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Airflow & Air Quality - 361 - Extreame Savings! Save up to 44%


Extreame Savings! Up to 44% off on Airflow & Air Quality at In The National Interest. Top brands include Air Ae Steward, IGERESS, Hti-Xintai, Dwyer, ANGGO, Kestrel, Inspeed, TPI, Elgato, Maxim Lighting, Unihedron, AAB, URPRO, ZIYUN, Fluke, & Testo. Hurry! Limited time offers. Offers valid only while supplies last.



6 in 1 Multifunctional Indoor Air Quality Monitor – Track What's in the Air that Surrounds You (with rechargeable battery)
6 in 1 Multifunctional Indoor Air Quality Monitor – Track What's in the Air that Surrounds You (with rechargeable battery)
By Air Ae Steward
In Stock
$179.99
$129.99
You Save: 28%

ean: 0648865492525,

4.4 out of 5 stars with 285 reviews
What does it monitors: Particulate Matter (PM) - Particle pollution that contains microscopic solids or liquid droplets (such as dust, carbon monoxide, carbon dioxide, etc.) that are so small that they can be inhaled and cause serious health problems. Volatile organic compounds (VOCs) - are emitted as gases from certain solids or liquids. It includes a variety of chemicals, some of which may have short- and long-term adverse health effects. Concentrations of many VOCs are consistently higher


IGERESS Indoor Air Quality Monitor Detector Accurate Testing Formaldehyde (HCHO) TVOC PM2.5/PM1.0/PM10 Air Quality Pollution with Temp HUM Real Time Recording Data Logger Monitor for Car Outdoors
IGERESS Indoor Air Quality Monitor Detector Accurate Testing Formaldehyde (HCHO) TVOC PM2.5/PM1.0/PM10 Air Quality Pollution with Temp HUM Real Time Recording Data Logger Monitor for Car Outdoors
By IGERESS
In Stock
$139.99
$109.99
You Save: 21%

mpn: 2, ean: 0695937362637,

4.8 out of 5 stars with 28 reviews
Know What's in the Air You Breathe - IGERESS multifunctional air quality detector, Formaldehyde Monitor TVOC(including benzene) Testing PM2.5/10/1.0/TEM/HUM with real time air quality data record and analysis, smart time display, and HCHO removal calculation. Air Level on the Overall interface - Large LCD Color Screen with English operation system easy to read the testing result, more convenient to use for indoor and outdoor air detect. IGERESS Multi-function Air Quality Monitor is easy to


Hti-Xintai Digital Manometer, Dual Port Air Pressure Meter Pressure Gauge HVAC Gas Tester, Large LCD Display with Backlight(9V Battery Included)
Hti-Xintai Digital Manometer, Dual Port Air Pressure Meter Pressure Gauge HVAC Gas Tester, Large LCD Display with Backlight(9V Battery Included)
By Hti-Xintai
In Stock
$37.19
$35.00
You Save: 6%

mpn: CM-1890, ean: 0735935999081,

4.6 out of 5 stars with 291 reviews
Introduction This HVAC Digital Manometer is a professional instrument to measure gauge. Offering 11 selectable units of measure, Differential Pressure Manometer can serve as a low range/ high-resolution Gauge or provide Differential Pressure up to 0 to 55.4 in. H2O (inches of water). Max/Min recording are useful features, Data Hold and Auto Power Off functions. The also features Zero function for offset correction or measurement. It is ideal for carrying out servicing and troubleshooting on air


Dwyer A-47X-BOOT, Protective Magnetic Rubber Boot for manometers
Dwyer A-47X-BOOT, Protective Magnetic Rubber Boot for manometers
By Dwyer
In Stock
$22.90

mpn: A-47X-BOOT,

4.5 out of 5 stars with 12 reviews
Boot for Manometers: Dwyer Series: 476, 478, 471, 477, 485, 490Rubber boot for Dwyer manometers. Manometers not included.


