We buy surplus instruments
Retired analyzers. CEMS spares. A shelf of parts nobody has touched in nine years. Working, dead or parts‑only — send a photo of the tag.
Gast 0523‑1010 rotary vane pump
recovered, bench‑tested, sold
Most of it was never broken
A CEMS rack gets replaced because a permit changed, not because the analyzers stopped working.
A lab consolidates and a good bench goes into storage. A tech retires and thirty years of spares sit until someone needs the room. Eventually it is scrapped for weight — while somewhere else a plant hunts for a detector board the manufacturer discontinued eight years ago.
Thirty-five years with this equipment is why we can price a unit from a photo of its data tag, and why we will gladly take one that does not power up. We test it, repair what is worth repairing, and put it back into a plant that needs it. The rest is parted out.
What we buy
Six categoriesNot a wish list. These are the nameplates that actually come through — and the parts inside them are most of the business.
Gas Analyzers & CEMS
Thermo Environmental / TECO · Teledyne API 200 & 300 series · CAI 600 series NOx and tri‑gas · Servomex 1440 paramagnetic · Siemens · Fuji
Analyzer Spares & Boards
Scrubber assemblies · detector and preamp boards · IR source assemblies · critical flow orifices · sintered filters · o‑ring and rebuild kits · data plugs
Sample & Vacuum Pumps
Air Dimensions Dia‑Vac · Gast rotary vane and diaphragm · Thomas · KNF · Parker miniature diaphragm · Dekker · rebuild kits and motors
Flow, Pressure & Temperature
Dwyer flowmeters and Minihelic gauges · Setra differential transducers · McMillan flow sensors · Omega thermocouple hardware · panel meters · controllers
Gas Handling & Conditioning
Perma Pure Nafion dryers · Baldwin heated probes and lines · Scott Specialty Gases regulators · CGA fittings · sample conditioning and coolers · pressure switches
Valves, Fittings & Consumables
Needle and metering valves · Parker solenoid valves · CGA and NPT fittings · Whatman QMA quartz microfiber · Millipore glass fiber · sealed shelf stock
It goes to a real warehouse
Not a driveway and not a storage unit. Racked, labelled, tested and listed.
Everything comes back here to be identified, bench-tested and photographed. That is why we can price a lot from photos — and why you can hand us an unsorted pallet without working out what is on it first.
All four are worth money
Condition acceptedThe state it is in changes the number. It does not change whether we want it.
Working
& calibrated
Highest value, and the fastest to redeploy.
Untested
or unknown
Most of what we buy. We do the testing, so you do not have to.
Not
working
A failed detector does not devalue the pump, the boards, the manifold or the cabinet.
Parts-only
or incomplete
Missing a display, a door or a manual is not a problem. Send it anyway.
Scrap value is weight. A retired analyzer is usually worth many times that — the detector, the pump, the boards and the spares in the cabinet with it. Checking costs one email.
Buying, not selling?
The recovered equipment is listed through Q&W Instruments: 858 items, 99.1% positive.
Analyzer spares, sample pumps, regulators, boards, and the discontinued components the OEM will not quote at any price. Everything runs through eBay, so tracked shipping and buyer protection are handled — and every listing states plainly what was tested and what was not.
Before you send anything
Do you buy equipment that does not work?
Yes — non-working, untested and parts-only equipment is a large share of what we buy. A dead analyzer still holds a good detector, a pump, a board set and a bench of spares other plants need.
What information do you need to make an offer?
A photo of the nameplate or data tag — it carries the manufacturer, model and serial. Beyond that: roughly how many items, whether they run, and where they are. An export from your asset system works too.
Do you buy loose parts, or only whole instruments?
Parts are most of our business: scrubber assemblies, detector and preamp boards, IR sources, critical orifices, sintered filters, o-ring kits, sample pumps. A shelf of unopened spares is often worth more than the instrument it came out of.
Do I have to pack and ship it?
No. Beyond a small box we arrange the freight, and we agree how a bigger lot comes out before anything moves. Plant cleanouts are handled entirely on our side.
What happens to the equipment after you buy it?
It is tested, cleaned and repaired where that makes sense, then listed through Q&W Instruments, our sales channel. What cannot be recovered is parted out, so the good components stay in service instead of going to scrap.
Giving industrial equipment a second life.
Recover / Repurpose / Redeploy