Let’s Dive into Extech Instruments Anemometer, CFM/CMM
The Extech Instruments Anemometer, CFM/CMM, model AN200, is a thermo-anemometer designed for professionals and serious hobbyists who need accurate air flow and temperature measurements. This Extech Instruments product combines a traditional vane anemometer with a non-contact infrared (IR) thermometer, making it a versatile tool for a range of applications. It’s a single piece of equipment able to measure air velocity, air flow (CFM/CMM), ambient temperature, and surface temperature.
My interest in the Extech Instruments Anemometer, CFM/CMM stemmed from a need to accurately assess ventilation performance in off-grid cabin builds. Ensuring proper airflow is crucial not just for comfort, but for safety, preventing the build-up of harmful gases from combustion appliances. I needed a reliable instrument to measure both air flow and surface temperatures of heating equipment, and the AN200 seemed to fit the bill.
Upon unboxing the Extech Instruments Anemometer, CFM/CMM, I was immediately struck by its solid feel. The unit has a good weight to it, suggesting durable construction, and the plastic housing seems robust enough to withstand the rigors of field use. The large LCD screen is clear and easy to read, even in bright sunlight.
I considered other anemometers, including some less expensive options from brands like HoldPeak and Dr. Meter. However, the Extech Instruments model stood out due to its integrated IR thermometer and the reputation of Extech Instruments for reliable, professional-grade equipment. The combination of features and the perceived build quality made the Extech Instruments Anemometer, CFM/CMM a more attractive investment.
My first impression was positive. The Extech Instruments Anemometer, CFM/CMM felt like a serious piece of equipment, well-suited to the tasks I had in mind. The integrated IR thermometer was a pleasant surprise, offering a capability I hadn’t fully appreciated until I held the device in my hand.
Real-World Testing: Putting Extech Instruments Anemometer, CFM/CMM to the Test
First Use Experience
The initial testing of the Extech Instruments Anemometer, CFM/CMM took place during the commissioning of a wood-burning stove in a newly constructed off-grid cabin. I used the anemometer to measure airflow through the stove’s ventilation system and the IR thermometer to monitor surface temperatures on the stove body and flue pipe. The goal was to ensure safe and efficient operation.
The Extech Instruments Anemometer, CFM/CMM performed admirably under relatively dry and moderate conditions. Readings were stable and consistent, and the IR thermometer proved particularly useful for identifying potential hot spots on the stove. The unit was easy to use right out of the box, with a straightforward interface and intuitive button layout.
One initial issue was the sensitivity of the vane anemometer to minor obstructions. Even small twigs or leaves caught in the vane significantly impacted readings. However, this is a characteristic of most vane anemometers and easily addressed with careful placement.
Extended Use & Reliability
After several weeks of intermittent use, the Extech Instruments Anemometer, CFM/CMM has proven to be a reliable and valuable tool. It has been used in a variety of environments, from dusty construction sites to damp coastal areas. The only visible wear and tear is some minor scratching on the plastic housing.
Cleaning the Extech Instruments Anemometer, CFM/CMM is simple. Wiping down the housing with a damp cloth is usually sufficient. The vane is easily accessible for removing debris. The robust construction and ease of maintenance instill confidence in its long-term durability.
Compared to previous experiences with less expensive anemometers, the Extech Instruments Anemometer, CFM/CMM stands out for its accuracy and stability. It provides consistently repeatable readings and its integrated IR thermometer is a significant advantage. It definitely outperforms cheaper alternatives.
Breaking Down the Features of Extech Instruments Anemometer, CFM/CMM
Specifications
The Extech Instruments Anemometer, CFM/CMM measures air velocity in the range of 0.4 to 25.0 m/s. This is crucial for accurately assessing airflow in various ventilation systems.
Air flow (CFM/CMM) measurements are also available, providing volumetric flow rates. These are essential for balancing HVAC systems and ensuring adequate ventilation.
The built-in IR thermometer has a temperature range of -50 to 260°C (-58 to 500°F). This allows for non-contact temperature measurements of surfaces, such as heating elements or electrical components.
The distance-to-spot ratio of the IR thermometer is 8:1. This specification defines the area being measured at a given distance, influencing measurement accuracy.
