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Optomax Digital Liquid Level Sensor (LLC200D3SH-LLPK1)

$51.58 at The Pi Hut

Gravity: Laser PM2.5 Air Quality Sensor

$61.15 at The Pi Hut

TP-LinkTapo Smart Water Leak Sensor (TAPO T300) (TPT300)

$24.45 at Storeio.gr

Grove - Temperature Humidity Barometer Sensor (BME280)

$25.50 at The Pi Hut

SHT20 I2C Temperature & Humidity Sensor (Waterproof Probe)

$29.16 at The Pi Hut

Midnite Solar MNBTS> Remote Temperature Sensor

$22.00 at EcoDirect

12" eTape Liquid Level Sensor + extras

$51.61 at The Pi Hut

Fermion: LWLP5000 Differential Pressure Sensor

$51.84 at The Pi Hut

MorningStar RTS > Remote Temperature Sensor w/33' cable

$32.00 at EcoDirect

Adafruit SCD-40 - True CO2, Temperature and Humidity Sensor

$44.95 at Adafruit

SolarEdge SE-ACT-0750-200 > Current Sensor - 200A

$42.00 at EcoDirect

BME688 Environmental Sensor

$28.60 at The Pi Hut

IR distance sensor includes cable (20cm-150cm) (GP2Y0A02YK)

$20.70 at The Pi Hut

Platinum RTD Sensor - PT1000 - 3 Wire 1 meter long

$19.44 at The Pi Hut

Bosch 0986280417 Rotating Speed Sensor 0986280417

$22.99 at Ozautoelectrics

Hella 6PU009146-251 Crankshaft Angle Sensor

$47.80 at Ozautoelectrics

Digital LTR390-UV Ultraviolet Sensor

$12.92 at The Pi Hut

Gravity: I2C H3LIS200DL Triple Axis Accelerometer Sensor (±100g/±200g)

$18.01 at The Pi Hut

SparkFun Pressure Sensor - BMP384 (Qwiic)

$19.45 at The Pi Hut

Gravity: Heart Rate Monitor Sensor for Arduino

$20.69 at The Pi Hut

SHT-30 Mesh-protected Weather-proof Temperature/Humidity Sensor (1M Cable)

$33.47 at The Pi Hut

MSI Forge GK100 Combo – Gaming RGB Keyboard & Mouse Set, 19-Key Anti-Ghosting, 6400 DPI Optical Sensor, 6-Mode RGB, up to 6,400 DPI, Black

$29.99 at Newegg

Gravity: Digital Microwave Sensor (Motion Detection)

$11.56 at The Pi Hut

Digital Temperature & Humidity Sensor (with Stainless Steel Probe)

$38.17 at The Pi Hut

AM2302 (wired DHT22) temperature-humidity sensor

$17.54 at The Pi Hut

SparkFun Qwiic Soil Moisture Sensor

$9.01 at The Pi Hut

Adafruit SHT45 Trinkey - USB Temp and Humidity Sensor with PTFE

$24.52 at The Pi Hut

Adafruit ENS160 MOX Gas Sensor - Sciosense CCS811 Upgrade

$21.95 at Adafruit

Fermion: MAX30102 Heart Rate and Oximeter Sensor V2.0

$20.66 at The Pi Hut

Bosch 0261231148 Knock Sensor

$40.00 at Ozautoelectrics

Gravity: Non-contact Digital Water / Liquid Level Sensor for Arduino

$15.46 at The Pi Hut

ScoutMakes DRV5032 Digital Magnetic Hall Effect Sensor

$8.11 at The Pi Hut

Magnum Energy ME-BTS-25 > Magnum battery temperature sensor w/ 25' cable

$25.00 at EcoDirect

Gravity: 9-Piece Sensor Set

$30.37 at The Pi Hut

Gravity: Flexible Piezo Film Vibration Sensor

$7.69 at The Pi Hut

Gravity: Digital PIR (Motion) Sensor for Arduino

$6.45 at The Pi Hut

Gravity: Analog Alcohol Sensor (MQ3)

$9.01 at The Pi Hut

MAX30101 Breakout - Heart Rate, Oximeter, Smoke Sensor

$28.28 at The Pi Hut

DHT11 Temperature-Humidity Sensor

$5.25 at The Pi Hut

MQ-3 Gas Sensor (Alcohol Ethanol)

$6.60 at The Pi Hut

Mini Laser Distance Range Sensor (4M)

$17.69 at The Pi Hut

PLT-1 Ultimate Plant Sensor

$40.16 at The Pi Hut

Circular Soft Potentiometer (Ribbon Sensor)

$19.37 at The Pi Hut

Magnetic contact switch (Door Sensor)

$4.60 at The Pi Hut

Gravity: I2C IP68 Waterproof Ambient Light Sensor (1-65535lx)

$11.61 at The Pi Hut

Water-proof Ultrasonic Sensor

$25.85 at The Pi Hut

Muscle Sensor Surface EMG Electrodes - H124SG Covidien (Pack of 6)

$6.49 at The Pi Hut

Fermion: BMX160 9-axis Sensor

$18.09 at The Pi Hut

Gravity: Analog Ambient Light Sensor TEMT6000

$7.66 at The Pi Hut

Sharp GP2Y1010AU0F Compact optical Dust Sensor

$14.95 at The Pi Hut

Miniature Reflective Infrared Optical Sensors - 5 Pack (ITR20001/T)

$3.92 at The Pi Hut

60GHz mmWave Breathing and Heartbeat Detection Sensor - MR60BHA2

$34.41 at The Pi Hut

Grove - AHT20 I2C Industrial Grade Temperature and Humidity Sensor

$6.49 at The Pi Hut

Gravity: Analog Turbidity Sensor for Arduino

$12.91 at The Pi Hut

Fermion: SGP40 Air Quality Sensor (Breakout)

$18.90 at The Pi Hut

Gravity: Analog Slide Position (Potentiometer) Sensor for Arduino

$4.71 at The Pi Hut

MQ-5 Gas Sensor (LPG, Natural Gas & Coal Gas)

$6.62 at The Pi Hut

Pololu Digital Distance Sensor 5cm

$25.89 at The Pi Hut

Grove - Digital PIR Motion Sensor (12M)

$5.66 at The Pi Hut

High Temp Waterproof DS18B20 Digital temperature sensor

$14.95 at Evil Mad Scientist