testo Saveris 2-H2 Wireless Temperature & Humidity Data Logger

Overview

The testo Saveris 2-H2 is a certified wireless temperature and humidity data logger engineered for continuous, unattended environmental monitoring in regulated and non-regulated settings. Operating on the principle of digital sensor signal acquisition via integrated Pt1000 and capacitive humidity sensing elements — with optional external probe support — it delivers traceable, time-synchronized measurements compliant with core requirements of ISO 17025, EU GDP Annex 9, and USP for storage condition validation. Its architecture centers on secure, standards-based communication: measurement data is transmitted over enterprise-grade Wi-Fi using MQTT protocol and SNTP time synchronization, ensuring temporal integrity across distributed installations. The device functions as a node within the testo Saveris 2 cloud ecosystem — a validated, server-hosted platform that serves as both configuration engine and long-term data repository. Unlike standalone loggers, the Saveris 2-H2 requires no local server infrastructure, eliminating on-site IT maintenance while maintaining full data sovereignty through configurable user permissions and encrypted TLS 1.2+ transmission.

Key Features

• Integrated high-contrast LCD display showing real-time temperature, relative humidity, battery status, and limit violation indicators
• Dual-channel internal measurement (temperature + humidity) plus one dedicated external probe interface (Pt1000 or capacitive RH sensor)
• Robust IP54-rated enclosure suitable for warehouse, cold room, cleanroom, and laboratory ambient conditions (–30 °C to +50 °C operating range)
• Configurable measurement and transmission intervals: 1 minute to 24 hours (Advanced cloud license required for sub-15-minute intervals)
• Secure Wi-Fi connectivity supporting WPA2 Enterprise authentication and certificate-based encryption for compliance with corporate network policies
• Battery-powered operation (4 × AA cells) with typical 24-month service life under standard conditions; field-replaceable without tools
• Local memory capacity of 20,000 total readings (10,000 per channel), preventing data loss during temporary WLAN outages

Sample Compatibility & Compliance

The testo Saveris 2-H2 is designed for non-invasive, ambient air monitoring — not direct product contact or process stream insertion. It meets mechanical and environmental requirements for deployment in pharmaceutical cold chain storage (2–8 °C, –15 to –25 °C frozen zones), food distribution centers, archival repositories, and HVAC validation studies. Its firmware and cloud architecture support ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available) and are structured to facilitate FDA 21 CFR Part 11 compliance when deployed with Advanced cloud licensing (audit trail, electronic signatures, role-based access control). Calibration certificates per ISO/IEC 17025 are available upon request; all devices ship with factory calibration report (DIN EN ISO 9001 traceable).

Software & Data Management

Data management occurs exclusively via the testo Saveris Cloud — a web-based, multi-tenant platform accessible from any modern browser or native iOS/Android application. Configuration (sensor limits, notification rules, device naming) is performed remotely without physical access. The Basic license provides free 3-month cloud storage, email alerts, manual PDF/CSV export, and single-user access. The Advanced license enables 24-month retention, automated report generation (scheduled PDF/CSV), SMS alerting, RESTful API integration for ERP/LIMS systems, and up to 10 concurrent users with granular permission sets. All cloud interactions log timestamped actions for audit purposes. No local database installation or software updates are required — version control and security patches are managed centrally by testo.

Applications

• Pharmaceutical warehouse temperature mapping and continuous monitoring per EU GDP and WHO TRS 961
• Validation and routine monitoring of refrigerated transport staging areas and cold rooms
• Environmental qualification of stability chambers and incubators
• Compliance-driven monitoring in food processing facilities subject to HACCP and IFS Logistics
• Long-term climate logging in museums, libraries, and data centers where thermal/hygrometric drift affects asset integrity
• Multi-site facility management with centralized oversight across geographically dispersed locations

FAQ

Is the testo Saveris 2-H2 compliant with FDA 21 CFR Part 11?
Yes — when deployed with the Advanced cloud license and configured with enabled audit trail, electronic signature, and user role management features.
Can the device operate without cloud connectivity?
Yes — it continues logging locally (up to 20,000 values) during WLAN outages and synchronizes data once connectivity resumes.
What external probes are compatible with the Saveris 2-H2?
Any testo Pt1000 temperature probe or capacitive humidity probe with 3.5 mm mini-jack connector (e.g., testo 0563 0423, 0563 0523).
Does the device support NIST-traceable calibration?
Factory calibration is traceable to national standards (DIN EN ISO 9001); accredited calibration certificates per ISO/IEC 17025 are available as an optional service.
How is time synchronization maintained across multiple loggers?
All units perform SNTP-based time synchronization with the testo cloud server at each successful data transmission, ensuring cross-device temporal consistency within ±1 second.