Description
The 56-RTR500BM is TandD’s mobile base station, designed for locations without a PC or fixed internet connection — refrigeration facilities, transport, field measurements, remote sites, and construction sites. Insert a nano-SIM with 4G data, register your wireless loggers via the mobile app, and the system will begin collecting data and reporting alarms completely independently.
Measurement data is collected wirelessly from up to 20 TandD loggers (RTR501B-507B + RTR-574/576) and transmitted via an encrypted HTTPS connection over the LTE network directly to the T&D WebStorage Service cloud (free). From there, you can access your values from any web browser, mobile phone, or tablet — globally, regardless of where the base station is located. When a threshold is exceeded, notifications are sent immediately via email (up to 4 recipients), SMS (up to 4 recipients), and/or an external relay output for connecting a lamp, buzzer, or PLC.
Features
- Mobile 4G/LTE base station — no PC or fixed internet required
- Collects wirelessly from up to 20 loggers per base unit
- Wireless range approx. 150 meters line of sight — EU model 869.7–870 MHz, RF power 5 mW
- Extend range via up to 5 repeaters per group × 4 groups
- Automatic data transfer to the T&D WebStorage Service cloud via HTTPS
- Three alarm channels: email (4 recipients), SMS (4 recipients), and external relay output for on-site alarms with a lamp or buzzer
- Monitors threshold limits, sensor faults, communication errors, low battery, and external contact input
- Settings via the mobile app T&D 500B Utility (Bluetooth 4.2 BLE) or USB connection to PC
- Remote configuration via the cloud — change settings without visiting the base station
- GPS output (SMA Female, 3.3 V) for position data to measurement values — GPS antenna sold separately
- Powered by the included AC adapter (or 4 × AA batteries as backup, approx. 2 days of operation)
Specification
| Compatible loggers | 56-RTR501B/502B/503B/505B/507B incl. L models, 56-RTR-574/576 incl. S models, as well as discontinued RTR-501/502/503/505/507S and RTR-500 |
|---|---|
| Max number of registrations | 20 remote units + 5 repeaters × 4 groups |
| Wireless communication | EU model: 869.7–870 MHz, RF power 5 mW, range approx. 150 m line of sight |
| LTE bands (EU) | LTE-FDD: B1/B3/B5/B7/B8/B20, LTE-TDD: B38/B40/B41, WCDMA: B1/B5/B8, GSM: 900/1800 MHz |
| Other interfaces | Bluetooth 4.2 BLE (for settings), USB 2.0 Mini-B (for settings), optical communication |
| Download time | Approx. 2 minutes for 16,000 data points wirelessly (+30 sec per repeater in the chain) |
| Alarm output (contact) | Photo MOS relay, AC/DC ≤50 V, current ≤0.1 A, ON resistance 35 Ω — requires cable 56-AC0101 (sold separately) |
| Alarm input (contact) | 3 V internal pull-up 100 kΩ, max 30 V — requires cable 56-AC0101 |
| Communication protocols | HTTP, HTTPS, FTP, SNTP, SMS, DNS |
| Power supply | 4 × AA alkaline LR6, AC adapter 56-AD-05A3 or 56-AD-05C1 (included), or external DC 9–38 V via 56-BC-0204 |
| Battery life (AA only) | Approx. 2 days (one logger, no repeater, one daily download, value report every 10 min) |
| Dimensions | 96 × 66 × 38.6 mm (excl. antenna) — antenna length 135 mm × 2 (cellular + local) |
| Weight | Approx. 135 g |
| Operating environment | -10 to +60 °C, max 90 % RH non-condensing |
| SIM card | nano-SIM supporting 4G/LTE data communication (min. 200 Kbps) — sold separately from your mobile operator |
Included
- 56-RTR500BM base unit
- 4 × AA alkaline batteries (LR6)
- 2 × Antenna 56-CSR-0011 (cellular + local, 135 mm each)
- USB Mini-B cable 56-US-15C
- AC adapter 56-AD-05A3 or 56-AD-05C1 (EU version)
- Registration code label for T&D WebStorage Service
- Manual set with warranty certificate
Software and apps — all free
- T&D 500B Utility — iOS / Android, for Bluetooth configuration and remote settings via the cloud
- RTR500BM for Windows — PC software for advanced settings and SMS receiver management
- T&D WebStorage Service — cloud storage, multi-device access, email alerts
- T&D Graph — Windows, advanced graph analysis of collected data
- Communication DLL + XML format — free documentation for integration with your own system
Applications
The 56-RTR500BM is built for locations where the 56-RTR500BC (USB to PC) and 56-RTR500BW (Ethernet/LAN) do not work: refrigerated trucks and transport, construction sites, field measurements, remote facilities in the food industry, greenhouses, farm buildings, remote laboratories, and wine cellars. The SMS alert channel is particularly valuable in environments where email notifications may be missed (e.g., weekends at unattended facilities). With an external relay output, the base unit can also control on-site alarms — connect a buzzer, strobe light, or PLC for immediate local warning.

