Temtop PMS 16 Particle Sensor PM1 PM2.5 PM10 TSP Laser Particle Sensor Module Dust Monitor 4 Channel (Pump Not Included)(4 Pack)

Features: 

• 【4 Channels Particle Size Monitoring】Simultaneously detects the mass concentration of particulate matter of PM1, PM2.5, PM10, and TSP with a sampling time of 10 sec.
• 【Precise Calibration】Manufacturer calibration benchmarking beta ray method effectively reduces the cost of secondary calibration.
• 【Optional External Air Pump】Supports external air pump, which is extremely cost-effective and flexible. Default 1.1L/min pump (customizable).
• 【Strong Anti-interference】Adopt all-metal precision optomechanical structure design for anti-interference.
• 【Simple Installation】Small size with an industry-standard interface for more convenient installation.