here!
I’m your shopping assistant for PC builds, upgrades, and everything tech.
Got questions? Ask away!
Start a conversation
"monitors"
- New
Can’t find the filter you need? Let AI help.
I'm Celeste, Newegg's tech expert! Need help with "monitors"?
CO2 Meter Indoor Air Quality Meter CO2 Monitor 9999ppm Carbon Dioxide Temp. Humidity Meter NDIR Sensor Detector
Limited time offer, ends 11/07
$397.70
Free Shipping
Portable CO2 Meter Handheld CO2 Detector Monitor 0~9999ppm, Carbon Dioxide Meter with Alarm Function, Temperature & Humidity Meter NDIR Sensor Air Quality Monitor for Home Trip Classroom and Office
Limited time offer, ends 11/07
$403.70
Free Shipping
0-14 pH Electrode Probe BNC Connector, 300cm Cable for PH Meter Monitor Controller Test Sensor, Replacement Kit for Aquarium Hydroponics Plant Pool Spa
Limited time offer, ends 11/07
$52.70
Free Shipping
0-14 pH Electrode Probe BNC Connector, 300cm Cable for PH Meter Monitor Controller Test Sensor, Replacement Kit for Aquarium Hydroponics Plant Pool Spa (pH Electrode)
Limited time offer, ends 11/07
$58.70
Free Shipping
Watt Power Meter Plug-in Socket Power Meter, Home Electrical Usage Monitor Consumption, Kilowatt Wattage Voltage AMP Tester with Backlight Overload Protection
Limited time offer, ends 11/07
$67.97
Free Shipping
CO2 Meter Air Quality Monitor Smart CO2 Monitor Carbon Dioxide Temperature Humidity Detector for Indoor and Outdoor
Limited time offer, ends 11/07
$238.97
Free Shipping
Digital PH/ORP Controller with Monitoring and Dosing in Water Digital pH Meter Redox Temp Tester App Remote Online Monitor for Swimming Pool Aquaculture Fishpond
Limited time offer, ends 11/07
$295.70
Free Shipping
WiFi Soil Moisture Meter, 3-in-1 Smart Soil Tester for EC/Temp/Moisture, Wireless Plant Monitor with App, High Precision Digital Soil Sensor for Indoor Outdoor Garden & Lawn(Solar Powered)
Limited time offer, ends 11/07
$118.97
Free Shipping
5-in-1 WiFi pH Meter Monitor, Water Quality Tester for pH TDS Salinity S.G Temperature, Tuya Smart APP Remote Monitoring with Alarm & Easy Calibration, for Aquarium Hydroponics
Limited time offer, ends 11/07
$166.70
Free Shipping
5-in-1 Water Quality Multi-Parameter PH EC CF TDS (ppm) Temperature Test Meter Backlight, Wall-mountable Rechargeable Continuous Monitor Tester, Aquariums Hydroponics Pool Fish Tank Pond Drinking
Limited time offer, ends 11/07
$208.97
Free Shipping
Smart Water Quality Monitor, 7-in-1 pH | Temperature | TDS | EC | Salinity | S.G & ORP WiFi Water Quality Tester Probe, EC pH Monitor for Hydroponics, Aquarium, 24/7 Real-Time Monitoring
Limited time offer, ends 11/07
$238.70
Free Shipping
ORP Redox Electrode, BNC Type Connector Replacement Probe for Tester Meter Monitor Controller Oxidation Reduction Potential Check, 14cm Long 1.2cm Diameter 300cm Extra Long Cable
Limited time offer, ends 11/07
$88.70
Free Shipping
CO2 Controller Carbon Dioxide Controller CO2 Meter Monitor with Relay Function 4.5m Cable NDIR Carbon Dioxide Sensor Probe for Grow Room, Plant, Grow Tent, Greenhouse, Garden, Indoor
Limited time offer, ends 11/07
$376.70
Free Shipping
