Level Datalogger

Data logging water level sensors or levellogger is a submersible level sensor with data logger are ideal for observing flow patterns, testing pumps, and monitoring groundwater, well, streams, lakes, wetlands, tanks and tidal levels long-term or short-term. It is a research-grade data logger for continuous monitoring of water level, temperature and conductivity a depths of up to 300mH2O. The data that they collect and store can be downloaded to a portable computer in the field. Features 0.05% measurement accuracy, a SS316L or Titanium housing for use in both freshwater and saltwater. Pokcenser provides vented design and non-vented design for the convenience deployment of different applications.

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Pokcenser Automation Technology Co., Ltd

Mobile: +86 181 7515 5326

Email: info@pokcenser.com

Tel: +86-731-8229 9492

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PWL755 Self-contained Water Level Datalogger

Features

Built-in Level&Temperature sensor
Stainless steel SS316L or titanium alloy housing for freshwater or saltwater
All 316L stainless steel robust construction for durability
Built-in large-capacity FLASH memory
High-capacity long-life lithium battery.
RS485 Modbus RTU, download data to PC by a reader

PWL755 Self-contained Water Level Datalogger

Applications

Groundwater level and temperature monitoring
Flood control level monitoring in coastal cities
Reservoir and dam water level
Lake and surface runoff water water level monitoring
Unmanned hydrological monitoring stations
Real-time monitoring of liquid level in tanks
On-site liquid level monitoring of industrial control systems

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Advantages

Self-contained: no cable lead-out, strong underwater sealing
High-quality and high-stability sensing elements
High accuracy: Level 0.05%F.S., temperature ±0.5℃
Low consumption: Energy-saving design, standby power consumption <5µA, acquisition power consumption 3mA
Multi-parameters at one time: Water depth, water temperature, water pressure, battery leftover, time...
Anti-surge and anti-electromagnetic interference circuit board
Internal intelligent linear correction and temperature compensation

The Self-contained Water Level Datalogger is a groundwater monitoring instrument powered by an internal battery. It can be used to record water depth (pressure) and temperature for a long time. The housing material is made of stainless steel or titanium alloy. The water level recorder includes water level and temperature sensors, built-in large-capacity FLASH memory and high-capacity long-life lithium battery. All functions are integrated in the instrument with a diameter of 26mm. It is suitable for water level and water temperature measurement in surface water, groundwater and marine environment.

Resources

Datasheet

File Name	Time	Type	Download
PWL755 Self-contained Water Level Datalogger	Sep 25, 2025	PDF

Technical Parameters

Main Characteristics	----
Level Range	0~10mH2O...0~200mH2O
Water level accuracy	±0.05%F.S. (0~50℃)
Resolution	1mm
Pressure Type	Absolute Pressure
Long stability	<0.05%F.S/year
Temperature Accuracy	±0.5℃
Temperature Resolution	0.1℃
Built-in Battery Life	10 years ( Record once/60 minutes)
Storage Capacity	>40000 pieces readings
Electrical Characteristics	----
Compensation Temperature	0~50℃
Operating Temperature	-10~80℃
Power Supply	External voltage: DC5~30V (Typical 24V) Internal battery: 2.7~3.6VDC
Power Protection	Reverse polarity protection and over-voltage protection, Anti surge 2KV
Communication	RS485 Modbus RTU
Structure Characteristics	----
Measurable Medium	Compatible with 316L stainless steel and Viton
Housing Material	316L stainless steel or titanium(optional)
Lifting Wire	SUS304 stainless steel or 316L(optional)
Environmental Characteristics	----
IP Rating	IP68
Weight	About 300g (excluding cable)

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