Condition: 100% Brand NewItem Type: PM2.5 SensorMaterial: ABSColor: As shown in the pictureSize: Approx.10.8x4cm / 4.3x1.6in(Length x Height)Weight: Approx.257g/9.1oz Parameter Technical Index Power supply 12-24V DC Average current <85mA PM2.5/10 measuring range 0-1000ug/m PM2.5/10 accuracy 10%FS Temperature measurement range -40C-80C Temperature accuracy 0.5C Humidity measurement range 0-100%RH Humidity accuracy 3%RH Stability <2%FS Nonlinear <1%FS Response time 120S Preheat time 2min (available) 10min (maximum accuracy) Warranty 2 years (machine) / 1 year (probe) Output signal RS485 Power consumption 1.2W (@12V DC, 25C) Working pressure range 0.9-1.1atm Interface Description:Wide voltage power input can be 12-24V. When wiring the 485 signal line, note that the A/B lines cannot be connected in reverse, and the addresses between multiple devices on the bus cannot conflict. Line color Description Power supply Brown Power supply positive12-24V DC Power supply Black Power supply negative Communication Yellow (gray) 485-A Communication Blue 485-B