Liquid pH Detection Sensor Module with Electrode Probe. 1 x pH Electrode Probe with BNC Interface. 1 x Liquid pH 0-14 Sensor Module. Key Features Works within a detection temperature range of 0-80°C.
eBay
Keyestudio ESP32 42 in 1 Sensor Module Kit For ESP32 Diy Electronic Kit Support Arduino C And
Aliexpress UK
Wide detection range: The PH Sensor for Arduino can detect a wide concentration range from PH0 to PH14, allowing for versatile use in various applications. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
eBay
Smart Farming Kit for Arduino UNO R4 Minima Farmer Labs with Tutorial Sensors Advanced Modules
Aliexpress UK
Detection concentration range: PH0-14. Detection temperature range: 0-80. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Working current: 5-10mA.
eBay
ELEGOO Upgraded 37 in 1 Sensor Modules Kit with Tutorial Compatible with Arduino IDE UNO R3 MEGA
Aliexpress UK
Wide detection range: The PH Sensor for Arduino can detect a wide concentration range from PH0 to PH14, allowing for versatile use in various applications. Just follow the Guest Checkout instructions.
eBay
IR Infrared Transmitter Module Ir Digital 38khz 5V Infrared Receiver Sensor Module For Arduino
Aliexpress UK
DFRobot type SEN0161. For most hobbyist this is a great accuracy range and it's low cost makes it a great tool for bio-robotics and other projects! The sensor has an LED which works as the power indicator, a BNC connector and PH2.0 sensor interface.
eBay
DC 3V-5V Rain Water Level Sensor Module Detection Liquid Surface Depth Height for Arduino DIY
Aliexpress UK
It is made of a corrosion-resistant material. It avoids the problem of light corrosion and significantly extends the service life. 【3-pin interface】 This sensor is compatible with the 3-pin interface, which can be connected directly to the Gravity I or O expansion screen.
eBay
GY-63 MS5611-01BA03 precision MS5611 pressure sensor module height sensor module for arduino
Aliexpress UK
Wide detection range: The PH Sensor for Arduino can detect a wide concentration range from PH0 to PH14, allowing for versatile use in various applications. Just follow the Guest Checkout instructions.
eBay
Liquid PH 0-14 Value Detection Regulator Sensor Module Monitoring Control Meter Tester BNC PH
Aliexpress UK
1 x pH Electrode Probe. Its versatility ensures it's a valuable asset across multiple industries. Detectable pH range: 0-14. 1 x pH0-14 Sensor module. Detection temperature range: 0-80℃. Working temperature: -10~50℃ (nominal temperature 20℃).
eBay
MAX6675 K-type Thermocouple Temperature Sensor Temperature 0-800 Degrees Module For Arduino
Aliexpress UK