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Multi Testers - 303 - Huge Savings! Save up to 15%


Huge Savings! Up to 15% off on Multi Testers at Humble Opinion. Top brands include EG, GIMAX, HATOLY, Unknown, SQLang, Boger, MonkeyJack, Fdit, Qisuw, NKTECH, MXBAOHENG, KINGZER, KKmoon, Dovewill, CNYST, & General Tools. Hurry! Limited time offers. Offers valid only while supplies last.



Air Quality Pollution Monitor, Detector, Meter, Sensor, Tester; Detect PM2.5 Dust, Test Indoor Formaldehyde, TVOC Volatile Organic Compound; eBook (w/o Water Test Strips)
Air Quality Pollution Monitor, Detector, Meter, Sensor, Tester; Detect PM2.5 Dust, Test Indoor Formaldehyde, TVOC Volatile Organic Compound; eBook (w/o Water Test Strips)
By EG
In Stock
$96.87

ean: 0761856503052,

Manufactured by the company that hold this product's design rights, you can be confident this item is tried & tested; otherwise, any return cost is on us. As the only US based retailer of this item, we have a chemist on staff to answer any technical ...


Digital Formaldehyde Detector HCHO TVOC AQI Meter Home Air Gas Quality Tester
Digital Formaldehyde Detector HCHO TVOC AQI Meter Home Air Gas Quality Tester
By GIMAX
In Stock
$49.49

mpn: GMX-287F4C03D4C5964B5E8B5A492C5B43D6, ean: 0754628738721,

Features: -The formaldehyde detector meter is adopted quality PE material for shell, good touch feeling, non-toxic, eco-friendly and durable to use.-Big electronic screen, clear display, convenient for your reading.-Strong anti-interference, detect ...


Professional Digital Formaldehyde Detector HCHO TVOC Detector Air Quality Tester Analyzer
Professional Digital Formaldehyde Detector HCHO TVOC Detector Air Quality Tester Analyzer
By GIMAX
In Stock
$40.29

mpn: GMX-7710411EA4C0739E5705ABF415EAA185, ean: 0754628737847,

Descriptions:Are you worried about the formaldehyde of your newly decorated home? Do you know the bad air condition in your car that will cause big harm to you health? Do you want a air quality detector meter that can help you analyze the air around ...


Multifunctional Air Quality Pollution Monitor Formaldehyde Detector Home Office
Multifunctional Air Quality Pollution Monitor Formaldehyde Detector Home Office
By GIMAX
In Stock
$65.99

mpn: GMX-0D7FA949AE47212E7CC2521AAD1D164B, ean: 0754628740946,

Features: - Accurate detects Formaldehyde(HCHO), TVOC, PM2.5 , real time testing record and analyzed,hazard level with time display.- Affordable and portable to monitor air quality, micro USB and power adapter for charging!- Applications: Home(Kitch...


PM2.5 Monitor,Indoor and Outdoor Air Quality Detector for Detecting PM1.0, PM10.0, PM2.5, AQI, Temperature, Humidity, Particulate Matter,Portable and Accurate
PM2.5 Monitor,Indoor and Outdoor Air Quality Detector for Detecting PM1.0, PM10.0, PM2.5, AQI, Temperature, Humidity, Particulate Matter,Portable and Accurate
By HATOLY
In Stock
$57.99
Features:2.8" TFT screen, colorization display, wide angle vision up to 180°. High sensitivity sensor ensures the high accuracy in data collections. Multipurpose in air quality detection in PM1.0, PM10.0, PM2.5, AQI, temperature, humidity, particula...


R134A Manifold Gauge Set AC A/C 6FT Colored Hose Air Conditioner w/Case Red New
R134A Manifold Gauge Set AC A/C 6FT Colored Hose Air Conditioner w/Case Red New
By Unknown
In Stock
$99.99

ean: 0797874150022,

This is our brand new manifold gauge set which can be used for automobiles and home air conditioning units and is perfect for maintaining R134a air conditioning systems. It is suitable for use at home or auto shop. Don't hesitate to buy it now! Featu...


SQLang Electromagnetic Radiation Detector LCD Digital EMF Meter Dosimeter Tester DT1130
SQLang Electromagnetic Radiation Detector LCD Digital EMF Meter Dosimeter Tester DT1130
By SQLang
In Stock
$13.99

mpn: SQLang, ean: 0726577465201,

Description: Brand new and high quality Ideal for household appliances, Office, computer room, control room, cable, power cables, monitors, etc. To measure electromagnetic radiation from cell phones, computers, copiers, fax machines, air conditioners...


