Description
WiFi data logger testo Saveris 2-T2: Temperature Monitoring with External Probes and Door Contact
The testo Saveris 2-T2 WiFi data logger is designed for automated temperature monitoring in warehouses, production facilities, and cold storage rooms. Temperature is measured using connectable external NTC temperature probes, and it is also possible to connect a door contact (optional).
The measured values are stored in the logger’s internal memory and transmitted to the Testo Cloud storage via an existing WiFi network. This allows for remote access to the data from any Internet-connected device.
System Features and Functionality
- Two Connectors: The logger is equipped with two connectors for connecting external NTC temperature probes or door contacts.
- Alerts: Alarm function for limit violations, sent via e-mail or optionally via SMS.
- Configurable Interval: The measurement interval can be freely configured from 5 s to 24 h.
- Ease of Use: Easy installation and commissioning, requiring no special technical skills.
- API Access: Thanks to API access (optional), it is possible to export measurement data to your own system.
- Indication: Current measured values, limit violations, and remaining battery life are displayed on the logger’s screen.
- Compliance: The testo Saveris 2-T2 WiFi loggers comply with the EN 12830 standard.
Technical Details
- Memory: Internal memory – 10,000 readings per measurement channel (2 x 10,000 total).
- Power Supply: Standard AA batteries have a service life of 24 months. Batteries can be replaced by the user.
- Protection Class: The housing has an IP65 protection rating.
Technical Data (Order Number 0572 2032)
Temperature Measurement (NTC sensor)
| Measuring Range: | -50 … +150 °C |
| Accuracy: | ±0.3 °C |
| Resolution: | 0.1 °C |
General Technical Data and Communication
| Weight: | 240 g |
| Dimensions: | 95 x 75 x 30.5 mm |
| Operating Temperature: | -30 … +50 °C |
| Storage Temperature: | -40 … +70 °C (without batteries) |
| Protection Class: | IP65 |
| Standards: | DIN EN 12830 |
| Door Contact Probe: | Yes |
| External Connector: | External temperature sensor |
| Power Supply: | 4 AA AlMn batteries; power supply unit available separately; for t < -10 °C, Energizer 0515 0572 batteries are used |
| Battery Life (+25 °C, 15 min cycle): | 12 months (typical value) |
| Memory: | 10,000 readings/channel |
| Measurement Frequency (Basic Cloud): | 15 min … 24 h |
| Measurement Frequency (Advanced Cloud): | 1 min … 24 h |
| Transmission Rate (Basic Cloud): | 15 min … 24 h |
| Transmission Rate (Advanced Cloud): | 1 min … 24 h |
| Wireless Connection: | Signal transmission: 2.4 GHz; Protocols: MQTT, SNTP |
| Encryption Support: | No encryption, WEP, WPA, WPA2, WPA2 Enterprise |





