TSI 7525 IAQ Meter is an outstanding instrument for investigating and monitoring indoor air quality (IAQ). TSI 7525 IAQ meter measures CO2, temperature, humidity, and calculates dew point, wet bulb temperature, and % outside air.
Product made in USA and comes with NIST Certificate of Calibration.
- TSI 7525 IAQ-Calc Air Quality Meter
- Accurate and stable Low-drift NDIR CO2 sensor
- Help determine thermal comfot with temperature and humidity measurements
- Wet bulb and dew point calculations available
- Show up to 3 parameters simultaneously
- Data can be downloaded to PC
- Includes TSI LogDat2 software
- Multiple point measurements with Sampling function
- Overmolded case design is ergonomic and sturdy
- Includes
- NIST calibration certificate, carrying-case, (4) AA alkaline batteries, user's manual, Logdat2 downloading software with USB cable and AC adaptor
Specifications: | TSI 7525 IAQ-Calc Air Quality Meter |
CO2 | |
Sensor Type | Dual-wavelength NDIR (non-dispersive infrared) |
Range | 0 to 5,000 ppm |
Accuracy | ±3.0% of reading or ±50 ppm, whichever is greater |
Resolution | 1 ppm |
Response Time | 20 seconds |
Temperature | |
Sensor Type | Thermistor |
Range | 32 to 140°F (0 to 60°C) |
Accuracy | ±1.0°F (±0.5°C) |
Resolution | 0.1°F (0.1°C) |
Response Time | 30 seconds (90% of final value, air velocity at 400 ft/min [2 m/s]) |
Relative Humidity | |
Sensor Type | Thin-film capacitive |
Range | 5% to 95% RH |
Accuracy | ±3.0% RH |
Resolution | 0.1% RH |
Response Time | 20 seconds (for 63% of final value) |
Percentage Outside Air | |
Range | 0 to 100% |
Resolution | 0.1% |
Logging Capability | |
Ranges | Model 7525 logs up to 30,300 data points with key (3) measured parameters enabled |
Time Constant | 1 sec, 5 sec, 10 sec, 20 sec, 30 sec (user selectable) |
Log Intervals | 1 second up to 1 hour (user selectable) |
General | |
Operating Temperature | 40 to 113°F (5 to 45°C) |
Storage Temperature | -4 to 140°F (-20 to 60°C) |
Dimensions | 3.3 in. x 7.0 in. x 1.8 in. (8.4 cm x 17.8 cm x 4.4 cm) |
Probe Dimensions | Length 7.0 in. (17.8 cm) Diameter 0.75 in. (1.9 cm) |
Weight | 0.6 lbs (0.27 kg) |
Power Requirements | Four AA-size batteries |
Proposition 65 Warning for California Residents: This product can expose you to chemicals including Benzene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Applications: | TSI 7525 IAQ-Calc Air Quality Meter |
Great for verification of HVAC system performance, IAQ conditions and adherence to guidelines and regulations |
Software-Accuracy
The logdat software that TSI makes is a very effective tool and better than the throw away programs that some other devices can come with. Also super accurate and factory calibrated. Top of the line. Get what you pay for.
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9 of 10 Found Helpful
Reviewed by: (Verified Buyer) Lamar Glover from .
on 4/13/2018
5
excited
Fast load screen. lets you get right to work. Easy to read screen that is large font. Probe was bigger than I imagined.
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8 of 9 Found Helpful
Reviewed by: (Verified Buyer) Z6enthusiast from US.
on 2/23/2018
5
IAQ Meter
Does its job, like expected. For the price you do get some value.
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8 of 9 Found Helpful
Reviewed by: (Verified Buyer) Tyler from US.
on 2/15/2018
5
Outstanding instrument
An outstanding instrument for investigating and monitoring indoor air quality
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7 of 8 Found Helpful
Reviewed by: (Verified Buyer) Enrique Perez from Upper Darby PA.
on 9/25/2022
5
No brainer
All your IAQ measurements in one place with high accuracy, made in the US and comes with the NIST certification. Plus it’s from TSI. Not much more to say about it. No complaints and I recommend it highly
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7 of 8 Found Helpful
Reviewed by: (Verified Buyer) Tim Klein from Garland.
on 8/14/2022
5
super IAQ meter
Testing IAQ relates to how well ventillation system works, so you have to have accurate meter. Model 7525 is exactly that accurate tool. NDIR CO2 sensor produces stable test data, and this is what you want from reliable meter. Two thumbs up.
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7 of 8 Found Helpful
Reviewed by: (Verified Buyer) Andy Lewis from Virginia Beach.
on 1/19/2019
5
US
Really like that I can buy American. High quality construction and super accurate.
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7 of 8 Found Helpful
Reviewed by: (Verified Buyer) Jeff from .
on 4/1/2018
5
Great instrument
Datalogging and temp readings make it easy to analyze air conditions indoors. Good for offices and other buildings that need maintenance. Could be a touch less expensive I suppose.
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7 of 8 Found Helpful
Reviewed by: (Verified Buyer) Steven from .
on 1/15/2018
5
Nist Calibration
Nice to have a NIST calibration standard. I can prove that what my meter is showing is an accurate reflection of the current environment.
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5 of 7 Found Helpful
Reviewed by: (Verified Buyer) Devon from Canada.
on 3/5/2018
5
3 tools in one
When you combine CO2, temp and RH measurements, this is what you get. This is an advanced meter, as it also datalogs and shows statistics, so you don't have to take notes on a scratch paper. I cannot imagine my work without it now.
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3 of 5 Found Helpful
Reviewed by: (Verified Buyer) Rob Richards from Portland.
on 12/17/2018
5
ambient air comfort
Yes, this is a great tool to use for most of IAQ evaluations. CO2 readings are very accurate, as it uses ndir sensor. Display show readings of CO, temp and humidity, so you can see them all on one screen. Data storage and transfer make it a complete instrument for evaluations and reporting. It's in my toolbag all the time now.
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2 of 3 Found Helpful
Reviewed by: (Verified Buyer) Mo Johansen from Austin.
on 11/8/2018
5
great meter
Made in the US and comes standard with a NIST certificate. Air quality is becoming a greater concern for many of our customers and i wanted a meter i could trust and get years of service out of. My other TSI instruments are still going strong as well.
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2 of 3 Found Helpful
Reviewed by: (Verified Buyer) Rodolfo Cummings from Canada.
on 1/5/2018
5
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