AQH-20型室內空氣質量測量儀通過測量一個設備中的二氧化碳濃度、空氣溫度和濕度百分比，減少了必須攜帶的儀器數量。 一個大型背光液晶顯示屏同時顯示這三個參數。 AQH-20型可顯示露點或濕球溫度，代替環境溫度。 通過功能按鈕可以方便地訪問最小、和平均讀數。 通過按下hold鍵，保存當前值，以便記錄它們。 一個聲音警報警告用戶當前的環境條件正在變得危險。 AQH-20型包括一個手提箱和電池 
 

Ranges: CO2: 0 to 2000; Temperature: 14 to 140°F (-10 to 60°C); Relative Humidity: 0.0 to 99.9% RH.

Accuracy:CO2: ±30 ppm ±5% of reading; Temperature: ±0.9°F (±0.6°C); Humidity: ±3% RH (10 to 90%), ±5% (0.0 to 9.9% or 90 to 99.9%).

Resolution:CO2: 1 ppm; Temperature: 0.1°F (0.1°C); Humidity: 0.1% RH.

Response Time:CO2: < 30 s.; Temperature: < 2 m.; Humidity: < 10 m.

Display:4 digits for temperature/CO2 and 3 digits for humidity.

CO2 Sensor:Non-dispersive infrared.

Temperature Limits:32 to 122°F (0 to 50°C).

Humidity Limits (Non-Condensing):0 to 95% RH.

Power Requirements:(4) 1.5 V AA alkaline batteries, included, user replaceable.

Warm Up Time:

30 s.Weight:6.76 oz (200 g).

Agency Approvals:CE.

Model   Description

AQH-20 Handheld indoor air quality meter.