**The *Extech Instruments Anemometer, CFM/CMM* has a resolution of 0.01 m/sec.** This high resolution allows precise measurement of air velocity.
It can store up to eight area dimensions (ft2 or cm2) in its internal memory. This allows for quick and easy calculation of airflow in different-sized ducts.
The ball-bearing vane wheel has a diameter of 7.2cm (227/32“). Its 3% velocity accuracy ensures reliable and precise readings.
Performance & Functionality
The Extech Instruments Anemometer, CFM/CMM excels at its intended purpose: accurately measuring air velocity, airflow, and surface temperature. The anemometer provides stable and consistent readings, and the IR thermometer is quick and responsive. It has exceeded my expectations for accuracy and ease of use.
One minor weakness is the lack of data logging capability. The ability to record measurements over time would be a valuable addition. However, for spot measurements, the Extech Instruments Anemometer, CFM/CMM performs admirably.
The Extech Instruments Anemometer, CFM/CMM definitely meets my expectations. Its multi-functionality increases its value proposition.
Design & Ergonomics
The Extech Instruments Anemometer, CFM/CMM has a robust and ergonomic design. Its plastic housing feels durable and provides a comfortable grip, even with wet or gloved hands. The weight feels substantial, but not overly heavy.
The user interface is intuitive and easy to navigate, even for those unfamiliar with anemometers. The large backlit LCD screen is clear and easy to read in various lighting conditions. There is virtually no learning curve involved in using this device.
Durability & Maintenance
The materials used in the Extech Instruments Anemometer, CFM/CMM suggest a long lifespan. The robust plastic housing, combined with the well-protected vane wheel, should withstand years of use. Regular cleaning of the vane and occasional battery replacement should be the only required maintenance.
Cleaning the Extech Instruments Anemometer, CFM/CMM is very easy to achieve with a cloth. Minimal maintenance should be expected.
Accessories and Customization Options
The Extech Instruments Anemometer, CFM/CMM comes with a protective carrying case. This helps protect the instrument during transport and storage. It also comes with batteries.
There are limited customization options for the Extech Instruments Anemometer, CFM/CMM. It’s not compatible with external probes or data logging devices. However, its versatility and comprehensive feature set mean that customization is not essential.
Pros and Cons of Extech Instruments Anemometer, CFM/CMM
Pros
- Accurate and reliable measurements. Provides consistent readings in various conditions.
- Integrated IR thermometer. Offers non-contact temperature measurement capability.
- Easy to use interface. Intuitive button layout and clear LCD screen.
- Durable construction. The robust plastic housing should withstand years of use.
- Stores multiple area dimensions. Simplifies airflow calculations in different-sized ducts.
Cons
- Lacks data logging capability. Limits its usefulness for long-term monitoring.
- Sensitive vane anemometer. Requires careful placement to avoid obstructions.
Who Should Buy Extech Instruments Anemometer, CFM/CMM?
The Extech Instruments Anemometer, CFM/CMM is perfect for HVAC technicians, building inspectors, and anyone who needs to measure airflow and temperature accurately. It’s also a great tool for serious hobbyists, such as off-grid builders and renewable energy enthusiasts. Professionals who need a reliable and versatile instrument for ventilation assessments will especially benefit from the product.
Those who primarily need long-term data logging or operate in extremely turbulent conditions may want to consider other options. The Extech Instruments Anemometer, CFM/CMM excels at providing precise spot measurements, but it’s not designed for continuous monitoring.
A must-have accessory is a set of high-quality rechargeable batteries. This can help reduce waste and save money on replacement batteries.
Conclusion on Extech Instruments Anemometer, CFM/CMM
The Extech Instruments Anemometer, CFM/CMM is a well-designed and versatile instrument that delivers accurate and reliable measurements. Its integrated IR thermometer and durable construction make it a valuable tool for a range of applications. Its price, at $207.89, is definitely justified considering its combined functionality.
I would absolutely recommend the Extech Instruments Anemometer, CFM/CMM to anyone who needs a dependable anemometer with added temperature measurement capabilities. It’s a worthwhile investment for professionals and serious hobbyists alike. If you value accuracy, durability, and ease of use, the Extech Instruments Anemometer, CFM/CMM is an excellent choice. Upgrade your assessment capabilities now!