Tempilabel® Series 21
300°F / 149°C — Single-Level Label
Single-level temperature indicating label 300°F (149°C). Pack of 210 labels. Irreversible colour change when threshold is reached. Ideal for QC, motor, pump and bearing monitoring.
* Images are for illustration purposes
Tempilabel® Series 21 — Part #26270
Single-Level Temperature Indicating Label — Irreversible, Pack of 210 labels
Product Description
Tempilabel® Series 21 300°F — Single-Level, Pack of 210 labels
Single-level self-adhesive temperature indicator applied to equipment surfaces for continuous threshold monitoring. When the indicator changes colour, the surface has exceeded 300°F (149°C) at least once.
Part #26270 is a Series 21 label rated at 300°F (149°C). Packed in pack of 210 labels. Irreversible — the colour change is permanent, providing clear pass/fail evidence even after the surface has cooled.
Technical Knowledge
Why choose this label?
🏷️ Series 21 — Use when:
Monitoring a single precise temperature threshold
Series 21 is ideal when you only need to know: 'did the temperature ever exceed 300°F?' — no trend data required. Examples: confirming PWHT soak temperature was reached, verifying equipment did not exceed warranty temperature limits, or pass/fail QC on a production line against a fixed threshold. The roll of 1000 labels is especially cost-effective for high-volume production applications.
🔒 Irreversible — Objective evidence
Temperature history that cannot be falsified
Once the label changes colour, there is no way to reset it to its original state. This is a key feature for QA/QC and equipment warranty purposes — clear proof that the equipment once reached 300°F, even if the surface has since cooled at the time of inspection.
Features
Key Advantages
- Single-level indicator: 300°F (149°C) — precise threshold monitoring
- Packaged in pack of 210 labels — production and maintenance ready
- Strong self-adhesive — adheres firmly to metal, plastic, paint and curved surfaces
- Irreversible — permanently records overtemperature history even after cooling
- Resistant to oil, water and steam — suitable for harsh industrial environments
- Instant installation, no tools required — peel and stick
- Accuracy ±2%°F — sufficient to detect abnormal overheating
- Manufactured in USA — C/O Form, C/Q, full VAT invoice
Part Numbers — Series 21
Adjacent Temperature Levels
| Part # | °F | °C | Packaging | Application |
|---|---|---|---|---|
| 26291 | 280°F | 138°C | Roll of 1000 | QC production, motor, pump monitoring |
| 26269 | 290°F | 143°C | Pack of 210 | QC production, motor, pump monitoring |
| 26292 | 290°F | 143°C | Roll of 1000 | QC production, motor, pump monitoring |
| 26270 ★ | 300°F | 149°C | Pack of 210 labels | This page |
| 26293 | 300°F | 149°C | Roll of 1000 | QC production, motor, pump monitoring |
| 26271 | 400°F | 204°C | Pack of 210 | PWHT verification and heat treatment |
| 26294 | 400°F | 204°C | Roll of 1000 | PWHT verification and heat treatment |
Applications
Industries & Use Cases
(Electrical)
(Rotating Equipment)
(Process Piping)
(Fluid Machinery)
(MCC, VFD, Panel)
(Industrial)
Related Products
See Also
Tempilabel® Series 21 — Part #26270
Single-level irreversible label rated at 300°F (149°C). Pack of 210 labels. Contact us for samples and volume pricing.
📋 Request a Quote 📞 +84 938 888 958 💬 WhatsApp ✉ sales@tempil.vn✔ Authorised Tempil® / Markal USA distributor
✔ VAT invoice — eligible for project procurement
✔ Technical support for temperature range selection
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