YELLOW 138L Disposable Pop-Up Temperature Indicator
YELLOW 138L Disposable Pop-Up Temperature Indicator
YELLOW 138L is a large-size disposable pop-up temperature indicator developed for professional meat processing and commercial cooking applications requiring a longer insertion length. With a 138°F activation temperature, this model provides reliable visual temperature indication for medium roast products and larger food items.
Manufactured by LIOU Manufacturing – PopNReady Brand, YELLOW 138L combines specialized production experience since 2006 with direct factory OEM capability. It is designed for global B2B customers seeking stable bulk supply, consistent activation performance, and flexible customization options.
Product Specifications
| Model | YELLOW 138L |
| Size | Large (L) - 1-3/8" in length (34.9 mm) |
| Button Head Color | Yellow |
| Activation Temperature | 138°F (59°C) |
| Activation Accuracy | ±2°F (±1°C) |
| Housing Material | Food-grade PA66 Nylon |
| Core Material | Food-grade PA66 Nylon |
| Temperature Sensing Element | Food-grade wax sensing medium |
| Spring Construction | Metal spring |
| BPA Status | BPA-Free |
| Heavy Metal Content | None |
Extended Length Design For Commercial Food Processing
The YELLOW 138L model is designed for larger food products where deeper insertion and stable temperature positioning are required. Compared with the Small version, the Large design provides additional length for professional cooking environments.
The 138°F activation point makes this model suitable for medium roast applications where food manufacturers need a simple and reliable visual indication of internal temperature achievement.
Main Product Features
- Large-size design for deeper temperature placement
- 138°F medium roast activation temperature
- Clear pop-up indication after reaching target temperature
- Single-use disposable construction
- Food-grade material selection
- Suitable for industrial cooking environments
Recommended Applications
- Medium roast beef products
- Large beef cuts
- Meat processing plants
- Commercial roasting lines
- Food service production
- Central kitchen operations
- Prepared meal manufacturers
- Industrial food packaging applications
OEM Customization Capabilities
LIOU Manufacturing provides factory-direct OEM solutions for customers requiring customized disposable temperature indicators for different markets and applications.
Available customization options:
- Custom Activation Temperature
- Custom PANTONE Color Matching
- Custom Logo Injection Molding On Button Head
- Custom Retail Blister Card Packaging
- Custom Clear Resealable Bag Packaging
- Private Label Production
Materials & Safety Information
YELLOW 138L is manufactured using food-grade materials selected for professional food applications. The product structure is designed for reliable activation and consistent performance during cooking and food processing.
- Food-grade PA66 Nylon housing
- Food-grade PA66 Nylon internal core
- BPA-Free materials
- Food-grade wax sensing element
- Metal spring mechanism
- No heavy metal materials
Direct Factory Bulk Supply
As a specialized disposable pop-up temperature indicator manufacturer, PopNReady supplies YELLOW 138L directly to international distributors, food processors, meat companies, and OEM partners.
Our factory focuses on one specialized product category:
One Product. Professional. Focused. 100% for Export Only.
Frequently Asked Questions
1. What is YELLOW 138L?
YELLOW 138L is a large-size disposable pop-up temperature indicator designed for medium roast applications with a 138°F activation temperature.
2. What is the activation temperature?
The activation temperature is 138°F (59°C).
3. What is the difference between YELLOW 138S and 138L?
Both models have the same activation temperature. The difference is the size, with 138L providing a longer insertion length for larger food products.
4. Is YELLOW 138L reusable?
No. It is a disposable single-use temperature indicator.
5. What applications are suitable for this model?
It is suitable for medium roast beef, larger meat products, commercial cooking, and industrial food processing.
6. Can you customize this model?
Yes. We support customized temperature settings, colors, logos, and packaging.
7. Can you supply large quantities?
Yes. Bulk OEM production is our primary supply model for international B2B customers.
8. What materials are used?
The product uses food-grade PA66 Nylon components, food-grade wax sensing material, and metal spring construction.
9. Are certifications available?
FDA, EU food contact compliance, and BRC related certification support are available according to customer requirements.
DISCLAIMER:
"Pop-Up Temperature Indicator" and "Pop-Up Timer" are generic industry terms used to describe disposable temperature indication devices in the food processing industry. LIOU Manufacturing – PopNReady Brand is an independent Chinese direct-source manufacturer and is not affiliated with VOLK or any other third-party brand. Any reference to other brands is provided only for identification, comparison, and compatibility purposes. YELLOW 138L is independently manufactured by PopNReady for professional cooking, commercial food processing, and OEM supply applications.