1. Easy-to-use machine; 2. Portable,small size 3. Two size channels. 4. LCD Display 5. Built-in and long-life pump CLJ-R200 Airborne Particles sensorFeatures: 1. Lightweight, small size, easy to install2. Sensitivity: 0.3 um3. Two channels: 0.3 um, 0.5 um (optional)4. Real-time Data LCD Display 5. TCP/IP(LAN) Protocol communication 6. Provide RS485, MODBUS protocol7. Built-in and long-life pump ...