YELLOW 138S Disposable Pop-Up Indicator
YELLOW 138S Disposable Pop-Up Indicator
PopNReady YELLOW 138S is a food-grade disposable pop-up indicator designed for medium rare beef and meat temperature indication applications. Manufactured by LIOU Manufacturing & PopNReady since 2006, this single-use temperature indicator provides a reliable visual signal when the internal temperature reaches 138°F (59°C).
Designed for professional food processing environments, YELLOW 138S helps meat processors, restaurants, catering companies and OEM food manufacturers achieve consistent cooking results with a simple and efficient temperature indication solution.
As a direct-source manufacturer specializing in disposable pop-up indicators, LIOU Manufacturing supplies YELLOW 138S for global B2B customers requiring stable bulk production, food-grade materials and flexible customization options.
YELLOW 138S Product Specifications
| Model Number | YELLOW 138S |
| Size | Small (S) - 1-1/8 inches (28.6 mm) in length |
| 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 |
| Spring Type | Metal Spring Construction |
| Internal Sensing Medium | Food-derived thermal wax |
| BPA Status | BPA-Free |
| Heavy Metals | None |
Product Features
YELLOW 138S provides accurate temperature indication for medium rare meat applications. Its compact size makes it suitable for standard portion sizes and commercial food products where reliable temperature monitoring is required.
- 138°F medium rare activation temperature
- Small size design for standard meat portions
- ±2°F activation accuracy
- Food-grade PA66 nylon construction
- BPA-free thermal sensing system
- Single-use disposable design
- Stable specifications for industrial packaging
Applications
YELLOW 138S is suitable for meat products requiring medium rare temperature indication and consistent cooking control.
- Medium rare beef products
- Roast beef applications
- Meat processing plants
- Premium food products
- Restaurant chains
- Central kitchens
- Commercial catering
- Ready meal manufacturers
OEM & Custom Manufacturing Solutions
LIOU Manufacturing provides direct factory OEM solutions for customers requiring customized disposable pop-up indicators.
YELLOW 138S can be customized according to customer requirements:
- Activation temperature customization
- Button head color customization
- Logo injection molding
- Private label production
- Blister card packaging
- Transparent bag packaging
- Display box packaging
Bulk Supply For Food Industry Customers
YELLOW 138S is mainly supplied as a bulk OEM product for overseas food processors, distributors and commercial food companies.
With production experience since 2006, LIOU Manufacturing supports long-term supply partnerships with stable quality, consistent dimensions and professional export service.
- Direct factory supply
- Bulk export production
- OEM packaging support
- International B2B supply
Quality & Material Safety
YELLOW 138S is manufactured with food-grade materials designed for food temperature indication applications.
- Food-grade PA66 nylon housing
- Food-grade PA66 internal core
- Food-derived thermal wax sensing material
- BPA-free design
- No heavy metals
- FDA support
- EU food contact compliance support
- BRC quality requirement support
Frequently Asked Questions
What is YELLOW 138S used for?
YELLOW 138S is designed for medium rare beef and meat temperature indication applications.
What temperature does YELLOW 138S activate?
The activation temperature is 138°F (59°C).
Is YELLOW 138S a thermometer?
It is a disposable temperature indicator designed to provide a visual temperature indication rather than a reusable measurement device.
What is the size of YELLOW 138S?
YELLOW 138S uses the Small (S) size design with approximately 1-1/8 inch length.
Can you customize the temperature?
Yes. LIOU Manufacturing supports customized activation temperatures for OEM customers.
Can customers order bulk quantities?
Yes. Bulk OEM production is our main supply model for global B2B buyers.
Can you add our company logo?
Yes. Logo injection on the button head is available for customized production.
Who buys YELLOW 138S?
Typical customers include meat processors, food manufacturers, restaurant groups, distributors and OEM companies.
Do you provide retail packaging?
Yes. We provide customized retail packaging including blister cards and display boxes.
DISCLAIMER
"Disposable Pop-Up Indicator" is a generic industry term used to describe single-use temperature indication devices. YELLOW 138S is independently manufactured by LIOU Manufacturing & PopNReady for food processing and B2B applications. We are not affiliated with any third-party brands or manufacturers. Any references are provided only for product identification and industry application purposes.