Long Distance
Point-to-multipoint wireless telemetry (900MHz or 2.4GHz) for ranges up to 100km
Overview
The Canary Systems® MLRemote® is a point-to-multipoint programmable wireless datalogging system designed for demanding environments in the mining, geotechnical, structural, and civil markets.
The MLRemote is part of a system which consists of two components, the MLBase™ which serves as a base communications station, and one or more MLRemotes. Each network of MLRemotes communicate with a single MLBase. The widespread capability makes MLRemote a first choice for sites where assets consist of numerous types of instruments distributed over a large area for long-term monitoring. More information is available for the MLBase with details and system specifications here.
System Details
Use of proprietary push communication technology allows for extended battery life: up to 2 years with alkaline batteries or up to 4 months of operation without charging when equipped with a solar panel and lead acid battery.
An integrated serial port supports digital sensors including MDT Smart Link-485 and HART 4-20mA sensors, among others. A switched power connection also allows power management for connected peripherals. MLRemote contains 8MB flash memory of onboard storage allowing the system to collect data in harsh conditions and when communications are temporarily unavailable.
The system is installed in a sealed polycarbonate enclosure with IP66/NEMA 4x rating to ensure longevity and resistance to harsh environmental conditions.
Communications & Measurements
Use of a 900MHz spread-spectrum radio in the MLRemote provides for flexible network configurations. Optional radios are available to support global deployments. A range up to 100km (60 miles) is possible with the 900MHz radio when using gain antennas over ideal topography.
The MLRemote offers analog instrument inputs to support a variety of measurements, typically a dedicated vibrating wire and thermistor, and additional inputs for voltage and current measurements. Integrated inputs support 4-20mA, RS-232, RS-485 and SDI-12 sensors. The MLRemote supports pulse and switch closure measurements as well as external device control via digital input and outputs.
Integration & Data Visualization
Our software MLSuite® includes a web-based system configuration and management platform, MLWebHardware, which provides for communicating with each MLBase and managing and organizing all MLRemote communications. It can also serve as a virtual MLBase for certain applications. MLRemote also includes built-in programming and control capabilities via the intuitive MLBasic programming language for very flexible measurement and control applications. MLWeb offers a browser-based portal to review data collected by the MLRemote systems and output complex charts & reports.
Multi-Channel
Each MLRemote® can control a multiplexer with up to 10 channels
Web-Based Configuration
Simple web-based configuration and programming using our MLWebHardware platform
Specifications
Physical & Electrical
Physical |
|
| Operating Temperature | -40 to +60 °C -40 to +140 °F |
| Enclosure Dimensions (L x W x H) | 32 x 27 x 15 cm 12.6 x 10.7 x 5.9 in |
| Assembled Weight | 3.4 kg 7.6 lbs |
System Power |
|
| Battery | 12 V lead acid (4 months lifespan) or 8 D-cell alkaline (up to 2 years lifespan) |
Solar Panel |
|
| Output Voltage | Maximum 18 VDC (loaded) |
| Output Power | Maximum 2.4 A (40 W) |
Power Requirements |
|
| Typical | 5.1-15 VDC |
| Nominal | 12 VDC |
| Operating Current | <65 mA |
| Standby | <10 µA |
Inputs & Outputs
Analog Measurement Inputs |
|
| Inputs | Up to 5 VDC |
| Minimum Resolution | 14-bit |
Measurement Inputs |
|
| Vibrating Wire | |
| Thermistor | |
| Two digital counters | |
| -2.5 VDC to +5 VDC sensors | |
| 4-20 mA sensors | |
Vibrating Wire Input |
|
| Supports | Differential excitation and signal conditioning front-end |
| Adjustable Gain Range | 20–65 DB |
| Nominal Input Impedance Ranges | 90–180 Ω |
| Excitation Voltage | Minimum 5 V |
| Timing Resolution | Minimum 1 µS |
