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YD-221WA4-4G/Cat1 Wireless Temperature and Humidity Transmitter: Stable Edge Node for Industrial Remote Environmental Monitoring
Product Overview
In industrial sites such as petrochemical, oilfield extraction, natural gas pipeline networks, state grid substations, and water conservancy and hydropower facilities, the real-time and reliable acquisition of environmental temperature and humidity parameters is an important link to ensure process safety, stable equipment operation, and project compliance. Nexisense YD-221WA4-4G/Cat1 wireless temperature and humidity transmitter, as an industrial IoT edge acquisition module, integrates high-quality sensing elements and 4G/Cat1 communication module, specially designed for system integrators, IoT solution providers, and engineering project contractors.
This transmitter supports wide-range measurement of working humidity 0%~100%RH and working temperature -20~80°C, with accuracy grade 0.5%FS, and can be customized to 0.25%FS or 0.1%FS high-precision versions according to project requirements. The 316L stainless steel probe rod material combined with low-power design and large-capacity lithium battery power supply enables long-term autonomous operation in power wiring-limited or remote sites. Through 4G/Cat1 wireless transmission, data can be directly uploaded to the free cloud platform without additional gateways or complex wiring, significantly simplifying the engineering deployment process.
The instrument is equipped with an LCD low-power on-site display for quick local data verification, and supports bracket installation and various thread interface customizations to adapt to different process interface requirements. Its electromagnetic compatibility complies with GB/T17626.2/4-2006 standards, and vibration performance meets IEC 60068-2-6-2007 requirements, ensuring stable output in industrial vibration environments.
Core Technical Parameters
The parameter configuration of YD-221WA4 is optimized for the actual working conditions of industrial sites:
Range: Working humidity 0%~100%RH, working temperature -20~80°C
Accuracy grade: 0.5%FS (customizable 0.25%FS, 0.1%FS)
Long-term stability: ±0.2%FS/year ~ ±0.5%FS/year (high-precision versions can reach higher levels)
Power supply: 3.6V lithium battery, capacity 9900mAh (optional 19000mAh)
On-site display: LCD low-power display
Probe rod material: Stainless steel 316L (customizable strain core or thin film sputtering core)
Working environment: Temperature -20°C~70°C (high/low temperature versions customizable), relative humidity 0%~95%
Vibration performance: ≤3g/10Hz...150Hz
Transmission method: 4G/Cat1
Transmission distance: Not limited by distance (relying on operator 4G network)
Installation method: Bracket installation
Antenna form: External integrated or built-in/external split (external split antenna recommended for weak signal areas)
Housing color: Default blue-purple (customizable for more than 1000 units)
Storage temperature: -30°C~80°C (high temperature version customizable)
Weight: Approximately 1.6kg (subject to actual product)
These parameters ensure that the transmitter balances measurement accuracy, long-term stability, and wireless transmission reliability in complex industrial environments.
Performance Advantage Analysis
The core advantages of YD-221WA4 are reflected in sensing stability, wireless transmission convenience, and low-maintenance design. The 316L stainless steel probe rod provides good corrosion resistance, suitable for long-term deployment in gas or mildly corrosive environments. The optional high-precision versions meet process links with high sensitivity to environmental parameters, such as precision storage or monitoring around critical equipment.
The 4G/Cat1 communication module utilizes existing operator networks to achieve direct data upload to the cloud, avoiding the wiring difficulties of traditional wired solutions and the integration complexity of LoRa and other solutions requiring additional gateways. The low-power circuit combined with large-capacity lithium battery significantly extends the on-site operation cycle and reduces the regular maintenance investment of engineering companies. The coexistence of LCD on-site display and wireless upload provides dual verification means for system debugging and troubleshooting.
Compared with traditional wired temperature and humidity transmitters, this product offers higher deployment flexibility and more competitive overall project integration costs in scenarios such as remote oilfield wellheads, distributed water conservancy monitoring points, or natural gas station sites.
Cloud Platform Functions and Remote Management Value
The instrument supports free cloud platform access, realizing the following core functions:
24-hour all-weather monitoring: View real-time on-site temperature and humidity data and trend curves anytime via mobile phone or computer.
Abnormal over-limit alarm: Upper and lower alarm limits can be set, and real-time push via SMS and phone when thresholds are exceeded.
Multi-person management and permission control: Supports multi-level permission access, project leaders can add sub-accounts for team members to achieve hierarchical collaborative management.
Data storage and query: Automatically records historical data, supports query, export, and traceability to meet engineering project audit and process optimization needs.
For system integrators, these functions facilitate seamless integration of temperature and humidity data into upper SCADA or proprietary IoT platforms, supporting common protocols such as TCP/UDP/MQTT. For engineering companies, remote monitoring capabilities reduce on-site inspection frequency, directly lowering labor and vehicle operation and maintenance costs, while enhancing long-term service capabilities after project delivery.
This product has covered multiple industry scenarios such as fire protection facility environmental monitoring, natural gas pipeline network humidity control, oilfield equipment room temperature and humidity supervision, state grid substation environmental parameter acquisition, and geological-related environmental monitoring around water conservancy and hydropower dams.
