Junray ZR-F02G Portable 5-Parameter Weather Station

Overview

The Junray ZR-F02G Portable 5-Parameter Weather Station is an integrated environmental monitoring instrument engineered for field-deployable, real-time acquisition of five core meteorological parameters: wind speed, wind direction, ambient temperature, relative humidity, and atmospheric pressure. Unlike traditional anemometer-and-thermohygrometer assemblies, the ZR-F02G employs a unified ultrasonic transducer array for contactless, moving-part-free wind measurement—eliminating mechanical wear and enabling high-frequency sampling (up to 1 Hz) with minimal maintenance. Temperature and humidity are acquired via calibrated thermistor and polymer capacitive sensors, respectively, while barometric pressure is measured using a temperature-compensated piezoresistive MEMS transducer. The device operates on low-power DC input (12 V) and supports continuous logging over extended periods via internal non-volatile memory or external SD card storage. Its primary engineering objective is to support regulatory-compliant ambient characterization in fugitive emission assessments, emergency response scenarios, and mobile air quality monitoring campaigns—particularly where rapid deployment, spatial flexibility, and traceable metrology are required.

Key Features

• Compact, ruggedized aluminum alloy housing (IP65-rated enclosure) designed for outdoor operation across −20 °C to +50 °C ambient range
• Ultrasonic wind sensor with no moving parts: immunity to icing, dust accumulation, and mechanical hysteresis; directional accuracy ±3°, speed resolution 0.1 m/s
• Integrated temperature/humidity probe with NIST-traceable calibration certificate (optional); humidity hysteresis <1 %RH over full range (10–95 %RH)
• Barometric pressure measurement range: 800–1100 hPa, long-term stability <0.1 hPa/month at constant temperature
• Onboard data logger with configurable sampling intervals (1 s to 60 min), timestamped UTC synchronization via optional GPS module
• RS485/Modbus RTU and USB-C interfaces for seamless integration into third-party SCADA or environmental management platforms

Sample Compatibility & Compliance

The ZR-F02G is validated for use in ambient air environments meeting Class II or III site classification per GB/T 35222–2017 (“Technical Specification for Meteorological Monitoring Equipment”). It satisfies metrological requirements outlined in JJF 1716–2018 (Calibration Specification for Portable Weather Stations) and supports compliance workflows under China’s HJ 972–2018 (“Technical Guidelines for Unorganized Emission Monitoring of Atmospheric Pollutants”). While not certified to IEC 61260 or ISO 16063 standards for laboratory-grade instrumentation, its performance envelope aligns with field-grade environmental monitoring applications governed by EPA Method TO-15 adjunct protocols and EU Directive 2008/50/EC Annex VI reference conditions. Data outputs are structured to meet GLP-aligned audit trail requirements when paired with Junray’s certified firmware version 2.3+.

Software & Data Management

The station ships with Junray’s proprietary PC-based configuration and analysis software (ZR-Studio v4.2), supporting real-time telemetry visualization, batch export in CSV/NetCDF formats, and automated QA/QC flagging based on user-defined thresholds (e.g., wind speed outliers, RH saturation events). Raw sensor outputs undergo onboard linearization and cross-sensitivity compensation—temperature drift correction applied to humidity and pressure channels in real time. For enterprise deployment, the device is compatible with MQTT and HTTP POST protocols, enabling direct ingestion into cloud platforms such as ThingsBoard or custom LIMS architectures. All firmware updates are digitally signed and require hardware authentication, satisfying basic cybersecurity hygiene expectations for field instruments operating in regulated environments.

Applications

• Fugitive emission source attribution: quantifying wind vector statistics during stackless VOC or PM monitoring at industrial perimeters
• Emergency response triage: rapid siting of dispersion modeling inputs following chemical release incidents
• Mobile ambient air quality surveys: co-located deployment with particulate or gas analyzers to contextualize concentration gradients
• Calibration validation support: providing reference-grade meteorological baselines for fixed-site network intercomparison studies
• Educational and research fieldwork: low-cost, transportable platform for undergraduate atmospheric science labs and citizen science initiatives

FAQ

Is the ZR-F02G suitable for permanent outdoor installation?
Yes—its IP65-rated enclosure and wide operating temperature range permit unattended deployment for up to 12 months; however, annual recalibration is recommended per JJF 1716–2018.
Does the device meet FDA or ISO 17025 requirements for accredited testing?
No—it is not accredited under ISO/IEC 17025, but its calibration traceability to national standards enables use as a supporting measurement tool in ISO 17025-accredited laboratories.
Can historical data be retrieved after power loss?
Yes—the internal flash memory retains logged data even during complete power interruption; last known settings persist in EEPROM.
What is the typical battery life when operating on external 12 V power with optional solar charging?
With a 20 Ah LiFePO₄ battery and 10 W solar panel under average insolation (4 kWh/m²/day), autonomy exceeds 30 days without sunlight.
Is Modbus TCP supported for Ethernet-based integration?
No—only Modbus RTU over RS485 is implemented; Ethernet connectivity requires an external protocol converter.