What do you get?
Mertani Automatic Water level Recorder (AWLR) ​
​Mertani Automatic Water Level Recorder (AWLR) will assist you in monitoring water levels, both groundwater levels (TMAT) and channel water levels (TMAS). For plantation stakeholders and policymakers responsible for maintaining peatlands, river basins, dams, and groundwater level monitoring, data collection can be simplified with automatic data acquisition.Choose the type of AWLR device that suits your needs, from sensor types and accessories to additional advanced features like CCTV.
Challenge
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The rise in sea levels due to climate change increases the risk of flooding in coastal areas and small islands by causing sea water inundation and increasing extreme rainfall. This threatens infrastructure and human settlements. There is a need for mitigation, adaptation, and wise spatial planning to protect communities and the environment from the adverse impacts of floods.
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High-level water monitoring technologies such as manual gauges and tide gauge stations have limitations in accuracy, range, and real-time capability, thus requiring the development of more advanced technology to monitor water levels in real-time and accurately.
About AWLR
Definition
The Automatic Water Level Recorder (AWLR) is an innovative solution for automatically, efficiently, and accurately measuring water levels. This device offers numerous benefits for water resource management, infrastructure, and the environment. The use of AWLR is based on clear regulations and has a structured data reading process scheme. Various parameters measured by AWLR can provide valuable information for various purposes.
Legal Basis
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Government Regulation No. 38 of 2011 concerning Rivers. see details
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Minister of Public Works Regulation No. 14/PRT/M/2015 regarding Guidelines for Urban Drainage System Management. see details
Remote Terminal Unit (RTU)
Detail
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Mertani data logger
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Power unit
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Komunikasi data (2G, 4G, LTE)
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Panel box
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Wiring system​
​*The installation of RTU can be adjusted to field conditions.
AWLR Sensor
Parameter
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Tinggi Muka Air Tanah (TMAT)
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Tinggi Muka Air Saluran (TMAS)
Choose AWLR Sensor Type that suits your industry's needs!
Water Level Sensor Type
AWLR Ultrasonic Basic
Details:
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Detection out to 5-meters or 10-meters
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Resolution of 1-mm
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Operating temperature range from -40°C to +65°C 7
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Operating voltage of 2.7V to 5.5V7
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Nominal current draw of 2.3mA (peak ~49mA) at 3.3V, and 3.1mA (peak ~98mA) at 5V
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Water Level Sensor Type
AWLR Ultrasonic Pro
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Details:
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Measuring range: 0.5m - 20m (with standard probe​)​​;
0.5m - 15m (with anti-corrosive sealed probe)
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Process Connection: M95*2 thread / flange / bracket
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Process Temperature: - 40°C - +70°C
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Process Pressure: ATM
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Accuracy: -+ 0.25% of full range
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Output: RS485 / MODBUS (6 - 24 V DC)
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Explosion Proof:Ex ia IIB T6 Ga
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Enclosure Protection Grade: Plastic enclosure-IP66;
AL enclosure-IP67
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The Housing Material of The Transducer: PA66+GF30
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Water Level Sensor Type
AWLR Submersible
Details:
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Material 316L stainless stee
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Less than 10ms responsible time
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Custom level range from 1 ~ 200 m
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Pressure range : 0~20 bar
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Accuracy : ≤±0,5
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Working temperature : -40 ~ 80°C
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Output Communication : RS485
Water Level Sensor Type
AWLR
Radar Sensor
Details:
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Materials, wetted parts: PVDF
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Measuring range : up to 30 m (98,43 ft)
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Deviation : ≤2mm
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Beam angle 4°
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Process pressure : -1 ~ 3 bar (-100 ~ +300kPa/-14.5 ~ +43.51psig)
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Process temperature : -40 ~ +80 °C
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Ambient temperature : -40 ~ 80 °C
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Output : 4 ~ 20 mA/HART, Modbus, SDI-12
Study Case
Building a Water Level Monitoring System for Channels through AWLR Installation in Jakarta
Recently, the Mertani team installed three more Automatic Water Level Recorders (AWLR) in South Jakarta. The project began on September 18, 2025, and was completed on September 26, 2025. The installations took place at three strategic locations: the Ancol River, Kalibaru Pier, and Muara Baru Pier.
​​Technology: Automatic Water Level Recorder (AWLR) TMAS mode
Study Case
AWLR Installation for Groundwater Level Monitoring and Environmental Regulatory Compliance
The Mertani team installed an Automatic Water Level Recorder (AWLR) on September 29–30, 2025, in Landak Regency, West Kalimantan. This activity aimed to monitor groundwater levels in oil palm plantations to support sustainable water resource management. The installation process included drilling wells, installing sensors and dataloggers, and training on equipment maintenance for relevant parties. Due to the lack of GSM signal in the location, the team utilized the Starlink network to ensure smooth data transmission.​
​Technology: Automatic Water Level Recorder (AWLR) TMAT mode
