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Showing 21-40 of 55 products · 5 unavailable products hidden
DFRobot SEN0713 RS485 Chlorophyll Water Quality Sensor
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This industrial-grade chlorophyll sensor measures chlorophyll concentration in water using the fluorescence principle, making it useful for algae monitoring in rivers, lakes, ponds, aquaculture systems and field research sites.The probe and housing are integrated into a single waterproof unit, wi...
DFRobot RS485 Fluorescence Dissolved Oxygen Sensor - Freshwater
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This optical dissolved oxygen probe is designed for measuring DO levels in freshwater environments such as aquaculture tanks, rivers, lakes, reservoirs and treatment facilities. It uses fluorescence quenching, measuring the phase shift of light caused by oxygen molecules, rather than relying on a...
Gravity: Analog TDS Sensor/Meter for Arduino
The Gravity Analog TDS Sensor is an Arduino-compatible kit for measuring Total Dissolved Solids (TDS) in water. TDS indicates how many milligrams of soluble solids are dissolved per litre — the higher the value, the less clean the water. This sensor outputs a 0–2.3V analog signal that can be read...
DFRobot RS485 Industrial Residual Chlorine Sensor
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This industrial-grade residual chlorine sensor is designed for precise, reliable water quality monitoring in demanding environments. Its integrated probe and housing measure residual chlorine concentrations, specifically hypochlorous acid and hypochlorite ions, over a 0 to 10 mg/L range.The senso...
Octopus DS18B20 Digital Temperature Brick
The Octopus DS18B20 Digital Temperature Brick uses the DS18B20 1-Wire digital temperature sensor from Maxim IC to deliver accurate readings from −55 °C to +125 °C with ±0.5 °C accuracy. Each sensor has a unique 64-bit serial number, allowing multiple sensors to share a single data bus. Designed ...
DFRobot Gravity Industrial Analog EC Meter Kit (K=1, IP68)
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This industrial Gravity kit measures electrical conductivity in aqueous solutions, helping you evaluate water quality by tracking dissolved content or salinity. It is suited to hydroponics, aquaculture and environmental water monitoring where long-running measurements are needed.The pro probe is ...
RS485 Soil Temperature, Moisture, and EC Sensor for Precision Irrigation and Climate Control in Greenhouses (IP68, 5-30V)
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The RS485 Soil Sensor provides real-time monitoring of soil temperature, moisture, and electrical conductivity (EC) in a single rugged probe. It communicates via the MODBUS-RTU protocol over RS485, making it easy to integrate with Arduino, Raspberry Pi, and automated irrigation or climate control...
5pcs NTC 10K Ohm Thermistor Temperature Sensor Cylinder Probe 1m Wire
A pack of five NTC thermistor temperature probes, each with a 1-metre wire lead for remote temperature sensing. These 10 KΩ (at 25°C) NTC sensors are sealed in a cylindrical metal probe for durability and are suitable for measuring temperatures from −30°C to +110°C. NTC thermistors decrease in r...
Food-Grade Heat Shrink - 3/8 diameter 12 long
We decided to stock this food-safe heat shrink specifically for people who were building beer-brewing or sous-vide projects using our waterproof DS18B20+ digital temperature sensors. This heat shrink is FDA Compliant for contact with food. The end of the sensor is stainless steel, but the jack...
One Wire Digital Temperature Sensor - DS18B20
The DS18B20 is a digital temperature sensor from Maxim (now Analog Devices) that communicates over a 1-Wire bus. It reports temperature in degrees Celsius with 9 to 12-bit configurable resolution. Each sensor has a unique 64-bit serial number, allowing multiple sensors to share a single data line...
URM15 - 75KHZ Ultrasonic Sensor (30~500cm, RS485)
The DFRobot URM15 is an industrial-grade ultrasonic ranging sensor with an IP65-rated waterproof probe. It provides an effective measuring range of 30–500 cm (tested against a flat wall) and communicates via an RS485 interface using the standard Modbus RTU protocol, making it compatible with PLCs...
Water-proof Ultrasonic Sensor (ULA)
This is an ultrasonic distance sensor(ULS) of high performance with an enclosed waterproof probe. The sensor, like many other ultrasonic sensors, based on the principle of ultrasonic echo ranging, determines the distance to a target by measuring time lapses between the sending of a pulse and rece...
Gravity: DS18B20 Temperature Sensor (Arduino Compatible)
While there are many types of temperature sensors available in the market, the DS18B20 arduino Temperature Sensor form DALLAS is the best choice in applications which require high accuracy and high reliability. Its ultra-small size, low hardware overhead, strong anti-interference capability a...
Water-proof Ultrasonic Sensor (ULS)
A high-performance waterproof ultrasonic distance sensor with an enclosed probe, capable of measuring distances from 270 mm to 8000 mm. Based on ultrasonic echo ranging, it determines distance by measuring the time between sending a pulse and receiving the echo — no physical contact required. Su...
DFRobot SEN0681 RS485 Dissolved Oxygen Sensor - Seawater
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This sensor is designed for monitoring dissolved oxygen in seawater and other high-salinity applications. It uses fluorescence quenching rather than a traditional electrochemical cell, so it does not consume oxygen during measurement and does not require electrolyte replacement.The probe measures...
RS485 MODBUS-RTU Soil Temperature & Moisture Sensor for Automatic Irrigation System (IP68, Compatible with Arduino)
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##Introduction The RS485 Soil Sensor is designed for real-time monitoring of soil temperature and humidity, ideal for large-scale agricultural applications, greenhouse management, and fruit orchards' automatic irrigation systems. Utilizing the MODBUS-RTU protocol via RS485 communication, the sens...
SHT31 Weather-proof Temperature Humidity Sensor
This is an SHT31 Temperature & Humidity sensor housed in a weather-proof enclosure. The sensor is designed to be waterproof so you can use it safely in outdoor projects. Please note that although the sensor is waterproof, it is not suggested to submerge it in water. For in-water measurement, the ...
Gravity: I2C High Temperature Sensor (K-Type, 800℃)
This Gravity I2C high-temperature sensor pairs a signal amplification module (MAX31855K) with a stainless steel sheathed K-type thermocouple probe for measuring temperatures up to 800 °C. The module converts the thermocouple's millivolt signal to a 14-bit digital reading over I²C, with cold-junct...
Weatherproof Ultrasonic Sensor with Separate Probe
Most ultrasonic distance sensors aren't waterproof which can be a problem if you need your project to withstand the elements outdoors. No need to worry any more! We have developed waterproof ultrasonic distance sensors with a waterproof sealed emitter. This sensor is suitable for outdoor applica...
SHT20 I2C Temperature Humidity Sensor (Waterproof Probe)
This SHT20 I2C temperature & humidity sensor is equipped with waterproof probe. It comes with the 4C CMOSens® SHT20 temperature & humidity sensor chip and the probe has gone through dual waterproof protection test. The SHT20 I2C temperature & humidity sensor adopt Sensirion techniqu...
