The Digital Data Logger is a robust, low-power, long-battery life device that connects to a wide catalog of digital sensors, streaming data wirelessly to your information systems.

RS-485 port

Compatible with Modbus RTU and other proprietary protocols (G6 only).

Sensor compatibility

Integrates seamlessly with leading manufacturers to support complex geotechnical chains (IPIs, MPBX), structural monitoring (load cells, settlement systems), and environmental sensors (weather stations, water quality probes).

Mobile app configuration

Advanced device management through mobile app for auto-setup, voltage threshold setup and addresses configuration.

Integrated TDR (Time Domain Reflectometer)

Features a built-in TDR. Combined with coaxial cables, it detects ground movement and soil fractures for mining and geotechnical monitoring (G7 only).

Versatile ports

Features a dual-protocol digital port (SDI-12) and a high-accuracy Pulse Counter to connect a wide array of sensors, including inclinometers, extensometers, weather stations, and flow meters (G7 only).

Digital Data Logger main technical specifications

G6 Digital Data Logger

Input types
RS485 full or half duplex supported
Output power
Regulated 12 V DC up to 200 mA in continuous operation. Maximum startup current peak of 1.5 A, up to 50 ms
Supported protocols
Modbus RTU and proprietary protocols

G7 Digital Data Logger

Ports
- SDI-12 x1
- Pulse counter x1
- TDR x1
Secondary sensors
- Barometer
- Motion detection sensor
- Temperature sensor
- Humidity sensor
Operational modes
- Periodic Mode
- Triggered Measurements Mode (TMM)
Power source
Battery supplied: 3.6V D-size user– replacable high energy density batteries (recommended Saft LSH20)
Operating temperature
−40 °C to 80 °C
Weather protection
IP68 (at 2 m for 2 h)
Device configuration
- Worldsensing App
- CMT Cloud
- CMT Edge

G7 Digital Data Logger features

In addition to periodic readings, the G7 Digital Data Logger one-channel comes with advanced operational modes that help you optimize workflows, extend battery life, and reduce the number of devices required in the field.

New

Triggered Measurements mode

The G7 Digital Data Logger motion detection sensor detects activity events from variations in absolute angle, angular velocity, or acceleration. When a significant movement is detected, it triggers the primary sensor to capture detailed measurements, exactly when you need them.

You can customize when and how many measurements are taken (on event, after event, both, or across multiple events) and set delays and cooldown periods to match your monitoring needs.

This intelligent mode reduces unnecessary data transmission, keeps battery consumption low, and focuses on the movements that matter most, giving you actionable insights without overloading your system.

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Integrations

Experience a seamless connect-and-collect process with our extensive catalog of integrated digital sensors from leading geotechnical, geospatial, environmental and process sensor manufacturers.

View full list of integrations

Digital Data Logger mounting options

Explore our range of versatile mounting plate accessories, designed to securely fix your device according to the requirements of any project.

Pole mounting

Using the WS-ACC-POLE-PL8 aluminum plate for pole mounting together with either WS-ACC-U35 35 mm u-bolts or WS-ACC-U50, 50 mm u-bolt.

Wall mounting

Using the LS-ACC-MEC-MP external mounting brackets for wall mounting (set of 2 for LS-G6-DIG-2, set of 4 for LSG7DIG-1XLO).

Horizontal and vertical surface mounting

Using the LS-ACC-IN15-HP versatile plate. Only available for the G7 Digital Data Logger.

Magnetic fix to structures

Using the LS-ACC-G7-VP mounting plate. Can be combined with magnets (LS-ACC-MAG). Only available for the G7 Digital Data Logger.

For a full list of available accessories, check out the

Digital Logger product datasheet 

Applications

Explore the wide range of monitoring solutions the Digital Data Logger enables across geotechnical, structural and environmental monitoring.

Geotechnical Monitoring

Structural Monitoring

Environmental Monitoring

Remote Process Monitoring

In-ground vertical and lateral displacement and deformations

ShapeArray In-place inclinometer

In-place inclinometers (IPIs) are positioned at fixed locations in the inclinometer borehole for  continuous monitoring. Connect ShapeArrays and IPIs to wirelessly transmit data using the Digital Data Logger or the broadband Thread X3 for longer chains.
Up to 200 segments of ShapeArray using the Digital Data Logger and up to 300 segments using the Thread X3.

 

In-ground displacement between anchors within a borehole

Multi-point piezometer Multi-point borehole extensometer

Leverage compatibility with all major manufacturers of multi-point extensometers (MPBX) and in-place extensometers (IPX). Connect any vibrating wire, potentiometer, or analog displacement sensors installed in the head of the extensometer to the appropriate data logger. Digital MPBXs allow for reading more points with a single Digital data logger and enable the connection of more than one MPBX to the node.