Boger GM8801 High Sensitive Formaldehyde Detector Meter HCHO Air Quality Testing Gas Analyzer Tester
Boger GM8801 High Sensitive Formaldehyde Detector Meter HCHO Air Quality Testing Gas Analyzer Tester
By Boger
In Stock
$59.92

mpn: lluuogk01008, ean: 0065600260155,

Description:A perfect multi-function testing tool to monitor the air quality, a safeguard for family health.Suitable to use at home, office, in the car ,outdoor and other environmental testing.Accurate & Reliable - HD digital LCD display,quick show o...


MonkeyJack Hand-held HT-1890 Digital Differential Pressure Gauge Barometer Professional Digital Air Pressure Meter & hvac Manometer
MonkeyJack Hand-held HT-1890 Digital Differential Pressure Gauge Barometer Professional Digital Air Pressure Meter & hvac Manometer
By MonkeyJack
In Stock
$40.99

mpn: 2fd60bab90230b28ccc213b76c238b5a, ean: 0780116330627,

Description:-SMART DUAL INPUT - manometer can easily measure the differential pressure with its dual input probes.-RANGE & RESOLUTION - Measures +/- 2.000psi (0.001 resolution) with accuracy +/-0.3% in full scale,MAX PRESSURE - 10psi (Can resist up t...


Fdit 11 Unit Portable Digital Manometer LCD Display Differential Manometer Air Gauges Pressure Meter Black
Fdit 11 Unit Portable Digital Manometer LCD Display Differential Manometer Air Gauges Pressure Meter Black
By Fdit
In Stock
$66.99

mpn: Fdittq6d3i18vg, ean: 0663862918403,

Specification: Model SW-512 Measuring Unit kPa Measuring Range: ±13.79 Resolution: 0.01 mm Hg  Measuring Range: ±103.4 Resolution: 0.1 in Hg Measuring Range: ±4.072 Resolution: 0.001 psi Measuring Range: ±2.000 Resolution: 0.001 m bar Measuring ...


Qisuw Pressure Gauge-Air Conditioner Three-Way Single Manifold Gauge Valve R134A R404A R22 R410A (Red)
Qisuw Pressure Gauge-Air Conditioner Three-Way Single Manifold Gauge Valve R134A R404A R22 R410A (Red)
By Qisuw
In Stock
$12.69

ean: 0794917560886,

Air Conditioner Three-Way Single Manifold Gauge Valve R134A R404A R22 R410A Specifications: Brand new Color: Blue/Red Low pressure (blue): 0-500PSI High pressure (red): 0-800PSI Thread diameter: approx. 10mm/0.39" Dial Diameter: 72mm/2.83" Overall S...


NKTECH Air Quality Detector A25F+ Formaldehyde PM2.5 Monitor Meter Laser Temperature Humidity for Outdoor Indoor Environmental Accurate Testing Auto Power off Emoticon Display Tester
NKTECH Air Quality Detector A25F+ Formaldehyde PM2.5 Monitor Meter Laser Temperature Humidity for Outdoor Indoor Environmental Accurate Testing Auto Power off Emoticon Display Tester
By NKTECH
In Stock
$89.99

mpn: NKPM25F25DMT,

Features: Formaldehyde concentration. Precise PM2.5 concentration based on pre-calibrated sensors. Temperature measurement (℃/℉). Humidity measurement. Emoticon display. LCD backlight and red backlight alarm. Battery status, low power, auto...


KT-401 Air Ion polarity and concentration Tester Meter Counter -Ve Negative Ions With Peak Maximum Hold
KT-401 Air Ion polarity and concentration Tester Meter Counter -Ve Negative Ions With Peak Maximum Hold
By MXBAOHENG
In Stock
$72.40

mpn: Daphne020, ean: 6068183204329,

KT-401 Air Ion polarity and concentration Tester Meter Counter -Ve Negative Ions With Peak Maximum Hold Features: 1. Simple and small design, easy to carry 2. Tiny shape 3. Very easy to hang as a necklace 4. Display concentration of positive an...


