The Beckman Coulter 3400+ Air Particle Counter (Model 3425+) is a portable, high-precision instrument designed for cleanroom and environmental monitoring applications. It features a stainless steel housing with an integrated touchscreen interface and onboard printer, providing ease of use and reliable particle counting performance. The device operates on 24V DC power with a maximum consumption of 120W and includes a rechargeable Li-ion battery for portable operation.