If higher spatial resolution is needed, a chain of in-place extensometers can be installed in the borehole and connected to a Digital data logger.

Stress changes in rock

Hollow inclusion (HI) cell

The Digital data logger can be utilized to read and transmit the 3-D stress measurements from HID cells via a digital converter.

Pore water pressure & level

Piezometer Multi-point piezometer

Connect piezometers and multi-point piezometers from all the major geotechnical sensor manufacturers. Use 1-channel, 2-channel or 6-channel Vibrating Wire data loggers to transmit data from any number of sensor configurations. Water level sensors can be connected through Analog or Digital data loggers.

Soil water tension & moisture

Tensiometer Soil moisture sensor Granular matrix sensor

Assess soil water tension and moisture with a tensiometer and a granular matrix sensor both connected to an Analog data logger. Additionally, measure volumetric water content with a soil moisture sensor connected to a Piconode. You can also connect the Digital date logger to one or a chain of digital tensiometers.

Loads & movement in beadings and joints

Pressure transducer Crackmeter Extensometer

Monitor the pot bearing pressure and displacement through pressure sensors, extensometers or crackmeters. Control the joint expansions and contractions wirelessly connecting these sensors to Analog, Digital or Vibrating Wire data loggers.

Comprehensive weather parameters

Weather station Weather transmitter

Compatibility with major weather transmitter manufacturers via digital interface. Monitor precipitation, air temperature and other weather parameters using a weather transmitter connected to a Digital data logger or a ThreadX3. Multiple configurations readily available to stream the right data to your information systems.

Dewatering operations

Flow meter Variable frequency drive Protection system

Control motor and pump protection systems connecting them to the Digital data logger. Monitor water flow and performance in dewatering operations with a Variable Frequency Drive (VDF) and a flowmeter connected to a ThreadX3.

In-ground horizontal movements over the profile of the hole

Multi-point borehole extensometer In-place extensometer

Leverage compatibility with all major manufacturers of multi-point extensometers (MPBX) and in-place extensometers (IPX). Connect any vibrating wire, potentiometer, or analog displacement sensors installed in the head of the extensometer to the appropriate data logger. Digital MPBXs allow for reading more points with a single Digital data logger and enable the connection of more than one MPBX to the node.

Water quality

Multi-parameter probe

Analyze the quality of water with a water multi-parameter probe connected to a Digital data logger or a ThreadX3.

Settlement & heave

Tiltmeter Liquid settlement system Tilt beam

Monitor settlement, heave and building response to tunneling and excavation with a liquid level settlement system connected to the Analog or the Digital data logger. Alternatively, you can use the Tiltmeter attached to a rigid beam and installed in a chain.

Load in rock bolts, cable bolts & ground anchors

Load cell

Ensure the proper functionality of anchor systems (active and passive) by monitoring in a representative sample the load throughout their lifecycle including the load tests and stressing works. Stream data wirelessly from most of the load cells based on resistive strain gauges available in the market using the Piconode data logger. The 6-channel Vibrating Wire and the Digital data loggers can also be suitable, depending on the type of load cell.

Frequently asked questions

What is a Digital Data Logger?

The Digital Data Logger is a wireless data acquisition IoT device that collects data from digital sensors using RS-485 ModBus RTU communications or proprietary protocols and transmits them using long-range, low power radio communications.

How does the Digital Data Logger work?

The Digital Data Logger operates by connecting one or a string of digital sensors to the RS-485 port. It transmits data via Worldsensing LoRa networks to CMT Edge for local-access, single-network deployments. Data can also be transmitted via the internet from the gateway to CMT Cloud for a multi-project, multi network deployment.

What is the maximum data collection interval?

Devices can be configured with various reporting periods. The maximum interval for data collection is one sample every 24 hours. At this rate, the system can operate for an extended period, typically between 7 and 10 years.

What is the communication range for the data logger?

The radio range of any of Loadsensing devices varies depending on the environment. In open sight, the range can reach up to 15 km (9.3 mi), while in a city street it is up to 4 km (2.5 mi). When placed in a manhole in a city street, the range is up to 2 km (1.2 mi), and in a tunnel, it extends up to 4 km (2.5 mi).

What are the maintenance and troubleshooting requirements for the product? Can it be handled internally by the in-house team?

Maintenance is straightforward and varies by location. With basic training, employees can configure and maintain the devices and gateway via the Worldsensing App. Monthly visual inspections are recommended, especially in active areas. Inspect devices and sensor cables if you notice anomalous or missing readings. Our remote management software reduces manual checks by allowing 24/7 access to network status and sending downtime alerts. Batteries can last up to 10 years, but it’s best to schedule changes based on battery life estimates and data acquisition frequency.

How is data protected during transmission?

Data protection and privacy are achieved through 128 AES [Advanced Encryption Standard] encryption on multiple levels, for all data being sent from the sensors to the application server and back.

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