Digital Water Level Quality Recorder
Monitor Groundwater Level and Quality in One System
Introduction
Groundwater is out of sight. Your data shouldn’t be.
Bulfro Aqua ESG’s Digital Water Level Quality Recorder (DWLQR) brings groundwater level and water-quality monitoring into one connected system. It calculates the water column using hydrostatic pressure and can monitor pH, TDS, electrical conductivity and optional quality parameters. Designed around CGWA guidelines, it gives industries and other groundwater users a practical way to move from manual checks to digital monitoring and reporting.
Product Overview
Level and Quality. One System.
A groundwater level reading tells you how much water there is. It does not tell you enough about the water itself. DWLQR closes that gap by monitoring level and selected quality parameters together.
A troll fitted with sensors sits at the monitoring point, while the communicator handles the collected data. Depending on the configuration, readings can be transmitted remotely or stored locally for later access.
What It Measures
What Can You Monitor?
DWLQR combines high-precision hydrostatic column measurement with electrochemical quality sensors in one durable downhole troll.
Groundwater level
Hydrostatic column pressure measurement with vented or non-vented options for exact aquifer depth tracking.
20 m to 1,500 m DepthpH
Full-spectrum acidity and alkalinity monitoring to detect chemical intrusion and ensure water safety.
0 – 14 pH RangeTotal Dissolved Solids (TDS)
Tracks dissolved inorganic salts and organic matter to identify mineral changes and contamination trends.
ppm / mg/LElectrical Conductivity (EC)
High-precision electrical conductivity detection indicative of salinity and ionic water chemistry.
0 – 1400 µS/mOptional Parameters
Expandable sensor troll configuration for additional environmental indicators as required by your site.
TSS 0–1000 mg/L & TempEngineering Data
Technical Specifications
| Specification | Details |
|---|---|
| Water-column depth | 20 m, 100 m, 200 m, 600 m, 1,000 m, 1,500 m |
| Vented troll accuracy | < ±0.25% of span |
| Non-vented troll accuracy | < ±0.5% of span |
| Data transfer | Telemetry / Non-telemetry |
| Telemetry | In-built GPRS modem |
| Local storage | 500 MB (Described as sufficient for > 2 years) |
| Power source | Grid / Battery |
| Operating temperature | -10°C to +55°C |
| Sensor protection | IP68 (Continuous submersible rating) |
| Communicator protection | IP65 (Weatherproof field enclosure) |
| pH sensor range | 0 – 14 pH |
| Conductivity sensor range | 0 – 1400 µS/m |
| TSS sensor range | 0 – 1000 mg/L |
| Output Protocol | RS485 / Modbus RTU |
| Reporting Compliance | CGWA Compliant Digital Reporting |
Available Models
| Model | Troll | Output | Transfer | Reporting | Power |
|---|---|---|---|---|---|
| BDWLQR-TB-1802 | Vented | RS485 | Telemetry | Yes | Battery |
| BDWLQR-TG-1802 | Vented | RS485 | Telemetry | Yes | Grid |
Commercial & Engineering Actions
Media Gallery
Hardware & Water Quality Probes
Why Choose DWLQR
Built for Real-World Groundwater Monitoring
Engineered to handle varied power conditions, remote locations, and harsh field environments with uncompromised data integrity.
Remote data, when you need it.
With telemetry, the in-built GPRS modem transfers data remotely. The server address and data-transmission frequency can be configured for the monitoring setup.
No telemetry? No problem.
For sites using the non-telemetry option, the system provides 500 MB of local data storage, described in the product brochure as sufficient for more than two years. Data can be transferred through USB to a laptop or PC.
Battery or grid powered.
Different sites have different power constraints, so DWLQR is available in both battery-powered and grid-powered configurations.
Ready for field conditions.
The sensor is rated IP68 and the communicator IP65. The specified operating temperature range is -10°C to +55°C.
Product Configuration
Choose the DWLQR Setup That Fits Your Site
There is no single groundwater monitoring setup for every location. Power availability, connectivity and water-column depth can all change what you need. Bulfro Aqua ESG’s DWLQR offers a choice of configurations:
Troll Sensor
Data Transfer
Power Source
Water-Column Depth
Standard Telemetry Models
The listed telemetry models include the battery-powered BDWLQR-TB-1802 and grid-powered BDWLQR-TG-1802. Both use a vented troll, RS485 output and digital reporting.
Frequently Asked Questions
Frequently Asked Questions
Find direct answers to common questions regarding DWLQR monitoring parameters, accuracy, telemetry, and depth availability.
It monitors groundwater level along with selected water-quality parameters. The brochure identifies pH, TDS and electrical conductivity, with optional parameters depending on the configuration.
The vented troll is specified at less than ±0.25% of span. The non-vented option is specified at less than ±0.5% of span. These figures apply to water-level measurement.
Yes. The telemetry option uses an in-built GPRS modem for data transfer.
The non-telemetry option provides 500 MB of local storage. Data can be transferred to a laptop or PC through USB.
Yes. DWLQR configurations are available with either battery or grid power.
Troll models are available for water-column depths from 20 m to 1,500 m.
From Borewell Reading to Digital Record
If you need a clearer view of groundwater level and quality, start with the site. Share your borewell depth, power availability, connectivity and monitoring requirements. Bulfro Aqua ESG can help identify the DWLQR configuration that matches those conditions. Just as importantly, this keeps the specification grounded in what the monitoring point actually needs, without adding features that do not suit the location.