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Digital Water Level Recorder - DWLR
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Product Description
Digital Water Level Recorder (DWLR), model AQPTWLSNV, measures water level and temperature using a submersible non-vented piezoresistive pressure sensor with automatic barometric pressure compensation. Available measuring ranges: 50 m, 100 m, 150 m and 200 m.
The SS-316 stainless-steel sensor features IP68 protection, 0.1% full-scale measurement accuracy and 3 mm resolution. The data logger supports programmable recording intervals from 1 minute to 24 hours and non-volatile data storage for up to one year under the specified operating conditions.
The system supports RS-485 sensor communication, GSM/GPRS/EDGE remote telemetry, and USB/CSV data retrieval. It is suitable for borewell, piezometer, groundwater, municipal water-supply, wastewater and industrial liquid-level monitoring.
Product Specifications
| Brand / OEM | Aquasense Private Limited |
| Model | AQPTWLSNV (range-specific variants) |
| Product Type | Digital Water Level Recorder (DWLR) |
| Water Level Measuring Range | 50 / 100 / 150 / 200 meters (select required variant) |
| Measurement Technology | Submersible non-vented piezoresistive pressure sensor |
| Barometric Compensation | Automatic pressure correction for individual sensor |
| Sensor Material | Stainless steel SS-316 |
| Sensor Dimensions | Ø 30 × 80 mm |
| Sensor Ingress Protection | IP68 |
| Data Logger Enclosure Protection | IP65 |
| Water Level Accuracy | 0.1% full scale |
| Water Level Resolution | 3 mm |
| Repeatability | 0.1% full scale |
| Long-Term Stability | 0.1% full scale (OEM stated) |
| Temperature Measuring Range | −20°C to +70°C |
| Temperature Accuracy | Better than ±0.3°C |
| Ambient Temperature | −20°C to +70°C |
| Ambient Humidity | 5%–100% |
| Altitude | 0–7,500 m |
| Sensor / Logger Communication | RS-485-compatible output |
| GSM / GPRS Transmitter | GSM/GPRS/EDGE-based communications |
| Transmission Methods | TCP/IP, FTP, HTTP POST and SMS (as supported by configuration) |
| Wireless Network Frequency | Cellular frequencies per the OEM transmitter specification; confirm local network compatibility |
| Pressure Overload | 1.5 × full scale without affecting calibration |
| Burst Pressure | ≥2 × full-scale pressure |
| Data Logger ADC | 16-bit; ±1 LSB accuracy |
| Recording Interval | Programmable: 1 minute to 24 hours |
| Data Storage | Up to 1 year in nonvolatile flash memory (OEM stated) |
| Logger Power | Replaceable lithium battery pack |
| Battery Operation | OEM states minimum 2-year operation under its stated transmission/recording assumptions; actual service life varies |
| Battery Voltage Monitoring | Supported |
| Computer Interface | USB |
| Recorded Data Format | CSV; compatible with specified SWIS software |
| Configuration / Analysis Software | Windows based |
| Clock Accuracy | ±1 minute per year; 1-second displayed time resolution |
| Electrical Protection | Lightning, over-voltage and surge protection |
| Sensor Cable Length | Set for well/piezometer installation depth; confirm with OEM quotation |
| Accessories / Mounting | Suspension bracket and suitable protective enclosure/accessories per installation proposal |
Product Features
- Measures water/liquid level using a stable piezoresistive sensing element housed in stainless steel.
- Probe is non-vented; individual barometric pressure correction is applied through the associated logger.
- Selectable 50 m, 100 m, 150 m and 200 m measuring ranges from the manufacturer's AQPTWLSNV product family.
- IP68-protected Ø30 × 80 mm SS-316 probe is designed for continuous submersion.
- Overall accuracy and long-term stability are stated as 0.1% of full scale; resolution is 3 mm.
- Temperature measurement range is −20°C to +70°C with accuracy better than ±0.3°C.
- Sensor output supports RS-485 connection to the logger/data-retrieval system.
- Data logger uses a 16-bit ADC with ±1 LSB accuracy and nonvolatile recording storage.
- Adjustable record intervals span 1 minute to 24 hours; capacity is specified as up to 1 year.
- Remote communications use GSM/GPRS/EDGE and can support HTTP POST, FTP/TCP/IP and SMS, according to system configuration.
- Windows-based logger tools support site configuration; CSV and USB-based computer retrieval are supported.
- Overvoltage, surge and lightning protection are stated for power and sensor wiring.
- The logger enclosure rating is IP65 (distinct from the sensor's IP68 rating).
- Replaceable lithium battery pack, battery-voltage monitoring and time synchronization support routine maintenance.
- Cable length, mounting equipment, cellular service and installation accessories must be specified to match the site and supplier quotation.
Package Includes
- 1 × Aquasense AQPTWLSNV DWLR system in the selected 50 m, 100 m, 150 m or 200 m measurement configuration
- Submersible pressure sensor, data logger and GSM/GPRS telemetry equipment as agreed in the final bill of materials
- Sensor/suspension cable in site-specific length, to be confirmed before order
- Installation accessories, suspension bracket and mounting hardware as specified by Aquasense
- Applicable setup and maintenance documentation; confirm any SIM, battery, protective box and computer interface accessories in final packing list
Frequently Asked Questions
What does the Aquasense DWLR measure?
What are the water-level accuracy and resolution?
Can the DWLR send data remotely over GSM/GPRS?
Is the DWLR sensor waterproof, and can it be installed in a borewell?
What logging interval, warranty and accessories are supplied?
Other Information
Warranty Information
1 Year Seller Warranty
This item is covered with a standard warranty of 1 year from the time of delivery against manufacturing defects only. This warranty is given for the benefit of TwoElectrons customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.
What Voids Warranty
If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.
Shipping & Returns Policy
Shipping Policy:
- In-stock items are delivered within 7-10 working days for orders within India. Delivery varies based on location and courier service.
- In-stock items are delivered within up to 20 working days for orders outside India. Delivery varies based on location and courier service.
- If the item is out of stock, you can still place an order. The estimated delivery time will be notified to you by email.
Return & Refund Policy:
- Return window: 7 days from receipt unless stated otherwise.
- No refunds or replacements after the return window.
- Returns are accepted only for non-working or damaged products.
- Initiate return requests from here: Return Request or contact us at 09831070550.
- Refunds are processed within 3-4 working days after inspection and approval.
Main Features
- Digital Water Level Recorder (DWLR) with 50 m / 100 m / 150 m / 200 m selectable ranges
- Non-vented submersible piezoresistive pressure sensor with automatic barometric compensation
- 0.1% full-scale water-level accuracy, 3 mm resolution and 0.1% FS repeatability
- Corrosion-resistant SS-316 submersible probe, IP68 sensor protection
- Measures both water level and water temperature (−20°C to +70°C)
- Data logger with configurable recording intervals from 1 minute to 24 hours
- GSM/GPRS/EDGE remote data transmission and RS-485-compatible sensor interface
- USB-connected CSV data retrieval and Windows configuration/analysis software
- Battery-powered monitoring for groundwater, borewells, piezometers and water infrastructure
SKU: 2ESE2195
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Lead time
| QUANTITY | DISPATCH |
|---|---|
| 1-10 units |
Order from India: 7-10 working days Order outside India: Up to 20 working days |
| 10+ units | To be negotiated |
Category:
All Products,
Level Sensor
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