testo WLAN Communication Module for testo 150 Data Logger
| Brand | testo |
|---|---|
| Origin | Germany |
| Model | 0554 9320 |
| Communication Interface | IEEE 802.11 b/g/n (2.4 GHz) |
| Security Protocol | WPA2-PSK, TLS 1.2 |
| Operating Temperature | 0–50 °C |
| Humidity Range | 10–90 % RH non-condensing |
| Certifications | CE, FCC, IC, RCM |
| Integration | Plug-and-play with testo 150 modular system |
| Channel Capacity | Supports multi-channel environmental monitoring (temperature, humidity, CO₂, differential pressure, etc.) |
| Compliance | Designed for GxP environments |
Overview
The testo WLAN Communication Module (Model 0554 9320) is a certified, field-deployable wireless interface engineered to extend the connectivity capabilities of the testo 150 modular data logger platform. Designed and manufactured in Germany, this module enables secure, real-time transmission of calibrated environmental measurement data—including temperature, relative humidity, CO₂ concentration, differential pressure, and other parameters—via enterprise-grade IEEE 802.11 b/g/n Wi-Fi infrastructure. It operates as an integral component within the testo Saveris Pharma validated environmental monitoring system (EMS), supporting continuous, uninterrupted data acquisition across distributed sensor nodes in regulated pharmaceutical, biotech, and clinical laboratory settings. The module implements end-to-end encryption using WPA2-PSK authentication and TLS 1.2 secured HTTP(S) communication protocols, ensuring data integrity and confidentiality during transit. Its compact, DIN-rail mountable form factor and plug-and-play integration eliminate configuration overhead and reduce commissioning time without requiring firmware modification or external gateways.
Key Features
- Seamless interoperability with all testo 150 base units and expansion modules (e.g., temperature/humidity probes, CO₂ sensors, analog input modules)
- Native support for dual-band Wi-Fi (2.4 GHz only, compliant with legacy and modern enterprise WLAN deployments)
- Built-in watchdog timer and automatic reconnection logic to maintain uptime during network fluctuations
- Configurable data transmission intervals (1 s to 24 h) and alarm-triggered immediate upload capability
- Integrated diagnostic LED indicators for signal strength, connection status, and encryption handshake verification
- Robust industrial housing rated IP20, suitable for mounting in control cabinets, server rooms, and cleanroom utility corridors
- Firmware update support via secure HTTPS-based over-the-air (OTA) mechanism with digital signature validation
Sample Compatibility & Compliance
The module does not perform direct sample analysis but serves as a certified communication layer for validated environmental monitoring applications. It supports simultaneous data aggregation from up to 16 testo 150 channel modules per base unit, enabling multi-point, multi-parameter mapping of critical process environments. All connected sensors must be individually calibrated and traceable to national standards (e.g., DKD/DAkkS). The entire testo Saveris Pharma ecosystem—including this WLAN module—is pre-validated for compliance with EU Annex 15, WHO TRS 961, ISO 14644-1/3, and FDA Guidance for Industry: Environmental Monitoring of Aseptic Processing Facilities. When deployed with testo Saveris 2 cloud software, it satisfies 21 CFR Part 11 requirements for electronic records and signatures, including user access controls, immutable audit trails, and role-based permissions.
Software & Data Management
Data transmitted via the WLAN module is ingested directly into testo Saveris 2—a GxP-compliant, browser-based monitoring platform hosted on ISO 27001-certified infrastructure. The software provides automated alarm escalation (email/SMS), configurable limit deviation reporting, trend analysis with statistical process control (SPC) charts, and PDF/CSV export with embedded digital signatures. All data entries include timestamp, sensor ID, calibration status, and operator context. System-level audit trails record every configuration change, user login/logout event, and alarm acknowledgment—fully searchable and exportable for regulatory inspections. Integration with enterprise IT systems (e.g., Active Directory, LDAP, SIEM platforms) is supported via RESTful API and Syslog forwarding.
Applications
- Continuous temperature and humidity monitoring in cold chain storage (refrigerated warehouses, vaccine transport hubs)
- Real-time environmental surveillance of Grade A/B cleanrooms and isolators per ISO 14644-1 classification
- Stability chambers and accelerated aging studies compliant with ICH Q1 guidelines
- Pharmaceutical manufacturing suites requiring 21 CFR Part 11–compliant data governance
- Bioreactor and incubator ambient condition logging with alarm-driven intervention workflows
- Multi-site centralized monitoring across geographically dispersed facilities using unified Saveris 2 dashboards
FAQ
Is the testo WLAN Communication Module compatible with existing testo 150 installations?
Yes—it requires no hardware modification and functions with all testo 150 base units produced after 2018.
Does the module support WPA3 or enterprise WPA2-Enterprise (802.1X)?
No—only WPA2-PSK is supported; enterprise authentication requires deployment through an intermediate testo Saveris Gateway.
Can data be stored locally on the module if the WLAN connection fails?
No—the module acts exclusively as a communication bridge; local data buffering occurs on the testo 150 base unit’s internal memory (up to 2 million values).
Is the module suitable for use in explosion-hazardous areas?
No—it is not ATEX or IECEx certified and must be installed outside classified zones.
What is the maximum recommended distance between the module and the access point?
Up to 50 m indoors with line-of-sight; performance varies based on wall density, RF interference, and AP transmit power.