Installation and Usage Guide
To ensure measurement accuracy and long-term equipment reliability, the installation process must follow standardized operations:
Confirm that the temperature and humidity measurement range required by the process matches the transmitter range to avoid sensor damage caused by out-of-range use.
The process installation joint thread specification must match the instrument (standard M20×1.5 external thread, supports customization of G1/2, G1/4, 1/4NPT, etc.).
Align the sensor probe rod with the installation thread and tighten evenly with an open-end wrench to ensure good sealing.
Install the bracket in a location with good signal coverage; for weak signal areas, prioritize external split antennas.
After installation, verify initial data readings through the cloud platform or on-site LCD and set reasonable alarm thresholds.
The instrument supports customized installation methods, and engineering teams can select the optimal bracket or protection configuration according to on-site conditions. The battery is designed for on-site replacement. It is recommended that engineering companies establish a regular power check system and plan maintenance windows in combination with the project cycle.
Selection and Procurement Considerations
Technical procurement and project leaders are advised to focus on the following aspects when selecting:
Select standard or high-precision versions according to the degree of on-site environmental corrosion and precision requirements, and whether high/low temperature customization is needed.
For remote or poor signal coverage areas, prioritize external split antennas and large-capacity batteries (19000mAh).
For large-volume projects, specify housing color and thread specifications in advance to optimize delivery consistency.
Verify the compatibility of cloud platform data interfaces in combination with upper system protocol requirements.
These factors help engineering companies control total cost of ownership while ensuring high matching between temperature and humidity monitoring nodes and the overall IoT architecture.
FAQ
Q1. What are the integration advantages of 4G/Cat1 transmission compared with traditional wired solutions when deploying YD-221WA4 in remote sites such as oil fields or natural gas stations?
4G/Cat1 directly utilizes operator networks without the need for additional cable laying or relay equipment deployment, significantly reducing civil engineering and wiring costs. Within signal coverage areas, data can be uploaded to the cloud in real time, supporting remote configuration of sampling frequency and alarm thresholds, suitable for rapid deployment and later expansion of distributed wellheads or pipeline network monitoring points.
Q2. How to select the accuracy grade according to process requirements in engineering projects and balance cost with measurement requirements?
0.5%FS is suitable for general environmental monitoring scenarios, while 0.25%FS or 0.1%FS is suitable for precision control links sensitive to humidity fluctuations. During procurement, it is recommended to evaluate based on process control tolerance and project budget. Although high-precision versions have slightly higher initial costs, they can reduce process adjustments or verification workload caused by data deviations.
Q3. What is the actual impact of the large-capacity battery option on the on-site maintenance cycle?
The 9900mAh version is suitable for medium sampling frequency scenarios, and the 19000mAh version can further extend operating time and reduce annual maintenance frequency. For engineering companies with limited operation and maintenance resources, this directly translates into lower vehicle scheduling and labor costs, while reducing the risk of data loss caused by battery depletion.
Q4. What problems may arise from mismatched thread specifications or improper sealing during installation, and how to avoid them?
Mismatched threads can cause installation difficulties or sealing failure, leading to medium leakage or sensor contamination. It is recommended to specify the process interface specifications at the ordering stage and use matching sealing parts. After installation, verify initial readings through dual on-site display and cloud platform; if abnormal fluctuations occur, check connection tightness in time.
Q5. How does the cloud platform's multi-level permission management and data storage function support multi-party collaborative project management?
Project leaders can set different permissions for integrators, operation and maintenance teams, and owners to achieve hierarchical control of data viewing, alarm handling, and report export. Historical data storage and query functions facilitate the generation of phased project reports to meet internal audit or external compliance requirements and improve cross-team collaboration efficiency.
Q6. How is the instrument stability guaranteed in industrial environments with strong vibration or electromagnetic interference?
The instrument vibration performance complies with IEC 60068-2-6-2007 standards, and electromagnetic compatibility meets GB/T17626.2/4-2006 requirements. The 316L probe rod and integrated design further enhance anti-interference capabilities. During actual deployment, it is recommended to assess whether additional protective brackets or installation position optimization are needed based on on-site vibration levels.
Summary
Nexisense YD-221WA4-4G/Cat1 wireless temperature and humidity transmitter provides an efficient and reliable edge solution for industrial environmental monitoring with its wide-range measurement, flexible precision configuration, low-power wireless transmission, and cloud platform remote management features. Its 316L material and battery-powered design are particularly suitable for oil fields, natural gas, water conservancy and hydropower scenarios with limited power and wiring, helping system integrators and engineering companies simplify deployment, reduce operation and maintenance burden, and improve data availability.
Through standardized selection, installation, and platform configuration, this product can be effectively integrated into various IoT monitoring architectures. If you need technical matching, customized solution discussion, or bulk procurement support for specific project conditions, please feel free to contact the Nexisense professional team to provide targeted product configuration and integration consulting services.