Hydrogen Sulfide Detector H2S Monitor 0~100ppm Electrochemical H2S Sensor LED Alarm with LCD Screen Backlight Portable Tester
Limited time offer, ends 11/07
$154.37
Free Shipping
Gain Express Body Fat Caliper Skinfold Caliper Professional Skin Thickness Fat Measure Body Fat Tester, Body Fat Monitors for Health Monitoring Handheld BMI Body Fat Measurement Device
Limited time offer, ends 11/07
$40.70
Free Shipping
Hydrogen Sulfide Detector Portable H2S Detector Monitor with Sound and Flash Alarm 0~100ppm Electrochemical H2S Sensor with Clip and LCD Screen Backlight
Limited time offer, ends 11/07
$154.37
Free Shipping
CO2 Controller Carbon Dioxide Monitor CO2 Smart Sensor Dual Outlets Fit with CO2 Regulators and Fans, Two Plug C02 Control for Grow Room, Grow Tent, Greenhouse
Limited time offer, ends 11/07
$328.70
Free Shipping
Right Angle DC to DC Male Power Cable,22AWG DC 5.5MM x 2.1MM Male to 90 Degree DC Male Plug Patch Wire Adapter Extension Cord for Strip Lihgt,CCTV,Car,Monitors,etc(2 Pcs) (Pack of 2)
Limited time offer, ends 11/04
$28.70
Free Shipping
2 Pack 90 Degree DC Power Pigtails Cable, Right Angle DC 5.5mm x 2.5mm Male Plug to Bare Wire Open End Power Supply Replacement Repair Cord, for Monitors, LED Strip Light, Camera,3FT 1m
Limited time offer, ends 11/09
$18.99
Free Shipping
CO2 Controller Carbon Dioxide Controller CO2 Meter Dector Monitor Day and Night CO2 Control Relay Function 4.6m Long Cable Dual Channel Low Drift NDIR Sensor for Green House Grow Room Factory Home Off
Limited time offer, ends 11/07
$466.37
Free Shipping
FNIRSI GC-03 3-in-1 Geiger Counter Nuclear Electromagnetic Detector | 3 Display Modes, Real-Time Radiation Monitor, Portable Gamma Beta X-ray DosimeterRechargeable EMF Meter, No RF Detection
Limited time offer, ends 11/07
$238.97
Free Shipping
FNIRSI GC-03 3-in-1 Geiger Counter Nuclear Electromagnetic Detector | 3 Display Modes, Real-Time Radiation Monitor, Rechargeable EMF Meter, Portable Gamma Beta X-ray DosimeterNo RF Detection
Limited time offer, ends 11/07
$238.97
Free Shipping
KW310 OBD2 Scanner Professional OBD II Auto Fault Code Reader Automotive Check Engine Light Diagnostic EOBD Scan Tool for All OBDII Protocol Cars Since 1996
Limited time offer, ends 11/19
$26.50
Free Shipping
![OBD2 Scanner [KW310] Car Code Reader Scan Tool Auto OBD2 Scanner Professional Mechanic OBDII Diagnostic Tool Code Reader Tools for Check Engine Light--for All OBDII Protocol Cars Since 1996](https://c1.neweggimages.com/productimage/nb300/AD8FS210605nPRQQ.jpg "OBD2 Scanner [KW310] Car Code Reader Scan Tool Auto OBD2 Scanner Professional Mechanic OBDII Diagnostic Tool Code Reader Tools for Check Engine Light--for All OBDII Protocol Cars Since 1996")
![[ETL Listed] Cable Matters 3-Pack 15A 1875W 3 Way Plug Adapter, Multicolor | Power Splitter, 3 Outlets, Grounded Outlets, Compact Tap Design, Space-Saving Splitter](https://c1.neweggimages.com/productimage/nb300/C5CRD2603050K06GE4F.jpg "[ETL Listed] Cable Matters 3-Pack 15A 1875W 3 Way Plug Adapter, Multicolor | Power Splitter, 3 Outlets, Grounded Outlets, Compact Tap Design, Space-Saving Splitter")