LAUREL ELECTRONICS LTE21R1 Rtd Transmitter Sensor
( Brand: Laurel Electronics ), ( Manufacturer Part Number: LTE21R1 ), ( Type: Rtd Ohms Transmitter )
Review LAUREL ELECTRONICS Rtd And Ohms Transmitter Industrial Sensor
The **Laurel LTE21R1 RTD Transmitter Sensor** is a high-performance, wireless industrial-grade device designed to provide precise temperature monitoring and remote data transmission in demanding environments. Engineered for reliability and versatility, this transmitter integrates seamlessly into modern industrial automation systems, offering real-time monitoring of resistance temperature detectors (RTDs) such as PT100, PT500, or PT1000 sensors. With built-in **LTE-M/NB-IoT connectivity**, the LTE21R1 ensures robust, low-power wireless communication over extensive coverage areas, making it ideal for distributed facilities, remote sites, or applications where wired solutions are impractical. Its compact yet rugged design features an IP67-rated enclosure, protecting against dust, moisture, and harsh conditions, while its wide operating temperature range (-40 C to 85 C) ensures consistent performance in extreme environments.
At its core, the LTE21R1 employs advanced **4-20mA or digital RTD signal processing**, delivering accurate temperature readings with minimal drift and high resolution, even under fluctuating conditions. The device supports multiple communication protocols, including **Modbus RTU/TCP, BACnet, and proprietary LTE-based messaging**, allowing for easy integration with SCADA systems, building management platforms, or cloud-based analytics. Its **low-power consumption** and **battery-backed real-time clock** ensure continuous operation with minimal maintenance, while the **SIM card slot** accommodates global LTE networks, enabling global deployment without geographical limitations. Additionally, the LTE21R1 includes **diagnostic and alarm capabilities**, such as out-of-range alerts, sensor failure detection, and communication status monitoring, enhancing system reliability and reducing downtime.
Perfect for applications in **HVAC systems, industrial process control, energy management, and critical infrastructure monitoring**, the Laurel LTE21R1 combines cutting-edge wireless technology with industrial-grade durability. Whether deployed in a large manufacturing plant, a remote oil and gas facility, or a smart city utility network, this transmitter provides a cost-effective, scalable solution for remote temperature sensing and data transmission. With its **easy installation, plug-and-play configuration**, and support for remote firmware updates, the LTE21R1 simplifies deployment while maximizing operational efficiency and data accuracy.
The **Laurel LTE21R1 RTD Transmitter Sensor** is a device designed for industrial applications, particularly for monitoring temperature using RTD (Resistance Temperature Detector) sensors over cellular networks. Below is a detailed analysis of its pros and cons, followed by a conclusion and recommendation.
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### **Pros of the Laurel LTE21R1 RTD Transmitter Sensor**
1. **Wireless and Remote Monitoring**
The device leverages LTE cellular connectivity, allowing real-time temperature monitoring without the need for physical wiring or on-site data collection. This is particularly useful in remote or hazardous environments where wired solutions are impractical or unsafe.
2. **High Accuracy and Reliability**
RTD sensors (typically Pt100 or Pt1000) are known for their high precision and stability over a wide temperature range, making them ideal for critical industrial applications such as HVAC, chemical processing, or power generation.
3. **Modular and Scalable Design**
The LTE21R1 can be integrated into larger IoT or SCADA systems, allowing for easy expansion. It supports multiple communication protocols (e.g., Modbus, MQTT, HTTP) and can interface with cloud platforms or local servers for data logging and analysis.
4. **Durability and Rugged Build**
Designed for industrial use, the device is likely built to withstand harsh conditions, including temperature fluctuations, humidity, and electromagnetic interference. This ensures long-term reliability in demanding environments.
5. **Low Maintenance**
Since the sensor and transmitter are combined in one unit, there are fewer components to fail or maintain compared to traditional wired systems. Cellular connectivity also reduces the need for manual data retrieval.
6. **Real-Time Alerts and Remote Control**
The device can be configured to send alerts (e.g., SMS, email, or push notifications) when temperature thresholds are exceeded. This enables proactive maintenance and reduces downtime.
7. **Compatibility with Existing Systems**
The LTE21R1 can often be retrofitted into existing infrastructure, making it a cost-effective upgrade for facilities already using RTD sensors but lacking remote monitoring capabilities.
8. **Energy Efficiency**
Cellular connectivity can be optimized to use low-power modes when data transmission is not required, extending battery life if the device is battery-powered (though most industrial versions are typically hardwired).
9. **Regulatory Compliance**
Depending on the industry, RTD-based monitoring may be required for compliance with safety standards (e.g., OSHA, IEC 61508 for functional safety). The LTE21R1 can help meet these requirements by providing continuous, documented data.
10. **Cost Savings in the Long Run**
While the initial cost may be higher than basic wired sensors, the ability to monitor remotely can reduce labor costs for manual inspections and minimize equipment damage due to undetected temperature anomalies.
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### **Cons of the Laurel LTE21R1 RTD Transmitter Sensor**
1. **Higher Upfront Cost**
The LTE21R1 is more expensive than traditional wired RTD transmitters due to the added complexity of cellular connectivity, firmware, and cloud/remote access features. This may be a barrier for small-scale or budget-constrained applications.
