TBSL1/RFB-WIFI

Multi-sensors Wi-Fi RTU

The TBSL1/RFB-WIFI is a multi-sensor Remote Telemetry Unit (RTU) designed for applications requiring local or infrastructure-based wireless communication via Wi-Fi. It supports multiple sensor interfaces and low-power operation, making it suitable for environmental monitoring, building automation, smart facilities, and industrial IoT applications.

Datasheet

Features

Key capabilities and advantages

▼

2.4 GHz Wi-Fi connectivity compliant with IEEE 802.11 b/g/n.
Supports MQTT(S) communication protocol.
Multi-sensor support: SDI-12, analog, and pulse inputs.
Ultra-low idle current for extended battery life.
Internal flash memory for measurement data storage.
Real-time clock with NTP synchronization.
Easy configuration via USB interface.
Rechargeable battery with external solar panel support.
Rugged IP67 aluminium housing for outdoor and industrial use.

Specification

Technical specifications and parameters

▼

Frequency band	2.4 GHz
Frequency range	2.412 – 2.484 GHz.
Standards	IEEE 802.11 b / g / n.
Protocols	MQTT(S).
Supported sensor types	Multi.
SDI-12	v1.4.
Analog inputs	2 × configurable inputs/Voltage: 0–2.5 V/Current: 4–20 mA.
Pulse input	1 × input/Voltage: 0–3 V/Maximum frequency: 1 Hz.
Sensor connectors	2 × LLT-M14BMC07 and SDI-12 / analog / pulse signals multiplexed.
Power source	Rechargeable battery and external solar panel.
Solar panel MPP voltage	5 V.
Solar panel power	2–5 W.
Idle current	400 µA.
Battery type	1 × 3.7 V Li-ion or Li-Po battery/With safety PCB and 10k NTC.
Battery connector	JST B3B-XH-A(LF)(SN).
Solar panel connector	1 × LLT-M14BMC05.
Configuration interface	USB.
Configuration port	USB-B.
Measurement storage	128 Mbits embedded flash.
Real-time retained	Yes.
Real-time synchronization	NTP server.
Protection	Waterproof
Material	Aluminium.
Ingress protection	IP67.
Housing details	SP-AG-FA3-1 family. Single-piece gasket. TNC antenna connector. Gore-Tex vent. IP67 circular panel connector.