1. Humidity: range: 0-100% RH; resolution: 0.1%; error: ≤± 1.8% RH; response time: 15s.
2. Leaf temperature: range: 0-50 ℃; resolution: ≤ 0.1 ℃; error: ≤ ± 0.2 ℃.
3.Air temperature: range: 0-50 ℃; resolution: 0.1 ℃; error: ± 0.3 ℃.
4. Flowmeter: range: 0.3-1.0L/min; resolution: 0.01L/min; error: ± 2.0%