Temperature Sensing / Water Color-Change Labels

Temperature Sensing Labels

Product Overview

Brady’s B-7511 and B-7518 are sensing labels designed for temperature monitoring. With visual color-change indication, they record or show in real time whether an object has been exposed to a specific temperature.

Product Features

  • B-7511: Irreversible color change—records the highest temperature reached
  • B-7518: Reversible color change—shows temperature status in real time

These labels are widely used for electronic components, battery modules, cold-chain logistics, industrial processes, and warranty management.

Product List

B-7511 Irreversible Labels

B-7511 Irreversible Labels

  • Permanent color change at temperature—irreversible and suitable as a record
  • Temperature range: 37°C–143°C (99°F–289°F)
  • Accuracy:
  • Material: Clear polyester + acrylic adhesive
  • Thickness: Approx. 0.175 mm (including sensing layer)
  • High adhesion for stainless steel, ABS, PP, and powder-coated surfaces
  • Shelf life: 2 years; store below 27°C
B-7518 Reversible Labels

B-7518 Reversible Labels

  • Color changes at temperature and reverts when it drops—ideal for continuous monitoring
  • Temperature range: 0°C–100°C (32°F–212°F)
  • Accuracy: ±1°C
  • Material: Clear polyester + acrylic adhesive
  • Thickness: Approx. 0.22 mm (dome type up to 2 mm)
  • Color change: green → orange → red (by temperature grade)
  • Used in cold chain, electrical equipment, labs, food processing, and more
  • RoHS and REACH compliant

Solution Details

Application B-7511 (Irreversible) B-7518 (Reversible)
Electronics & battery modules Records whether a high temperature was reached to help prevent thermal runaway Monitors temperature changes in real time to help prevent overheating
Process quality control Confirms whether a process hit target or overheated Visualizes temperature status in real time for operator judgment
Cold-chain logistics & storage Tracks whether goods were exposed to high temperature Continuously monitors hot/cold status to protect sensitive materials
Warranty & maintenance Serves as permanent evidence of heat exposure Provides a real-time temperature reference to assess usage conditions

Specification Comparison

Item B-7511 (Irreversible) B-7518 (Reversible)
Sensing mechanism Permanent color change; records peak temperature Reversible color change; shows temperature status in real time
Temperature range 37°C–143°C 0°C–100°C
Accuracy ±1°C / ±1.5°C ±1°C
Material thickness Approx. 0.175 mm Approx. 0.22 mm (dome type up to 2 mm)
Adhesion High adhesion on many surfaces Also offers high adhesion
Compliance RoHS RoHS, REACH

Water Color-Change Labels

Product Overview

Brady B-350 is a polyester technical label with a visual “turns red on water contact” warning. Built for warranty control, anti-counterfeit identification, and electronics safety design, its stable color-change mechanism gives an immediate visual alert when devices or sealed items take on water—supporting repair judgment and asset protection.

Primary uses:

  • Water-ingress monitoring for electronics (e.g. phones, laptops)
  • Sample sealing and secure sealing of adjustment points
  • Deterring unauthorized warranty claims and identifying counterfeit products
  • Asset management and maintenance-record support

Product Features

1. Humidity-sensing module safety monitoring

Install B-350 on module housings or waterproof covers for a power-free warning mechanism.

Paired with electronic humidity sensors, it forms visual + digital dual-layer protection.

2. Industrial equipment diagnostic support

Apply B-350 to control boxes, sensors, or waterproof connectors to flag water-ingress risk immediately.

High heat resistance suits heavy-duty industrial processes.

Extended benefits

  • Lower warranty disputes and unauthorized-repair costs
  • Strengthen anti-counterfeit and safety design
  • Improve module reliability and market competitiveness
  • Support smart manufacturing, automated maintenance workflows, and asset tracking

Technical Specifications & Material Properties

Specification Details
Model B-350
Material Polyester
Color change White (or other neutral) when dry; turns bright red on contact with water
Thickness Approx. 0.0020 in (0.0508 mm), excluding adhesive
Adhesive Pressure-sensitive acrylic adhesive; bonds reliably to many surfaces
Heat resistance Operating range -40°C to +100°C; short-term up to 120°C
Water resistance Meets ASTM D1000; withstands repeated moisture exposure
Size options Multiple sizes (e.g. 0.25" × 0.5", 0.5" × 1"); custom sizes available
Print method Thermal transfer capable (R6000 ribbon recommended)
Test standards ASTM D1000, Brady TDS specifications

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