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DHT21 AM2301 Temperature & Humidity Sensor

DHT21 AM2301 Temperature & Humidity Sensor - Main image
$1.62 $2.49 In stock

Category: 感測器

DHT21 數位溫度感測器是 DHT 溫度感測器系列中最常見的型號之一,具備相對較高的溫度測量準確度,可達 0.5oC,並以 0.1oC 為單位,相對濕度準確度為 +/- 3%。它只有 3 條線,包含電源與接地,這表示只需一個數位腳位即可將其連接至微控制器...

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Standard Shipping · 美國: US$0.00

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Customer Reviews (4.8 / 5 · 5 reviews)

Amelia ★★★★★

I needed a sensor with better accuracy than my old one, and the 0.5°C precision on this DHT21 is spot-on for my greenhouse setup. It's responding quickly to temperature changes and the data is much cleaner in my logs.

Sophia O. ★★★★★

The 0.1°C resolution makes it easy to track small temperature shifts in my workshop, and it's been rock-solid stable for weeks now. Calibration was straightforward with the library I use, no fuss at all.

Ella O. ★★★★★

I needed a reliable sensor for my greenhouse and the 0.5°C accuracy has been spot-on so far. It reads every few seconds without any lag, which is perfect for my setup.