CAT1 Wireless Integrated Temperature and Pressure Transmitter: Remote Monitoring Solution for Industrial IoT
Product Overview
In the context of the rapid integration of industrial automation and IoT systems, distributed equipment status monitoring places higher demands on data real-time performance, deployment flexibility, and maintenance costs. The Nexisense YD-221WA series CAT1 wireless integrated temperature and pressure transmitter is an integrated measurement terminal designed precisely for such needs, integrating pressure and temperature acquisition, wireless communication, and low-power operation into a single device.
This product supports a pressure range of 0~600kPa and a temperature range of -10~150℃ (both support customized extension) and offers multiple pressure type options including gauge pressure, absolute pressure, and sealed gauge pressure. Through the built-in CAT1 communication module, the device can achieve remote data upload based on the 4G network, making it suitable for scenarios where traditional wiring is difficult or costly.
For system integrators and engineering companies, this type of wireless transmitter can serve as an on-site data acquisition node that quickly connects to existing SCADA, IoT platforms, or private cloud systems, reducing project deployment complexity while improving data acquisition efficiency.

Technical Architecture and Core Capabilities
Dual-parameter integrated measurement design
YD-221WA integrates pressure and temperature measurement on the same hardware platform, achieving synchronous acquisition through high-stability sensing elements. This design helps reduce the number of installation points and interfaces, providing obvious advantages in pipeline networks, storage tanks, or equipment-side monitoring.
The sensor section supports a 316L stainless steel diaphragm and offers optional strain-gauge or thin-film sputtering cores to adapt to different accuracy levels and working condition requirements. For application environments with temperature fluctuations, the device’s internal compensation mechanism effectively reduces the impact of temperature drift on pressure measurement.
Industrial-grade wireless communication capability
The device uses the CAT1 network as the communication foundation, supporting TCP and UDP protocols to meet different platform access requirements. Compared with traditional GPRS or LoRa solutions, CAT1 achieves a balanced industrial application adaptation between network coverage, bandwidth, and stability.
In actual projects, system integrators can set the upload interval (2min to 1440min) according to the data acquisition strategy to achieve an optimized match between energy consumption and data frequency. The device supports real-time acquisition and alarm mechanisms, making it suitable for critical process parameter monitoring scenarios.

Low-power and long-term operation capability
YD-221WA adopts 3.6V lithium battery power supply with a standard capacity of 19Ah (9Ah optional). Combined with low-power design strategies, the device achieves long-term operation without external power supply. This is especially critical for distributed monitoring points, field equipment, or temporary engineering projects.
Under reasonable acquisition and upload cycle configurations, the device can achieve multi-year operation cycles, significantly reducing on-site maintenance frequency and manual inspection costs.
Structure and installation adaptability
The device provides a standard M20×1.5 external thread interface and supports multiple customized specifications such as G1/2, G1/4, and 1/4NPT, facilitating matching with different industrial equipment or pipeline systems.
The antenna design supports built-in and external forms. For areas with weak signal coverage, an external split antenna can be selected to improve communication stability. This design has practical value in underground pipeline networks, remote sites, or complex electromagnetic environments.