Dwyer Air Meter Kit, M-460, .02-2.5 cm w.c., 1-20 m/sec with Probes and Carrying case
Dwyer Air Meter Kit, M-460, .02-2.5 cm w.c., 1-20 m/sec with Probes and Carrying case
By Dwyer
In Stock
$43.50

mpn: M460,

4.3 out of 5 stars with 138 reviews
Simple and quick, the No. M460 Air Meter is popular for servicing air conditioning, heating, and ventilating equipment. Direct reading velocity and static pressure scales - both low and high ranges - show supply and return grille velocities, furnace draft, pressure drop across filters, etc. The M460 gives consistent, accurate results with no tedious calibration. Rugged plastic for rough daily use. Dual velocity ranges read 260-1200 and 1000-4000 fpm; pressure ranges from .005-.09 and .05-1.0


ANGGO Digital Wind Speed Anemometer with Thermometer for Personnal Camping Windsurfing Kite Flying Sailing Surfing
ANGGO Digital Wind Speed Anemometer with Thermometer for Personnal Camping Windsurfing Kite Flying Sailing Surfing
By ANGGO
In Stock
$15.99

mpn: GXL816, ean: 0768430222019,

4.0 out of 5 stars with 98 reviews
Functions: Air velocity and temperature measurement; Max / current air velocity measurement; ℃/℉ Temperature unit selection; Five units for air velocity: m/s,Ft/min,Knot,Km/h,Mph Beaufort scale show on the screen. LCD with white backlight; Manual/Auto power shut off to save power; Wind chill indication. Battery power indication. Usage for model plane pilots, shooters, hikers, fly kites and other outdoor enthusiasts Specification: Item Dimension:105(L)*40(W)*18(H)mm


Kestrel 5000 Series Rotating Vane Mount and Tactical MOLLE Carry Case, Series, Berry Compliant
Kestrel 5000 Series Rotating Vane Mount and Tactical MOLLE Carry Case, Series, Berry Compliant
By Kestrel
In Stock
$79.00

mpn: KEST-0783, ean: 0730650002818,

4.3 out of 5 stars with 209 reviews
The Kestrel Portable Vane Mount is the ultimate Kestrel accessory for everyone who needs accurate wind speed and directional data, including artillery specialists and weekend hobby shooters. It is an ingeniously simple accessory designed for extreme light weight and portability. The Kestrel Portable Vane Mount can be coupled with any Kestrel 5000 series meter, including a Kestrel 5500, which creates a data logging weather station capable of tracking changes in the wind direction and speed, then


Magnetic Mount Anemometer Wind Meter by Inspeed
Magnetic Mount Anemometer Wind Meter by Inspeed
By Inspeed
In Stock
$89.00

mpn: MM25, ean: 0000309509730,

4.9 out of 5 stars with 119 reviews
Magnetic mount wind speed measuring device by Inspeed. Popular device for storm spotting and chasing. Many hundreds in use across the world. Includes digital display (Cateye Velo8 bicycle speedometer) and 25' of wire. Handles speeds over 125 mph. Attach it to your vehicle and watch the wind speed from inside - so you don't have to go outside and get wet! For more information check out our web site (inspeed.com).Attaches to (metal) vehicles. Includes Wind sensor, 25' wire, display. For storm


TPI 665 Dual Input Differential Manometer
TPI 665 Dual Input Differential Manometer
By TPI
In Stock
$338.15
$281.00
You Save: 17%

mpn: 665,

4.2 out of 5 stars with 189 reviews
Dual Input Differential Manometer with ±100 psi range and 0.01 psi resolution. Data logging with optional A665 software and docking station. Seven units of pressure: inH2O, mbar, KPa, PSI, mH2O, mmHg, inHg, Auto power off, Record/Min/Max, Backlight display, Zero function, Trim mode to stabilize readings. 1/4” NPT fittings.Differential input with 29 PSI range. Seven units of measure (mbar, kPa, PSI, mmHg, inHg, mH2O, inH2O). Data Logging: Record test data with time stamp and display with


Eve Room - Wireless Indoor Sensor with Apple HomeKit Technology, Bluetooth Low Energy
Eve Room - Wireless Indoor Sensor with Apple HomeKit Technology, Bluetooth Low Energy
By Elgato
In Stock
$159.99

mpn: 10027811, ean: 0813180020429,

4.7 out of 5 stars with 287 reviews
Live smarter by knowing more about the place you care about most. Eve room senses indoor air quality, temperature, and humidity. Learn how to feel better in your home, powered by a sophisticated sensor analyzing volatile organic compounds (VOC). taking advantage of Apple's revolutionary Home Kit technology, Eve offers unparalleled ease of use, advanced security, and tight integration with Siri. Eve room is powered by long-lasting, replaceable batteries, so you don't even have to deal with power


