Adot4 Analog Datalogger

The Sanlien Adot4 Analog Datalogger is an analog datalogger with LTE-M wireless transmission technologies for seamless remote data collection in geotechnical applications. Ideal for automated safety monitoring in civil engineering, water conservancy, construction and other fields, it supports analog signal measurement including voltage, current, resistance, and various thermometers.
Built with a durable waterproof enclosure and low-power design, the Adot4 ensures accurate and continuous data acquisition even in harsh environments. Its built-in storage enables comprehensive long-term analysis and ensures no critical data is lost.

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Datasheet Manual

Product information:

Applications

Tilt monitoring ‒ MEMS Tiltmeters
Water level monitoring ‒ 4-20 mA Transducers
Load monitoring ‒ Full Wheatstone Bridge Load Cells
Displacement monitoring ‒ Potentiometers
Crack monitoring ‒ Potentiometers
Temperature monitoring ‒ RTD / PT100 / 3K thermistors measurement

Key Features

Real-time monitoring enabled via LTE-M wireless transmission and dot cloud integration
Supports MQTT protocol for versatile data acquisition and integration
Low-power consumption
Robust and waterproof enclosure
Data uploads to the dot cloud via simple Micro SD card setup
Built-in 32 GB Micro SD card stores over 1 million data records

Technical Specifications

Measurement Type: Analog sensor
ADC: 24-bit resolution
Channel: 4
Differential Voltage measurement: ±10 V
Single-Ended Voltage measurement: 0-5 V
Current Loop measurement: 4-20 mA
Wheatstone Bridge measurement: Full Wheatstone Bridge
Temperature measurement: RTD / PT100 / 3K Thermistors
Power Output: 5 V/130 mA or 12 V/130 mA
LPWAN: LTE-M
Network Protocol: MQTT
Storage: 32 GB Micro SD Card (expandable)
Power Supply: 18650 Li-ion battery x4 (Supports 5‒18 Vdc charging via solar panel or external source)
Power Consumption: up to 6 months (RSSI <15) to 12 months (RSSI ≥15) with hourly measurement
Dimension (L x W x H): 160 x 160 x 70 mm (excluding antenna)