CorrCard™Rack Corrosion Indicator
ANSI/ISA-71.04 · Level G1 · Copper

See corrosion at a glance, on every rack.

A peel-and-stick copper corrosion indicator beside a sealed reference of the same copper. At install they look identical — and one look tells you whether the air around that rack is still clean. No instrument, no login, no guesswork. When your copper darkens away from the reference, peel it off and send it in for a certified lab read.

Order a 10-pack See how it reads

$87 per pack of 10 · enough for a full row of racks

No power or network Serial-tracked strips Lab analysis any time
Live read · drag to age the copper Sealed reference
CorrCard™
Rack Corrosion Indicator
ANSI/ISA-71.04 • G1
CopperReference
135242
If copper darkens beyond reference, return for analysis.
Install Date:
Location:
technologycare.com
Design Reg. CH 148842
Matches reference — within G1
~40 Å Cu

On the card the left copper reacts while the sealed reference on the right stays bright. Drag to watch it darken. Field results vary by site.

<300 Å
G1 copper limit / 30 days
$1,000s
Lost per minute of downtime
1 / rack
Coverage humidity demands
0
Cables, power or software
The blind spot

Humidity drives corrosion — and it isn't the same at every rack.

Relative humidity is the single biggest lever on how fast metal corrodes, which is why ASHRAE ties the whole air-quality spec to it. But RH and airflow are never uniform across a room: a rack near a CRAC return, an outside wall, a door, or a hot/cold-aisle boundary can sit in a very different micro-climate than the sensor on the far wall.

That means one room-level probe can read "fine" while a corner cabinet is quietly tarnishing. Corrosion is a leading silent cause of hardware failure — and the first symptom is usually an outage, not a warning.

  • One indicator per rack catches the hotspot, not just the average.
  • Cheap enough to deploy facility-wide, then forget about.
  • A walk-through replaces a spreadsheet of sensor readings.
One room, mapped per rack RH not uniform
Within reference Watch Past reference

A single wall sensor would average all of this away. Per-rack indicators surface the two cabinets that actually need attention.

How it works

Stick it on. Glance at it. Send it in if it darkens.

The whole method is built so anyone walking the floor can read it in a second — no training, no device.

1

Peel & place

Stick one indicator on each rack. Write the install date and location on the label, or scan the serial barcode into your CMMS. Done in seconds.

2

Glance to compare

The exposed copper sits beside a sealed strip of the same copper. At install they're identical — and as long as your copper still matches that bright reference, the air is within G1. No interpretation needed.

3

Return for lab analysis

If your copper darkens away from the reference — or whenever you want documented proof — peel it off and send it in. You get a quantified ANSI/ISA-71.04 report tied to that serial.

Rack Corrosion Indicator label showing the exposed copper element beside a sealed copper reference, with serial barcode and install date and location fields.
Copper  |  Reference, side by side
The visual reference

A sealed reference that makes the read obvious.

The hard part of corrosion coupons has always been knowing what "too dark" looks like. We put the answer right on the label: a sealed strip of the same copper, kept beside the live element. At install the two are identical. The reference stays bright while only your exposed copper reacts — so the moment they stop matching, it's time to act.

  • Two strips, never a memory

    Live copper and sealed reference share one label under the same light, so you're matching two strips side by side — never a colour you half-remember.

  • Serial-tracked & logged

    Each strip carries a unique serial plus install-date and location fields, so every read is traceable to a specific rack.

  • Lab-ready any time

    The visual read is the first line. The same strip returns for a certified, numbers-on-paper analysis whenever you need it.

From glance to proof

When you need numbers, the strip becomes the evidence.

An at-a-glance read tells you whether to worry. The lab read tells you how much, of what, and how fast. Mail any indicator back — whether it tripped the reference or you just want a baseline — and it's processed against ANSI/ISA-71.04 severity levels.

  • Quantified copper film thickness in ångströms, mapped to G1–GX severity.
  • Tied to the strip's serial, install date and rack location.
  • Documentation for audits, SLAs, warranty disputes and insurers.
  • Return on your schedule — there's no fixed analysis window.
Lab Analysis Report SN 135219
ANSI/ISA-71.04 · Copper reactivity
Beyond G1 Action recommended
Copper film growth (30 d)412 Å
Severity levelG2 · Moderate
Rack / locationRow C · Cab 14
Install date2026-03-04

Sample report. G1 (mild) is met when copper growth stays under 300 Å over 30 days; values above indicate a more aggressive environment.

Specification

Built to the standard, sized for a sticker.

Standard
ANSI/ISA-71.04 · Level G1
Sensing element
High-purity copper
Reference
Sealed copper, on-label
Traceability
Unique serial + barcode
Logging
Install date & location fields
Mounting
Adhesive — peel & stick
Power / network
None required
Lab analysis
Return any time
Design registration
CH 148842
Pricing

One pack covers a row. Roll it out by the room.

No subscription, no gateway hardware. Buy the strips, stick them on, and walk the floor.

CorrCard™ · Rack Corrosion Indicator
$87/ pack
Pack of 10 CorrCards · just $8.70 per rack
  • 10 serial-tracked, peel-and-stick CorrCard indicators
  • Printed on-label G1 reference for instant visual comparison
  • Install-date and location fields on every strip
  • Certified lab analysis available any time on the same strip
  • No power, cabling, network or software
Order a 10-pack — $87

Prices in USD, excl. shipping and any applicable duties/taxes.

Outfitting a whole facility? Multi-pack and rollout pricing is available for full rooms and multi-site estates — note your rack count in the order form and we'll come back with a quote.

FAQ

Good questions, straight answers.

Look at the two strips side by side. They start identical — both bright copper — because the reference is a sealed strip that never reacts. While your exposed copper still matches the reference, the rack's air is within spec. Once it's visibly darker than the reference, return that strip for a lab read.

Because relative humidity and airflow vary across a room — near returns, walls, doors and aisle boundaries — and humidity is the main driver of corrosion rate. A room-average reading can mask a single cabinet sitting in an aggressive micro-climate. At under $9 a rack, per-rack coverage is the only way to see the hotspots.

No. It's a passive adhesive indicator. There's nothing to wire, charge, configure or patch — which is exactly why you can deploy hundreds of them without a project.

It quantifies copper film growth in ångströms over the exposure period and maps it to an ANSI/ISA-71.04 severity level (G1 mild, G2 moderate, and beyond). The report is tied to the strip's serial, install date and location, so it stands up for audits, SLAs, warranty and insurance.

No fixed window. Send any indicator for analysis whenever it darkens or whenever you want documented proof. Many teams pull a baseline strip early and keep the rest as a standing visual line of defence.

G1 ("mild") is the cleanest severity class in ANSI/ISA-71.04 — the environment most IT and datacom equipment is built to operate in reliably. In copper terms it corresponds to film growth under roughly 300 Å over 30 days, which is what the lab measures when you return a strip.

Order

Put a CorrCard on every rack.

Tell us how many racks you're covering and where to ship. We'll confirm your order and, for larger estates, send rollout pricing.

  • Pack of 10 CorrCards — $87 USD
  • Serial-tracked, peel-and-stick
  • Lab analysis available any time
  • Shipped worldwide
Please use a company email so we can confirm shipping and quote facility-wide rollouts accurately.

Request your order

No payment is taken here — we confirm details and shipping by email first.

CorrCard™ Rack Corrosion Indicator Pack of 10 · $87
Estimated total $87 · 10 racks
Required.
Required.
Please use a company email address.
Required.
Required.

We'll reply by email to confirm shipping and total before anything is charged.