Dwyer® Differential Pressure Digital Manometer Handheld, 475-000-FM, FM Approved, 0-1.0'' w.c.
Dwyer® Differential Pressure Digital Manometer Handheld, 475-000-FM, FM Approved, 0-1.0" w.c.
By Dwyer
In Stock
$261.11

mpn: 475-000-FM,

4.8 out of 5 stars with 204 reviews
The Dwyer® Series 475 Mark III Handheld Digital Manometer is ideal for field calibration, monitoring or trouble shooting HVAC systems, clean rooms or a wide range of other low pressure pneumatic systems. This handy instrument measures positive, negative or Differential Pressures of air and natural gases in ranges from 1'' w.c. (0.249 kPa) to 150 psid (10.34 bar). The Series 475-FM is approved and is intrinsically safe for hazardous locations, Class 1, Div.1, Group A, B,C, D, T4. Its simple


Radon Detector for Home Owner Plus
Radon Detector for Home Owner Plus
By Maxim Lighting
In Stock
$622.24
$350.00
You Save: 44%

mpn: RD200P, ean: 8809513820080,

4.7 out of 5 stars with 71 reviews
The sensitivity performance of Radon eye+(Radon eye plus) is like standard instrument. It is 20 times higher when it is compared with other general customer’s radon detector, so the measurement data is fast and precise. Radon measurement data can be recorded within 1 hour with below 10% error from starting time of measurement and the data will be updated every 10 minute so the user will get to know the decline trend of indoor radon value by ventilation or window open action just 10minutes


Unihedron Sky Quality Meter (SQM)
Unihedron Sky Quality Meter (SQM)
By Unihedron
In Stock
$130.00

mpn: SQM,

4.1 out of 5 stars with 239 reviews
An affordable meter for measuring sky brightness for astronomers! The ''Sky Quality Meter'' measures the brightness of the night sky in magnitudes per square arcsecond. Designed by Dr. Doug Welch and Anthony Tekatch, the Unihedron Sky Quality Meter offers unprecedented sensitivity in a handheld meter. Uses: -Find out how good the night or site REALLY is. -Compare the sky brightness at different sites quantitatively. -Document the evolution of light pollution in your area. -Set planetarium dome


AAB TS-100-6PK Tempsmart Temperature and Humidity Data Logger Kit with 6 m
AAB TS-100-6PK Tempsmart Temperature and Humidity Data Logger Kit with 6 m
By AAB
In Stock
$225.00

mpn: TS-100-6PK, ean: 0850470006107,

4.0 out of 5 stars with 200 reviews
AAB TS-100-6PK Tempsmart Temperature and Humidity Data Logger Kit with 6 mThe TS-100-6PK makes deploying the TempSmart data loggers easier and even more cost affordable. The 6-Pack comes with 6 of the TS-100 meters in an ergonomic carrying case. Once deployed, each TS-100 can be assigned a custom name to make it easy to identify the location and track the building conditions. Can also be mounted on the EXP-64 Extension Pole & TRI-MIN Tripod. Weather resistant housing protects the sensors while


URPRO Anemometer, Digital Mini Back Light LCD Wind Speed Gauge Air Flow Speed Meter & Temperature Thermometer HT-91
URPRO Anemometer, Digital Mini Back Light LCD Wind Speed Gauge Air Flow Speed Meter & Temperature Thermometer HT-91
By URPRO
In Stock
$17.90

ean: 0602860875677,

4.1 out of 5 stars with 90 reviews
Features Memory Recall : Record and Recall MAX / MIN readings Multiple SI units: m/s, km/h, fpm, mph, or knots Switchable between °C or °F Data Hold function Back light display Built-in rotating vane sensor with auto-power off function Auto/Manual power-off with low battery indicator Operating Temperature: 0 ~ 50 °C (32 ~ 122 °F) Operating Humidity: 0 ~ 75%RH, non-condensing Powered by 1 x 9V battery (included) Power Consumption : Approx. 8.3mA DC Size: approx. 20 x


