
HydroSpider 2
Compact, low-power datalogger and telemetry solution for rainfall and environmental monitoring
Designed for environmental and hydrological monitoring. It supports a wide range of sensors and communication options, ensuring reliable performance in remote and harsh environments.
Key Features
Seamless TBRG Integration
Fits neatly inside a tipping bucket rain gauge—battery included—eliminating bulky external enclosures and reducing installation costs.
Quick & Cost-Effective Deployment
Compact and easy to install with minimal infrastructure. Integrated diagnostics and communications testing ensure reliable operation from day one.
Proactive Alerts & Monitoring
Monitor rainfall, water levels, water and air quality, and soil conditions with a wide range of sensors. Automated SMS and email alerts provide instant notification of critical changes.
Flexible Data Reporting
Store over 300,000 records locally and deliver data securely via SMS, Email, FTP, HTTP(S) or DNP3 to your nominated servers. Reporting intervals are fully customisable—scheduled, hourly, or event-based.
Reliable Communications
Maintain connectivity anywhere in the world with support for 3G, 4G, NB-IoT and LTE-M1, delivering dependable performance even in remote areas with poor reception.
Multi-Sensor Compatibility
Go beyond rainfall monitoring with support for up to 20 channels, including SDI-12, Modbus RS-485, analogue, and digital inputs.
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Enclosure: IP60‑rated ABS
Size & Weight: 158mm (W) × 90mm (H) × 46mm (D), 360g
Temperature Range: ‑20°C to +60°C
Mounting: Surface mount (fits inside TBRG)
Warranty: 12‑month manufacturer’s warranty
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Power Supply: 12–28V DC (solar panel or external power)
Backup Battery: 9V lithium recommended
Charging: Built-in charger and monitoring for external 12V SLA battery
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Max Channels: 20
Standard Inputs:
– 2 x Analogue (0–2.4V / 0–5V / 0–10V / 4–20mA)
– 2 x Digital (switch / event / counter / meter)
– 4 x System Inputs (voltage, temperature, moisture, power)
Options for
– SDI‑12 & Modbus inputsOutputs:
– 1 x Switched 12V supply (sensor power/control)
– 1 x Open collector (accessory control)Virtual Inputs:
- Calculation / logic‑based
- Rating tables
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Memory Type: Non-volatile flash
Storage Capacity: ~300,000 records
Report Format: CSV
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Mobile: 3G/4G LTE, NB-IoT, Cat-M1
Wired: Ethernet (via LANLink cable)
WiFi: Supported via HLink cable
Reporting Protocols:
– HTTP/HTTPS POST
– FTP
– Email
– DNP3
– SMS -
On-board RTC (Real-Time Clock)
Automatic NTP Synchronisation
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📎 © 2025 Halytech. Specifications subject to change without notice.

How It Works
The HydroSpider was designed to easily fit into most standard TBRG
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Deploy HydroSpider2 in the field, attaching your sensors and securing the unit in place.
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Configure locally using the LANLink or HLink cable and a computer via web browser. No special software required.
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HydroSpider2 automatically collects and transmits data. Alarms can be set to notify you of critical changes, and reports are delivered on schedule.
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HydroSpider2 provides you with actionable data for decision-making, ensuring compliance and enhancing water management strategies.
Applications
Environmental Monitoring
Water Resource Management
Research & Science
Simplify Your Rainfall Monitoring
No complicated setups or unreliable readings. Hydrospider2 offers a small-footprint, pre-configured solution designed for accuracy and reliability.
