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Under $20 Air Quality Meters

Shop the best prices on 803 great value under $20 air quality meters. Shopping for air quality meters is easy with Fruugo, with SALE discounts, offers and savings on Elsavct. Buy air quality meters online safely with Fruugo, with secure payment and fast shipping to Singapore.

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1 - 32 of 803
Air Quality Monitor 5 in 1 Air Quality Detector C02 Detector HCHO TVOC Tester LCD Temperature Humidity Tester Black
$16.95 Save $37.05 RRP: $54.00
MT03 3 in 1 Air Quality Monitor CO2 Temperature Humidity Tester CO2 Detector Carbon Dioxide Detector White
$17.95 Save $11.00 RRP: $28.95
NOYAFA Portable Formaldehyde Detector Indoor Air Quality Monitor HCHO and TVOC Monitor with Audible 2025
$17.95 Save $18.00 RRP: $35.95
5-in-1 Air Quality Monitor Levels Temperature & Humidity Detector with LCD Display Indoor Sensor White
$19.95 Save $4.00 RRP: $23.95
Seawater Salinity Refractometer Portable Handheld Salinity Meter Atc Salinometer Aquarium Halometer Salt Gauge Saltwater Tester
$13.95 Save $4.00 RRP: $17.95
Argon Regulator Meter Co2 Flowmeter High Precision Gas Measuring Device Flow Meter
$21.95 Save $42.05 RRP: $64.00
Level 4 Air Quality Module, VOC, Formaldehyde, and Benzene Detection Module, ZP07 Air Quality Detection Probe
$7.95
Air Quality Monitor 5 in 1 Air Quality Detector C02 Detector HCHO TVOC Tester LCD Temperature Humidity Tester Black
$18.95 Save $11.00 RRP: $29.95
3 in 1 CO2 Meter Air Quality Monitor Handheld 5000Ppm CO2 Monitor Measurement Carbon Dioxide / Detector S8601
$20.95 Save $58.05 RRP: $79.00
Air Quality Monitor - Indoor Formaldehyde Detector, TVOC Tester for Home & Office
$17.95 Save $9.00 RRP: $26.95
Dtecteur de dioxyde de carbone CO2 pour la qualit de l'air, la temprature et l'humidit, mesure rapide du CO2, blanc Edition 0120
$19.95 Save $49.05 RRP: $69.00
Air Quality Monitor 5 in 1 Air Quality Detector C02 Detector HCHO TVOC Tester LCD Temperature Humidity Tester Black
$20.95 Save $16.00 RRP: $36.95
CO2 Detector with Display Screen ABS Battery USB Charging Multi Function CO2 Monitor Meter for Indoor Office Bedroom
$21.95 Save $6.00 RRP: $27.95
Pressure Gauge 0‑60 PSI 1/4in NPT 2in Dial Clear Display Stainless Iron Axial Pressure Gauge for Air Water Fuel
$17.95 Save $21.00 RRP: $38.95
Car Mass Air Flow Sensor XF2F12B579BA for Focus Escort Escape Exporler 1999-2004 XF2Z12B579AB Senso
$20.95 Save $48.05 RRP: $69.00
Formaldehyde Detector for Household Professional Self-Test RC3001
$17.95
GP2Y1010AU0F Compact Optical Dust Sensor Smoke Particle Sensor
$13.95
6-in-1 Air Quality Detector: Monitor PM2.5, PM10, HCHO, TVOC, CO, CO2 - dwdz
$20.95 Save $21.00 RRP: $41.95
SGP30 Gas Sensor Module TVOC/ECO2 Indoor Air Quality Formaldehyde Carbon Dioxide Measurement Sensor Board IIC Interface
$16.95 Save $4.00 RRP: $20.95
Air Flow Sensor Adapter Intake Meter Mount Base for Toyota Mazda 3 6 Subaru Suzuki 77mm
$19.95 Save $19.00 RRP: $38.95
Mold Detector For Home - Accurate Testing Kit With Real-time Display unbrand
$11.95 Save $8.00 RRP: $19.95
TVOC Detection Module for Air Quality Monitoring with ECO2 Sensor Chip
$14.95 Save $34.00 RRP: $48.95
Wet & Dry Bulb Hygrometer Thermometer Wall-Mounted Temperature for Labs Room unbrand
$22.95
Air Quality Sensor Module Blue GY- SGP30 eCO2 Formaldehyde Detector Module
$20.95 Save $13.00 RRP: $33.95
22204-27010 Mass Air Flow Sensor for Mk2 2.0 D4D AFH70M-23 AFH70M23
$12.95 Save $12.00 RRP: $24.95
MT05 Indoor Air Quality Monitor TVOC HCHO Temperature Humidity Tester CO2 Meter USB Rechargeable CO2 Detector White
$16.95 Save $10.00 RRP: $26.95
Level 4 Air Quality Module, VOC, Formaldehyde, and Benzene Detection Module, ZP07 Air Quality Detection Probe
$10.95 Save $6.00 RRP: $16.95
5-in-1 Air Quality Monitor Levels Temperature & Humidity Detector with LCD Display Indoor Air Quali
$18.95 Save $55.05 RRP: $74.00
Large-Screen Temperature and Humidity Detector, CO2, Formaldehyde, and TVOC Detector,Multi-Functional Air Detector Black
$20.95 Save $13.00 RRP: $33.95
D7B PM2.5 Laser Dust Particle Sensor Module Detects Indoor Gas Air Quality Detection Plantower for Purifier
$20.95 Save $13.00 RRP: $33.95
DOCREATE Multifunctional 5in1 CO2 Formaldehyde Meter Digital TemperatureHumidity Tester CO2 PM2.5 Detector Air Quality Monitor B
$21.95 Save $15.00 RRP: $36.95
TVOC Gas Sensor Expansion Board Module UART Communication Support TVOC/CH2O/CO2 for //for /ESP32
$18.95 Save $6.00 RRP: $24.95