| Sampling Frequency | Minimum 16384 Hz |
Control Outputs |
|
| Switched Power | |
| Digital Outputs (2): | 5 VDC |
| Digital Output Maximum Current | 20 mA |
| Precision Output | 2.5 VDC |
| Precision Output Accuracy | <2.5 mV |
| Precision Output Maximum Current | 100 mA |
Data & Communications
Communications |
|
900 MHz RF Module | |
| Range | Up to 100 km (60 miles) with high-gain antenna |
2.4 GHz RF Module |
|
| Range | Up to 3.2 km (2 miles) |
Memory |
|
| Flash Memory | 8 MB |
| Data Storage | U to 250,000 arrays |
Serial Port | |
| Type | RS-232/RS-485 |
| Data Rate Range | 1200–115200 bps |
Options
MLMux5 Multiplexer |
|
| Channels | 5-channel for 4-wire instruments or 10-channel for 2-wire instruments (switch selectable) |
| Control Inputs | 1 or 2 |
| Control Input Tolerance | 5–12 V |
| Power | 4–16 VDC |
| Power Consumption | <0.1µA (quiescent) <10 mA (active) |
| Contact Resistance | <160 mΩ (typical) 240 mΩ (maximum) |
| Contact Isolation | 500 V |
| Relay Operate Time | ~2 ms |
| Relay Release Time | ~0.5 ms |
| Relay Max Voltage | 60 VAC, 60 VDC |
| Relay Max Switching | 2.5 A |
SDI-12 Converter
| Enclosure Type | Size (L x W x H) | Assembled Weight | Battery | Solar | Radio | Config | Antenna | Options | |
|---|---|---|---|---|---|---|---|---|---|
| MLRemote-O/Y-A-Q MLRemote5-O/Y-A-Q | Polycarbonate | 32 x 27 x 15 cm 12.6 x 10.7 x 5.9 in | 3.4 kg 7.6 lbs | Alkaline | N/A | 900MHz | RS-232 | Directional or Panel Mount | MLMux5 SDI-12 |
| MLRemote-Y-S-Q MLRemote5-Y-S-Q | Polycarbonate | 32 x 27 x 15 cm 12.6 x 10.7 x 5.9 in | 3.4 kg 7.6 lbs | Lead Acid | 5 W | 900 MHz | RS-232 | Directional | MLMux5 SDI-12 |
| MLRemote-Y-S-Q MLRemote5-Y-S-Q | Polycarbonate | 32 x 27 x 15 cm 12.6 x 10.7 x 5.9 in | 3.4 kg 7.6 lbs | Alkaline | N/A | 900 MHz (AU) 868 MHz (EU) | RS-232 | Directional | MLMux5 SDI-12 |
| MLRemote-Y-AU/EU-S-Q MLRemote5-Y-AU/EU-S-Q | Polycarbonate | 32 x 27 x 15 cm 12.6 x 10.7 x 5.9 in | 3.4 kg 7.6 lbs | Lead Acid | 5 W | 900 MHz (AU) 868 MHz (EU) | RS-232 | Directional | MLMux5 SDI-12 |
| MLRemote-Y24-A-Q MLRemote5-Y24-A-Q | Polycarbonate | 32 x 27 x 15 cm 12.6 x 10.7 x 5.9 in | 3.4 kg 7.6 lbs | Alkaline | N/A | 2.4 GHz | RS-232 | Directional | MLMux5 SDI-12 |
| MLRemote-Y24-S-Q MLRemote5-Y24-S-Q | Polycarbonate | 32 x 27 x 15 cm 12.6 x 10.7 x 5.9 in | 3.4 kg 7.6 lbs | Lead Acid | 5 W | 2.4 GHz | RS-232 | Directional | MLMux5 SDI-12 |
| MLRemote-O/Y-A-Q MLRemote5-O/Y-A-Q | MLRemote-Y-S-Q MLRemote5-Y-S-Q | MLRemote-Y-AU/EU-A-Q MLRemote5-Y-AU/EU-A-Q | MLRemote-Y-AU/EU-S-Q MLRemote5-Y-AU/EU-S-Q | MLRemote-Y24-A-Q MLRemote5-Y24-A-Q | MLRemote-Y24-S-Q MLRemote5-Y24-S-Q | |
|---|---|---|---|---|---|---|
| Enclosure Type | Polycarbonate | Polycarbonate | Polycarbonate | Polycarbonate | Polycarbonate | Polycarbonate |
| Size (L x W x H) | 26 x 16 x 9 cm 32 x 27 x 15 cm 12.6 x 10.7 x 5.9 in | 32 x 27 x 15 cm 12.6 x 10.7 x 5.9 in 10.2 x 6.3 x 3.6 in | 32 x 27 x 15 cm 12.6 x 10.7 x 5.9 in 10.2 x 6.3 x 3.6 in | 32 x 27 x 15 cm 12.6 x 10.7 x 5.9 in | 32 x 27 x 15 cm 12.6 x 10.7 x 5.9 in | 32 x 27 x 15 cm 12.6 x 10.7 x 5.9 in |
| Assembled Weight | 3.4 kg 7.6 lbs | 3.4 kg 7.6 lbs | 3.4 kg 7.6 lbs | 3.4 kg 7.6 lbs | 3.4 kg 7.6 lbs | 3.4 kg 7.6 lbs |
| Battery | Alkaline | Lead Acid | Alkaline | Lead Acid | Alkaline | Lead Acid |
| Solar | N/A | 5 W | N/A | 5 W | N/A | 5 W |
| Radio | 900MHz | 900 MHz | 900 MHz (AU) 868 MHz (EU) | 900 MHz (AU) 868 MHz (EU) | 2.4 GHz | 2.4 GHz |
| Receiving | RS-232 | RS-232 | RS-232 | RS-232 | RS-232 | |
| Antenna | Directional or Panel Mount | Directional | Directional | Directional | Directional | Directional |
| Options | MLMux5 SDI-12 | MLMux5 SDI-12 | MLMux5 SDI-12 | MLMux5 SDI-12 | MLMux5 SDI-12 | MLMux5 SDI-12 |
News & Announcements
Canary Systems Featured in Engineering and Mining JournalMay 18, 2026 - 12:06 pm
Geotechnical Radar Monitoring CourseApril 23, 2026 - 10:25 am
See you at SME 2026!February 12, 2026 - 4:43 pm
Advisory Board Press ReleaseFebruary 2, 2026 - 1:04 pm
Slope Stability 2025 Workshop Recap & PresentationDecember 16, 2025 - 4:43 pm