Core Technical Parameters
The core technical parameters of the YD-221WA series are as follows:
Pressure Range: 0~600 kPa (support customization)
Temperature Range: -10~150℃ (support extension)
Pressure Type: Gauge pressure / Absolute pressure / Sealed gauge pressure
Accuracy Grade: 0.5%FS (optional 0.25%, 0.1%)
Power Supply Method: 3.6V lithium battery (19Ah/9Ah)
Communication Method: 4G CAT1 (TCP/UDP)
Upload Cycle: 2min~1440min configurable
Operating Temperature: -20℃~70℃ (customizable extension)
Storage Temperature: -30℃~80℃
Long-term Stability: ±0.5%FS/year (optimizable to 0.05%)
Protection and Structure: Industrial-grade design, vibration resistance ≤3g
Installation Method: M20×1.5 / G1/2 / NPT etc.
Typical Application Scenarios
Petrochemical and storage & transportation systems
In storage tanks, transmission pipelines, and process equipment, remote monitoring of pressure and temperature is realized, supporting abnormal early warning and operation analysis, reducing dependence on on-site inspections.
Smart water management and pipeline network monitoring
Applied to water supply pipeline networks, booster stations, and remote nodes to realize pressure distribution monitoring and leakage analysis, providing data support for water management system optimization.
Industrial equipment operation and maintenance and predictive maintenance
Deploy wireless monitoring nodes in air compressors, pump stations, or hydraulic systems, and combine historical data analysis to realize equipment status assessment and maintenance strategy optimization.
Distributed energy and environmental protection systems
Suitable for desulfurization and denitrification, gas treatment, and distributed energy stations to realize remote acquisition and centralized management of key parameters.
System Integration and Data Platform Docking
Nexisense YD-221WA not only operates as an independent sensing terminal but can also be deeply integrated with IoT edge modules and cloud platforms. Through standard TCP/UDP protocols, the device can quickly connect to:
Industrial SCADA systems
IoT cloud platforms (private cloud/public cloud)
Enterprise MES or data middle platforms
System integrators can realize multi-device collaborative monitoring based on a unified data interface, integrating pressure, temperature, flow, power, and other data for fusion analysis to build a complete process monitoring system.
Installation Deployment and Engineering Implementation Suggestions
In actual engineering deployment, it is recommended to give priority to the following key points:
Select stable measurement points and avoid areas with strong vibration and gas-liquid impact
Choose the appropriate antenna form according to network coverage
Reasonably configure the upload cycle to balance real-time performance and battery life
Set alarm thresholds at critical nodes to realize automatic early warning
Perform data verification and periodic maintenance strategy formulation in cooperation with the platform
These strategies help improve the overall reliability of the system and reduce later maintenance costs.
FAQ
Q1. How is the stability of CAT1 communication evaluated in industrial sites?
CAT1 is based on a mature 4G network system and has good coverage in urban areas and most industrial regions. For remote areas, it is recommended to conduct signal testing at the initial stage of the project and optimize communication quality by combining external antenna solutions.
Q2. How to achieve a balance between low power consumption and high-frequency acquisition?
The key lies in reasonably setting the acquisition and upload cycles. For non-critical parameters, an interval upload strategy can be adopted; for critical equipment, an “exception-priority upload” mechanism can be combined with event triggering.
Q3. How does the device ensure stable operation in high-temperature or low-temperature environments?
Environmental adaptation can be achieved through customized extended temperature ranges and the selection of suitable materials (such as high-temperature diaphragms). It is also recommended to add protective measures in extreme environments, such as thermal insulation or insulation structures.
Q4. How to achieve unified management and maintenance when deploying multiple devices?
It is recommended to use an IoT platform for centralized management to realize equipment status monitoring, battery power early warning, and remote parameter configuration, reducing on-site maintenance workload.
Q5. Compared with wired transmitters, what are the advantages of wireless solutions?
Wireless solutions have obvious advantages in deployment flexibility and construction costs, especially suitable for existing system retrofits, dispersed points, or temporary projects, but communication and power supply strategies need to be reasonably planned.
Q6. How to ensure data security and system stability?
Security control can be achieved through dedicated APN networks, encrypted data transmission, and platform permission management. It is also recommended to add data redundancy and anomaly detection mechanisms in the system architecture.
Summary
The Nexisense YD-221WA series CAT1 wireless integrated temperature and pressure transmitter provides an efficient data acquisition solution for industrial IoT scenarios by deeply integrating pressure and temperature measurement, wireless communication, and low-power design.
For system integrators and engineering project teams, this product not only reduces on-site wiring and construction complexity but can also quickly connect to existing platforms through standard communication protocols to build scalable distributed monitoring systems.
In the context of the continuous advancement of industrial digitalization, sensing devices with remote communication capabilities and long-term stable operation characteristics will become indispensable basic nodes in engineering projects. Nexisense continues to optimize its product system around industrial sensing and edge data acquisition, supporting monitoring needs and system integration applications under various complex working conditions.
