help choosing a model.
SCROLL IT YOURSELF
The same page at phone width
The portfolio copy keeps the page’s original layout and copy, with the product photos it used. On a phone the sections reflow into a single column; the order of the argument stays the same.
THE PRACTICE / 03
The same claim, in print

- 01The headline names the outcome
"巡檢帶得動,才叫安全。" — it's only safe if inspectors will carry it.
- 02The problem, in one line
Nearly the same sentence as the web page — heavy detectors with short batteries get left behind; it's the tool, not the people.
- 03The claim, in orange
360 g, with an asterisk — the weight varies by model and configuration.
- 04The comparison, sourced
"Competitor average 700 g or more" carries a dagger — compiled from the public specs of common pumped PID detectors.
- 05Four ranges in two rows
The page's four ranges, in two rows.
- 06Certifications as plain badges
IECEx, ATEX, IP67, intrinsically safe, made in Korea.
- 07Both footnotes, in print
Every comparative number in the ad is qualified where it appears.
- 08A QR code for the specs
- 09A QR code for the next step
LINE, for a catalog, a quote or a trial — the ad ends in an action, not a slogan.
THE PRACTICE / 04
Print from the same tools
The ad was built in HTML and CSS, like the product page, and exported from Chrome to a print-ready PDF with bleed. One toolset for the pages and the print meant a one-person team could produce both.
READING NOTE / OPEN
The page is no longer online — this copy is.
The portfolio copy keeps the original layout and copy; the product photos are the ones the page used.