HS-S37P Water Depth Sensor - Analog Output, 3-Pin Interface, Stainless Steel
HS-S37P Water Depth Sensor - Analog Output, 3-Pin Interface, Stainless Steel - Image 2
SKU: SENS-1316
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HS-S37P Water Depth Sensor - Analog Output, 3-Pin Interface, Stainless Steel

₹109.00 (Inclusive of all taxes)
Out of Stock

The HS-S37P is an analog water depth sensor designed for real-time liquid level monitoring. It provides a voltage output proportional to submersion depth and is compatible with 3.3V/5V systems like Arduino, ESP32, and Raspberry Pi for easy integration into DIY, educational, or industrial monitoring projects.

Features

  • Analog voltage output directly proportional to water depth for precise measurement.
  • Wide 3.3V to 5V DC operating range compatible with Arduino, ESP32, and Raspberry Pi.
  • Simple 3-pin interface (VCC, GND, Signal) for straightforward wiring and integration.
  • Stainless steel construction and exposed copper traces for durable, corrosion-resistant operation.
  • Fast response time (≤500ms) and low power consumption (≤50mA) for efficient monitoring.

Out of stock

Description

The HS-S37P water depth sensor operates on a resistive sensing principle. Multiple exposed parallel copper traces act as conductive paths; as water submerges more traces, the electrical resistance between them decreases. This change in resistance is converted into a corresponding analog voltage signal, which is output via the signal pin. The sensor’s output can be read by any microcontroller with an ADC (Analog-to-Digital Converter) to calculate the precise water level.

Built with a stainless steel housing and PCB, the sensor is designed for reliable performance in wet environments. Its compact form factor (65mm x 18mm) and dual mounting screw holes allow for secure installation in tanks, reservoirs, or leak detection systems. The sensor is ideal for projects requiring real-time water level data without complex calibration.

Key Features

  • Analog Resistive Sensing: Provides a linear voltage output directly correlated to the depth of water submersion for accurate measurement.
  • Broad Voltage Compatibility: Operates from 3.3V to 5V DC, making it suitable for a wide range of microcontroller platforms including Arduino, ESP32, and STM32.
  • Robust Physical Construction: Features a stainless steel body and PCB with corrosion-resistant copper traces for long-term durability in aqueous environments.
  • Fast Response & Low Power: Delivers a quick sensor response (≤500ms) while consuming minimal current (≤50mA), ideal for battery-powered or continuous monitoring applications.
  • Simple Integration: Utilizes a standard 3-pin interface (VCC, GND, Signal) and includes mounting holes for easy physical and electrical installation.
  • Developer-Friendly: Supported by sample code for Arduino IDE and Python, simplifying the process of reading data and implementing depth calculations.

Applications

  • Water Tank & Reservoir Level Monitoring: Continuously measure and log liquid levels in storage tanks for automated refill control or consumption tracking.
  • Rainfall Gauges & Weather Stations: Integrate into precipitation collection units to measure rainfall depth and intensity over time.
  • Liquid Leak Detection & Flood Alarms: Deploy in basements, under sinks, or near appliances to trigger audible/visual alerts or shut-off valves upon detecting unwanted water presence.
  • Hydroponics & Aquaponics Systems: Monitor nutrient solution or fish tank water levels to maintain optimal conditions for plant and aquatic life.
  • Educational Demonstrations: Serve as a hands-on tool for teaching principles of analog sensing, ADC conversion, and environmental monitoring in STEM curricula.

Technical Specifications

Model NumberHS-S37P
Item TypeDepth Sensor
Operating Voltage3.3V - 5V DC
Working Current≤ 50 mA
Output SignalAnalog Voltage
Interface3-Pin (VCC, GND, Signal)
Response Time≤ 500 ms
Housing MaterialStainless Steel
Sensing PrincipleResistive (Copper Trace)
Length65 mm
Width18 mm
Weight0.5 g

Frequently Asked Questions

What is the operating voltage range for the HS-S37P sensor?

The HS-S37P water depth sensor is designed to operate within a 3.3V to 5V DC range. This broad compatibility allows it to be powered directly from the 3.3V or 5V pins of common development boards like Arduino Uno, ESP32, or Raspberry Pi GPIO, without requiring an external voltage regulator.

How do I connect and read data from the HS-S37P sensor?

Connect the sensor's three pins: VCC to your board's 3.3V or 5V supply, GND to ground, and the Signal pin to an analog input (ADC) pin on your microcontroller. The sensor outputs an analog voltage that increases with water depth. Use the microcontroller's ADC to read this voltage and apply a calibration formula (e.g., depth = (ADC_reading - dry_ADC_reading) / scale_factor) to calculate the actual water level.

Can this sensor be used for continuous submersion or with corrosive liquids?

While the sensor features a stainless steel housing for improved durability, its exposed copper traces and PCB are primarily designed for water level detection, not for prolonged, full submersion in corrosive or conductive liquids. For continuous immersion or use with non-water fluids, a sealed pressure transducer or capacitive sensor may be more suitable. Always verify chemical compatibility for your specific application.

Is calibration required, and is sample code available?

Yes, calibration is recommended for accurate depth measurement. You must record the sensor's analog output value when completely dry and when submerged to a known depth to establish a linear scaling factor. Sample Arduino IDE and Python code is commonly provided by the supplier to demonstrate reading the analog pin and performing this basic calculation, simplifying the integration process.

Package Includes

  • 1 x HS-S37P Water Depth Sensor

Additional Information

Weight 0.0005 kg
Dimensions 6.5 × 1.8 cm

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