Kingzer HP-856A Digital Anemometer Wind Speed/Air Flow/Temperature Meter Thermometer w/USB & 600 Data Records
Kingzer HP-856A Digital Anemometer Wind Speed/Air Flow/Temperature Meter Thermometer w/USB & 600 Data Records
By KINGZER
In Stock
$97.98

mpn: KING8A0445, ean: 0799637430228,

Features:Wind Speed/Air Flow/Temperature measurementWing Speed Range: 0-45m/sTemperature Range: 0-45¡æWind flow range: 0-999900m3/minLCD Back LightManual/Auto Power OffWind Speed Unit Selection: m/s, Ft/min£¬Knots, Km/hr, MphMax/Average/CurrentDa...


KKmoon Multifunctional Handheld DIY Air Heater High Temperature Blower Heat Machine Electric Power Tool
KKmoon Multifunctional Handheld DIY Air Heater High Temperature Blower Heat Machine Electric Power Tool
By KKmoon
In Stock
$18.99

mpn: GZM7681831307686ZG,

This multifunctional air heater can meet the most needs in daily life. You can use it to mold the soft clay, pack the seal, melt the wax and hand soap. And there's a lot of features that you'll find.Features: Rapidly warming in 5 seconds, quickly in ...


Dovewill 1-15L Oxygen Air Gas Flowmeter with Copper Control Valve 20 (℃) 0.1 (MPa) - Multi, 1-15L
Dovewill 1-15L Oxygen Air Gas Flowmeter with Copper Control Valve 20 (℃) 0.1 (MPa) - Multi, 1-15L
By Dovewill
In Stock
$13.99

mpn: 59d41e3e358197dfdf25b4f424425b71, ean: 0051716791508,

Description:Working pressure: 0.1 (MPa)Applicable medium: OxygenWorking temperature: 20 (℃)Scope: Widely used in household oxygen, ozone machineLight weight, not fragile, corrosion-resistant, long service lifeSpecification:Nominal diameter: 6 (mm)A...


Digital Manometer Differential Pressure Gauge LCD Display Handheld Air Pressure Measuring Meter Data Hold Function Portable Differential Pressure Tester Meter with Pressure Range ±2psi Color Black
Digital Manometer Differential Pressure Gauge LCD Display Handheld Air Pressure Measuring Meter Data Hold Function Portable Differential Pressure Tester Meter with Pressure Range ±2psi Color Black
By CNYST
In Stock
$35.00

mpn: CNYST, ean: 0652054886118,

Shipping Policy : Battery and Liquid not included during the shipping Technical Specifications * Pressure Range:±2psi * Accuracy:±0.3% FSO (at 25°C) * Repeatability:±0.2% (Max±0.5%FSO) * Linearity/Hysteresis:±0.29% FSO * Response Time:0.5sec * ...


Multifunctional Air Quality Pollution Monitor Home Indoor Formaldehyde Detector Tester
Multifunctional Air Quality Pollution Monitor Home Indoor Formaldehyde Detector Tester
By GIMAX
In Stock
$61.39

mpn: GMX-2EE34C96CF7A02E87B21A17D3FAE2938, ean: 0754628743350,

Features:- Material: Plastic- Color: White+Black- Multipurpose in air quality detection in Gimax, TVOC, API, temperature&humidity- High sensitivity sensor ensures the high accuracy in data collections- Real-time detection results will be shown on scr...


Portable Air Quality Detector Digital Formaldehyde Gas Monitor LCD HCHO & TVOC Tester Instrument Meter Air Analyzer
Portable Air Quality Detector Digital Formaldehyde Gas Monitor LCD HCHO & TVOC Tester Instrument Meter Air Analyzer
By GIMAX
In Stock
$30.59

mpn: GMX-03B0B7CE7CCDD26B7AF6BA5D9999F642, ean: 0754628739452,

Descriptions:Are you worried about the formaldehyde of your newly decorated home? Do you know the bad air condition in your car that will cause big harm to you health? Do you want a air quality detector meter that can help you analyze the air around ...


General Tools DAF3009 Compact Mini Anemometer/Psychrometer
General Tools DAF3009 Compact Mini Anemometer/Psychrometer
By General Tools
In Stock
$92.72
$78.91
You Save: 15%

mpn: DAF3009, ean: 0681035016961,

4.9 out of 5 stars with 38 reviews
General Tools & Instruments DAF3009 Compact Mini Anemometer/Psychrometer is ideal for measuring all parameters, including airflow volume and enthalpy of evaporation, needed to install, test and fine-tune the performance of an HVAC/R system. Airflow V...



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