IAQ320-FILTER by Extech is a environmental test equipment designed for reliable performance in electronic applications. It is widely used in industrial, automotive, and power management systems.

Test and measurement products include instruments, probes, and related devices used for making measurements of electrical and environmental quantities for development, diagnostic, quality control, or monitoring purposes. Examples include oscilloscopes, multimeters, test bench power supplies, thermocouple probes, alligator and banana test leads, and function generators, along with barometers, data loggers, sound level meters, thermal imagers, and others.