Fluke 805ES External Vibration Sensor for 805 Vibration Meter
MQ-301X: Line Quantum with 10 Sensors and Handheld Meter - Apogee Instruments, Inc.
Liquid Flow Meter - Plastic 1/2 NPS Threaded : ID 828 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Gravity: Analog Industrial pH Sensor / Meter Pro for Arduino - V2 - DFRobot
MQ-200X Quantum Separate Sensor with Handheld Meter | Apogee Instruments
Amazon.com: DIGITEN 4 Digital Red LED Tachometer RPM Speed Meter + Hall Proximity Switch Magnet Sensor NPN for Lathe Conveyor Belt : Industrial & Scientific
Amazon.com: DIGITEN 4 Digital Green LED Tachometer RPM Speed Meter + Hall Proximity Switch Magnet Sensor NPN for Lathe Conveyor Belt : Industrial & Scientific
Gravity™ Analog pH Sensor / Meter | Atlas Scientific
DIGITEN G1" Water Flow Hall Effect Sensor Switch Flow Meter 1-60L/min
ec meter - DFR0300 - Gravity: Analog Electrical Conductivity Sensor - DFRobot
PH_meter_SKU__SEN0161_-DFRobot
Gravity: Analog pH Sensor - Meter Kit — Arduino Official Store
Flow Sensors / Flow Meters | KEYENCE America
Water Flow Sensor Meter Flowmeter Totameter | Digital Flow Meter Inch - Digital Lcd - Aliexpress