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Automatic Water Level Recorder | Mertani

Automatic Water Level Recorder (AWLR)

Obtain real-time and accurate water level information with the support of reliable IoT technology, ensuring 24/7 zero downtime measurements.
Measurement type:
  • Ground Water Level
  • Canal Water Level
Plug & Play
Access Anytime
& Anywhere
Waterproof Enclosure
Waterproof Enclosure

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.



  • 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.

  • 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


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

  1. Government Regulation No. 38 of 2011 concerning Rivers. see details

  2. Minister of Public Works Regulation No. 14/PRT/M/2015 regarding Guidelines for Urban Drainage System Management. see details

Remote Terminal Unit (RTU)


  • Mertani data logger

  • Power unit

  • Komunikasi data (2G, 4G, LTE)

  • Panel box

  • Wiring system

*The installation of RTU can be adjusted to field conditions.

AWLR Sensor


  • Tinggi Muka Air Tanah (TMAT)

  • Tinggi Muka Air Sungai (TMAS)

Water Level Sensor Type

AWLR Ultrasonic Basic

Automatic Water Level Ultrasonic Basic


  • Resolution of 1-mm

  • Firmware filtering for excellent noise tolerance and clutter rejection

  • 6Hz read rate42kHz ultrasonic sensor measures distance to objects

  • Virtually no sensor dead zone, objects closer than 50cm
    typically range as 50cm

  • Operates from 2.7-5.5V

  • Low 2.9mA average current requirement

  • Operational temperature -40°C to +65°C (-40°F to +149°F)

  • Weather resistant

  • Real-time automatic calibration (voltage, humidity, and ambient noise)

Water Level Sensor Type

AWLR Submersible



  • Material 316L stainless stee

  • Less than 10ms responsible time

  • Custom level range from 1 ~ 200 m

  • Pressure range : 0~20 bar

  • Accuracy :  ≤±0,5

  • Working temperature : -40 ~ 80°C

  • Output Communication : RS485

Water Level Sensor Type

AWLR Ultrasonic Pro



  • Housing adopt NLEPE synthetic material. waterproof, anti-corrosion

  • Less than 9°C beam angle design

  • Less than 200ms responsible time

  • Measuring range : 5, 10, 15, 20, 30, 40, 50, 60 m

  • Accuracy : 0,5 ~ 1%

  • Resolution : 3mm or 0,1%

  • Ambience temperature : -20 ~ 80°C

  • Output Communication : RS485

Water Level Sensor Type

Radar Sensor



  • Material made from 316L, PP, PTFE, or PEEK.

  • Measuring range : up to 120 m

  • Deviation : ≤1mm

  • Beam angle 3°C

  • Process pressure : -1 ~ 25 bar

  • Process temperature : -196 ~ 250 °C

  • Ambient temperature : -40 ~ 80 °C

  • Output Communication : RS485

Study Case

Installation of AWLR for River Water Level Fluctuation Monitoring together with the Public Works and Housing Department (PUPR) of Kediri City, East Java.

​In March 2024, the Mertani team implemented the Automatic Water Level Recorder (AWLR) installation project in Kediri City, East Java. In this project, they successfully installed 6 units of AWLR at five strategic locations along the river that crosses the city. The main objective of installing AWLR is to enhance the quality of river water level fluctuation monitoring efficiently and effectively. Therefore, it is expected that the generated data will provide more accurate and up-to-date information about the river conditions, as well as support better water resource management in the area.

Teknologi: Automatic Water Level Recorder (AWLR) mode TMAS

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Study Case

Installation of Automatic Water Level Recorder for Oil Palm Plantation Management in North Sumatra

In March 2024, Mertani installed Automatic Water Level Recorders (AWLR) in an Oil Palm Plantation in Medan City, North Sumatra. They installed a total of 3 units of AWLR at different locations within the plantation. The purpose of installing these devices is to enhance the efficiency and effectiveness of water level monitoring within the plantation. By monitoring water level fluctuations in real-time, it is hoped to aid in making better decisions regarding water management in the oil palm plantation. This initiative represents a proactive step by Mertani in supporting sustainable and efficient farming practices in the region.


Commodity: Palm Oil

Technology: Automatic Water Level Recorder (AWLR) mode  TMAT

Study Case

Brochure Product 

Brosur Mertani_Automatic Water Level Recorder sebagai Solusi Digitalisasi Perkebunan di Indonesia

Water Level

Automatic Water Level
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