ZIYUN In Grove Dust Sensor,Detection Cigarette Smoke,House Dust Which Are Indoor Asthma Triggers,Detection Air Quality(An Environment Measuring The Dust Concentration)
ZIYUN In Grove Dust Sensor,Detection Cigarette Smoke,House Dust Which Are Indoor Asthma Triggers,Detection Air Quality(An Environment Measuring The Dust Concentration)
By ZIYUN
In Stock
$23.96

mpn: 1, ean: 0736104486296,

4.5 out of 5 stars with 187 reviews
This Dust Sensor gives a good indication of the air quality in an environment by measuring the dust concentration. Sensor is to create Digital (Lo Pulse) output to Particulate Matters (PM). The Particulate Matter level (PM level) in the air is measured by counting the Low Pulse Occupancy time (LPO time) in given time unit. LPO time is proportional to PM concentration. This sensor can provide reliable data for air purifier systems; it is responsive to PM of diameter 1μm. Note: This sensor


Dwyer Series 160 (167-12) Stainless Steel Pocket Size Pitot Tube, 1/8'' Diameter, 12'' Insertion Length
Dwyer Series 160 (167-12) Stainless Steel Pocket Size Pitot Tube, 1/8" Diameter, 12" Insertion Length
By Dwyer
In Stock
$82.50
$75.43
You Save: 9%

mpn: 167-12, ean: 0094700752901,

4.4 out of 5 stars with 107 reviews
Ideal for use with our precision manometers and air velocity gauges, Dwyer® Pitot Tubes are constructed from corrosion resistant stainless steel for a lifetime of service. ASME design meets AMCA and ASHRAE specifications for maximum accuracy over a wide variety of flow conditions. No correction factors required as ASHRAE tip design yields a calibration factor of 1. ASHRAE design needs no calibration! Permanent, stamped insertion depth graduations on sides of 160 series facilitate accurate


Fluke VPS210-G 5 Piece Double Insulated Voltage for 190 Series ScopeMeter, 1.2m Cable Length, 10x Attenuation, Gray
Fluke VPS210-G 5 Piece Double Insulated Voltage for 190 Series ScopeMeter, 1.2m Cable Length, 10x Attenuation, Gray
By Fluke
In Stock
$199.99
$160.87
You Save: 20%

mpn: VPS210-G, ean: 0095969435789,

4.3 out of 5 stars with 64 reviews
Probe set includes 600V CAT III / 1000V CAT II rated 10:1 voltage probe, hook clip for probe tip, ground lead with mini alligator, insulation sleeve, 30V CAT II rated ground spring for probe tip. Attenuation: 10x. Bandwidth: 200 MHz. Maximum input voltage: 1000V CAT II or 600V CAT III. Maximum voltage to ground: 1000V CAT II or 600V CAT III per IEC / EN61010-031. Input resistance: 10 mega ohms. Input capacitance: 12 pF. Compensation range: 10 to 22 pF. Cable length: 1.2m. One gray. UL Listed.


Fluke I2000 FLEX Flexible AC Current Clamp, 600V AC/DC Voltage, 2000A AC Current
Fluke I2000 FLEX Flexible AC Current Clamp, 600V AC/DC Voltage, 2000A AC Current
By Fluke
In Stock
$442.99
$379.98
You Save: 14%

mpn: I2000 FLEX, ean: 0095969345088,

4.0 out of 5 stars with 74 reviews
The i2000 is an AC current probe utilizing the Rogowski principle. It can be used to measure currents up to 2000A when used in conjunction with multimeters, recorders or data loggers. The flexible and lightweight measuring head allows quick and easy installation in hard to reach areas. Three ranges: 20A, 200 A & 2000 A, 100 mV/A, 10 mV/A & 1 mV/A output. Ideal for current measurement on thick and hard to reach conductors without breaking the circuit. Maximum conductor diameter 178mm. CAT III


Testo 0563 0510 01 510 Differential Manometer Kit
Testo 0563 0510 01 510 Differential Manometer Kit
By Testo
In Stock
$159.00

mpn: 0563 0510 01,

4.6 out of 5 stars with 266 reviews
The Testo 510 digital manometer is an all in one, low pressure measurement solution. The 510 can measure total external static pressure, differential pressure, duct velocities, manifold pressures, and air flow with pilot tube (optional). carry out pressure difference measurements at a/C system filters or air flow measurements in ventilation ducts using a pilot static tube. Field tested and ideal for installation and maintenance work in and around ventilation and air conditioning.0 to 40 inch.



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