Description
The 56-TR72A2 is TandD’s WiFi-connected temperature and humidity logger — it connects directly to your WiFi network and automatically uploads measurement data via encrypted HTTPS to the T&D WebStorage cloud. No separate base unit is required.
An external T/RH probe on a cable is included. The measuring range of 0–55 °C and 10–95 %RH covers most indoor environments. Advanced WPA2-Enterprise support (IEEE 802.1X with EAP-TLS/PEAP) makes the device compatible with corporate networks. Email + push notification alerts are configured directly in the web interface of the T&D WebStorage Service.
Features
- External T/RH probe on cable (included)
- Temperature measuring range: 0 to +55 °C
- Humidity measuring range: 10 to 95 %RH
- Accuracy ±0.5 °C / ±5 %RH (at 25 °C, 50 %RH)
- WiFi 802.11 b/g/n (2.4 GHz) with WPA-PSK/WPA2-PSK/WPA2-Enterprise
- HTTPS for secure data upload
- 30,000 data point memory (combined temp + RH)
- 15 fixed logging intervals: 1–60 sec or 1–60 min
- 15 selectable upload intervals: 1 min to 24 hours
- Bluetooth 4.2 BLE for configuration via T&D Thermo app
- USB 2.0 Mini-B for PC connection
- Email alerts via T&D WebStorage Service
- LCD displaying current values + Max/Min
Specification
| Measurement channels | Temperature 1 channel (thermistor) + Humidity 1 channel (polymer) — external, on cable |
|---|---|
| Measurement range | 0 to +55 °C / 10 to 95 %RH |
| Accuracy | ±0.5 °C / ±5 %RH (at 25 °C, 50 %RH) |
| Resolution | 0.1 °C / 1 %RH |
| Response time (90 %) | approx. 7 minutes |
| Logging capacity | 30,000 data points |
| WiFi | IEEE 802.11 b/g/n (2.4 GHz) |
| Security | WPA-PSK / WPA2-PSK / WPA2-Enterprise, WPS 2.0 |
| Protocols | HTTP, HTTPS, SNTP, DHCP, DNS |
| Other interfaces | Bluetooth 4.2 BLE, USB 2.0 Mini-B |
| Power supply | 2 × AA alkaline LR6, 2 × AA Ni-MH, USB bus, AC adapter 56-AD-05A2/C2 |
| Battery life | approx. 5 days (at 1 min logging interval) |
Applications
The 56-TR72A2 is suitable for T/RH monitoring in environments with WiFi access: offices, data centers, laboratories, retail stores, food storage, museums/archives, greenhouses, and wine cellars. For 2-channel temperature measurement without RH, see 56-TR71A2. For high precision (±2.5 %RH), see 56-TR72A2-S. For wired Ethernet, see 56-TR-72NW.