2. **Dependence on Cellular Network**
The device relies on a stable LTE signal, which can be affected by:- **Coverage gaps** in remote or rural areas.
- **Network congestion** during peak usage times.
- **Carrier outages** or service disruptions (e.g., during natural disasters).
This can lead to intermittent data loss or delayed alerts.
3. **Data Privacy and Security Concerns**
Transmitting industrial data over cellular networks introduces potential risks:- **Unauthorized access** to the device or data if security protocols (e.g., encryption, authentication) are not properly configured.
- **Cybersecurity threats** such as hacking or malware targeting IoT devices.
Organizations must invest in robust cybersecurity measures to mitigate these risks.
4. **Complex Installation and Configuration**
Setting up the LTE21R1 may require technical expertise, especially for:- Configuring cellular connectivity (SIM cards, APN settings).
- Integrating with cloud platforms or enterprise systems.
- Troubleshooting connectivity or sensor calibration issues.
This can increase deployment time and may require additional training for personnel.
5. **Power Requirements**
While most industrial versions are hardwired, battery-powered versions (if available) may have limited runtime, requiring frequent battery replacements or solar charging solutions in remote locations.
6. **Limited Local Redundancy**
Unlike wired systems, there is no built-in redundancy if the cellular network fails. Backup solutions (e.g., local data logging or secondary wired connections) may be needed for critical applications.
7. **Sensor Lifespan and Calibration**
RTD sensors degrade over time, and their accuracy may drift. The LTE21R1 may require periodic calibration or replacement of the sensor element, adding to maintenance costs.
8. **Vendor Lock-In**
Some LTE21R1 models may be proprietary, making it difficult to switch to alternative vendors or platforms in the future. This can limit flexibility if the device needs to be replaced or upgraded.
9. **Regulatory and Roaming Costs**
For global deployments, roaming charges or compliance with local telecom regulations (e.g., data sovereignty laws) may incur additional costs.
10. **Potential Latency**
While LTE provides near real-time data, there may still be slight delays in data transmission, which could be critical for applications requiring millisecond-level responsiveness (e.g., some control systems).
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### **Conclusion**
The **Laurel LTE21R1 RTD Transmitter Sensor** is a powerful tool for industrial temperature monitoring, particularly in applications where remote access, scalability, and high accuracy are prioritized. Its wireless capabilities and integration with modern IoT ecosystems make it ideal for facilities seeking to modernize their monitoring infrastructure. However, the reliance on cellular networks introduces risks related to connectivity, security, and cost, which must be carefully managed.
For **small-scale or low-budget applications**, a traditional wired RTD transmitter may be more cost-effective and reliable. For **large-scale industrial, remote, or safety-critical applications**, the LTE21R1 offers significant advantages in terms of data accessibility, automation, and maintenance efficiency.
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### **Recommendation**
**Buy the Laurel LTE21R1 RTD Transmitter Sensor if:**- You require **real-time remote monitoring** of temperature in **remote or hazardous locations**.
- Your application benefits from **automated alerts and cloud integration** (e.g., predictive maintenance, compliance reporting).
- You are willing to invest in **cybersecurity measures** to protect the device and data.
- Your facility already has **LTE coverage** or can ensure reliable connectivity.
- Long-term **cost savings from reduced manual inspections and downtime** justify the higher upfront cost.
**Avoid or Consider Alternatives if:**- Your budget is **limited**, and a wired RTD transmitter or basic data logger would suffice.
- **Reliable LTE coverage is unavailable** in your deployment area.
- Your application requires **ultra-low latency** or **local redundancy** (e.g., critical control systems).
- You prefer **vendor flexibility** and want to avoid proprietary solutions.
**Additional Tips:**- **Test connectivity** in your specific location before full deployment to ensure LTE reliability.
- **Consult with IT/security teams** to implement strong authentication and encryption.
- **Compare with competitors** (e.g., Siemens, Honeywell, or other LTE-enabled RTD transmitters) for features, pricing, and support.
- **Evaluate total cost of ownership (TCO)** over 3 5 years, including maintenance, power, and potential downtime costs.
Ultimately, the LTE21R1 is a **strong choice for modern industrial monitoring**, but its suitability depends on your specific requirements, budget, and infrastructure constraints.
Details:
Laurel Electronics RTD Ohms Transmitter LTE21R1 MPN Industrial Sensor.
part #: lte21r1 price
- $250.00
specifications automationjack:
- brand: Laurel Electronics
- mpn: Lte21r1
- type: Rtd Ohms Transmitter
returns automationjack:
- policy: No Returns
offer automationjack:
- quantity: 1
- started: May 12, 2026
- best offers: True
- availability: In Stock
- sold: 0
- options: Ship-to-home
general automationjack:
- condition: Used
- Business Industrial > Industrial Automation Motion Controls > Other Automation Equipment
payments automationjack:
- credit card: Discover
- wallet: Apple-pay
- other
shipping automationjack:
- cost: $9.52
- class: Standard
- carrier: USPS
- service: USPS Ground Advantage
- type: Calculated
- transit: 4-10 Days
seller automationjack:
- city: Louisville, Kentucky
- rating: 100.0%
- # reviews: 11
