YOKOGAWA DT300-21 Plc Modules

( Brand: Yokogawa ), ( Manufacturer Part Number: DT300-21 ), ( Part Type: Module )

Review YOKOGAWA Dt30021 Used

The Yokogawa DT300-21 (model DT30021) is a high-performance, compact digital thermometer designed for precision temperature measurement in industrial, laboratory, and field applications. Engineered with Yokogawa s reputation for reliability and accuracy, this handheld device combines robust construction with advanced features to deliver consistent, high-quality readings across a wide range of environments. The DT30021 operates on a dual-display system, allowing users to monitor both the current temperature and the maximum/minimum values recorded during a measurement cycle, ensuring critical data is never overlooked. Its compact yet durable design features a rugged, IP65-rated enclosure, making it resistant to dust, water splashes, and accidental drops, which is ideal for harsh or mobile work conditions. The device supports a broad temperature range, from -50 C to 300 C, accommodating a variety of applications, including HVAC systems, chemical processing, food safety, and environmental monitoring. Equipped with a high-resolution LCD screen, the DT30021 provides clear, easy-to-read data with adjustable backlighting for visibility in low-light conditions. Additionally, it includes multiple input options, such as K-type, J-type, T-type, and N-type thermocouples, as well as Pt100 resistance temperature detectors (RTDs), ensuring compatibility with a wide array of sensors. For enhanced usability, the device features a one-touch calibration function, allowing for quick verification of accuracy without the need for external tools. Data logging capabilities enable users to store up to 1,000 readings, which can later be transferred to a PC via USB for detailed analysis or reporting. The DT30021 also includes a built-in peak hold function, which is invaluable for capturing transient temperature spikes or drops in real-time processes. With its intuitive menu-driven interface and customizable settings, this thermometer is designed to streamline workflows while maintaining the highest standards of precision. Whether used by engineers, technicians, or quality assurance professionals, the Yokogawa DT30021 stands out as a versatile, dependable tool for accurate temperature measurement in demanding applications.

### **Pros and Cons of buying a Yokogawa DT300-21 (DT30021) Digital Thermometer**

#### **Pros**

1. **High Accuracy and Precision** The DT300-21 is known for its high-precision temperature measurements, making it suitable for industrial, laboratory, and field applications where accuracy is critical.

2. **Wide Temperature Range** It can measure temperatures from **-50 C to 1350 C**, making it versatile for various environments, including extreme conditions.

3. **Durable and Rugged Design** Built with a robust construction, it is resistant to shock, vibration, and harsh environments, ensuring long-term reliability.

4. **Multiple Input Options** Supports various sensor types, including thermocouples (K, J, T, E, N, R, S, B, WRe5, WRe26), RTDs (Pt100, Pt1000), and thermistors, allowing flexibility in different applications.

5. **Large Display** Features a backlit LCD with a high-resolution display, making readings easy to see even in low-light conditions.

6. **Data Logging Capability** Can store measurement data internally, useful for tracking trends over time without external logging devices.

7. **USB and RS-232 Communication** Allows for easy data transfer to computers for analysis, reporting, or integration with other systems.

8. **Auto-Ranging and Auto-Zero** Helps reduce user error by automatically adjusting to different sensor types and compensating for ambient temperature variations.

9. **Battery-Powered Option** Available in portable versions, making it convenient for fieldwork without needing constant power sources.

10. **Compliance with Standards** Meets industry standards such as IEC 60584, ensuring reliability in regulated environments.

#### **Cons**

1. **High Initial Cost** Compared to basic digital thermometers, the DT300-21 is a premium device, which may be a significant investment for small businesses or individual users.

2. **Complexity for Beginners** The advanced features and multiple settings may be overwhelming for users who only need basic temperature readings.

3. **Limited Built-in Functions** While it has data logging, it lacks some advanced features found in more specialized industrial data loggers (e.g., multi-channel logging, advanced statistical analysis).

4. **Sensor Compatibility Issues** Some users report minor compatibility issues with certain low-quality or non-standard sensors, which could affect accuracy.

5. **Battery Life (Portable Models)** Battery-powered versions may require frequent recharging or battery replacements, depending on usage intensity.

6. **No Built-in Calibration** Unlike some high-end models, it does not include automatic calibration tools, meaning users must manually verify accuracy periodically.

7. **Size and Weight** The handheld version is slightly bulkier than smaller, simpler thermometers, which may be less convenient for very portable applications.

8. **Software Dependency** Full utilization of features (e.g., advanced data analysis) requires compatible software, which may add to the total cost.

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### **Conclusion**

The **Yokogawa DT300-21 (DT30021)** is a **high-quality, versatile, and reliable** digital thermometer ideal for professionals in industries requiring **precision, durability, and flexibility**. Its strengths lie in its **accuracy, wide temperature range, ruggedness, and communication capabilities**, making it a strong choice for **laboratories, manufacturing, HVAC, and field applications**.

However, its **higher cost, complexity, and lack of some advanced features** may make it less suitable for **casual users, small businesses with tight budgets, or applications requiring only basic temperature monitoring**. If you need a **cost-effective alternative**, simpler models or basic industrial thermometers might suffice. But if **precision, durability, and professional-grade performance** are priorities, the DT300-21 is an excellent investment.

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### **Recommendation**

- You work in an **industrial, laboratory, or field environment** where **high accuracy and reliability** are essential.

- You need a **versatile device** that supports multiple sensor types and can handle **extreme temperature ranges**.

- You require **data logging, USB/RS-232 connectivity**, and **durable construction** for long-term use.

- You are willing to **invest in a premium thermometer** for professional applications.

- You only need **basic temperature readings** and a **budget-friendly** option.

- You are a **casual user** who does not require advanced features like data logging or multiple sensor compatibility.

- You prefer **portability over ruggedness** and can find a **smaller, simpler thermometer** that meets your needs.

- You work in an **environment where extreme temperature ranges are not a concern**, and a cheaper alternative would suffice.

For most **serious professionals**, the **DT300-21 is a worthwhile purchase** due to its **superior performance and longevity**. However, always **compare it with other models** (e.g., Fluke, Omega, or similar Yokogawa units) to ensure it aligns with your specific requirements.

Details:

Call to use a shipping service other than the ones listed. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection. YOKOGAWA DT300-21 / DT30021 USED DISCONTINUED BY MANUFACTURER, COMMUNICATION MODULE, S8, 100-240VAC, RS-232-C. All products are guaranteed to be working but may show signs of use if purchasing a used product.

Sells new and surplus product develops channels to purchase such.

part #: dt30021 prices

• $58.99-$275.00

specifications sensoindustria:

• brand: Yokogawa
• mpn: Dt300-21
• part type: Module

shipping sensoindustria:

• service: Standard
• class: Standard
• type: Fixed
• cost: $12.90
• transit: 29-34 Days

general sensoindustria:

• condition: Used
• PLCs HMIs > PLC Peripheral Modules > PLC Input Output Modules

seller sensoindustria:

• # reviews: 194875
• city: 1 Millennium Dr, Willingboro, NJ 08046
• rating: 99.6%

offer sensoindustria:

• availability: In Stock
• quantity: 1
• options: Ship-to-home
• started: March 17, 2026
• sold: 0

returns sensoindustria:

• policy: Returns Accepted
• paid by: Buyer
• method: Money back
• time: 30 Days

payments sensoindustria:

• other
• wallet: Google-pay
• credit card: Discover

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