testo Saveris 2-H2 - Wi-Fi data logger for the external temperature and humidity probe

Order-Nr.  0572 2035

  • Access to readings anywhere and with any device

  • Automated temperature and humidity monitoring with connectable probe

  • Alerting of violation of limit values by e-mail or SMS

  • Data transfer by wireless LAN

  • Automatic reading documentation

  • Free online data storage in the cloud

The testo Saveris 2-H2 Wi-Fi temperature and humidity logger will ensure that critical information is safe and always in reach. Through the testo Cloud, measurements are available anytime, anywhere, via an internet connected device, such as tablet, PC, or smartphone. Viewing your data is as simple as registering your data logger on your testo Cloud account.

This meter uses a sensor to start up.

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Product Description

The testo Saveris 2-H2 Wi-Fi data logger system is an easy, versatile, and secure solution for the measurement and monitoring of temperature and humidity. The system consists of at least one Wi-Fi data logger and a testo Cloud license (online data storage). As a component of this data logger system, the testo Saveris 2-H2 with connectable temperature and humidity probes, stores all measured temperature and humidity values, and transmits them directly by Wi-Fi to the testo Cloud. The measurement rate is freely adjustable from 1 minute to 24 hours. You can use the alarm function to receive immediate alarms by e-mail or SMS text message (optional), when user set limit values are exceeded.

Installation, readout, and analysis of Wi-Fi data loggers

The testo Saveris 2-H2 Wi-Fi data logger is easily installed. Select the appropriate testo Cloud license to fit your company’s needs, connect through your WLAN network, then log in to the testo Cloud to configure the logger and begin collecting measurements. Logger and system settings, alarm settings, and outputs are quickly set. Now relax, because Saveris 2 is on the job, and will alert you if a limit or problem is detected.

The logger itself displays current measurement values, alarm conditions, and remaining battery life. The standard batteries (AA) have a life expectancy of 24 months, and can be replaced as needed. The internal data storage of the Wi-Fi data logger has a capacity of 10,000 measurement values per channel/measurement type.

Note: This logger requires a connectable probe.


Delivery Scope

- testo Saveris 2-H2 Wi-Fi data logger
- Micro USB cable
- Wall bracket with lock
- Batteries (4 AA)
- Instruction manual
- Factory calibration document
General technical data


8 oz. / 240 g


4 x 3 x 1.2 in. / 95 x 75 x 30.5 mm

Operating temperature

-22° to 122 °F / -30 to +50 °C

Protection class


Measuring rate

Dependent on Cloud licence; Basic: 15 min … 24 h / Advanced: 1 min … 24 h

Door contact


Communication rate

Dependent on Cloud licence; Basic: 15 min … 24 h / Advanced: 1 min … 24 h

WLAN Connectivity

Signal transmission: wireless, frequency band: 2.4 GHz, supported wireless LAN standards: IEEE 802.11 b/g/n and IEEE 802.1X; Possible encryption methods: without encryption, WEP, WPA, WPA2, WPA2 Enterprise - The data loggers communicate via the standard protocol MQTT and are SNTP time synchronization-capable.

Connection external

External humidity/ temperature probes

Power supply

4 x AA AlMn batteries; mains unit optional; for temperatures below -10 °C please use Energizer batteries 0515 0572


10,000 measurement values / channel

Battery life

12 months (typical value, depending on the wireless LAN infrastructure) at +25 °C, 15-minute measuring cycle and standard communication cycle at -30 °C, 15-minute measuring cycle and standard communication cycle with Energizer batteries 0515 0572

Storage temperature

-40° to 158 °F (without batteries) / -40 to +70 °C (without batteries)

Humidity / Temperature Probe