DFRobot 高精度工業級 RS485 溫濕度感測器 ｜ MODBUS RTU 協定，穩定可靠

商品說明

這是一款高精度工業級RS485溫濕度感測器，採用高品質數位一體化變送器和可靠的數位處理電路，將環境中的溫濕度轉換成相應的RS485訊號，並與上位機系統可靠地進行集中監控。

此模組測量範圍廣、檢測精度高、響應速度快，支援-40至120度的溫度檢測和0至99.9% RH的濕度檢測。感測器採用鋁合金外殼全包，防水防熱，適用於惡劣環境。此外，其探頭採用透氣防塵設計，有效保護內部電路板，並延長使用壽命。

該產品具有卓越的長期穩定性、低延遲、高抗化學污染能力以及卓越的重複性。它是 HVAC（暖氣、通風和空調）應用中精確測量相對濕度和溫度的理想解決方案。此感測器可廣泛應用於樓宇自動化、氣候和 HVAC 自動控制、博物館和飯店的氣候站以及 HVAC 系統的閉環控制等。

RS485溫濕度感測器 規格

• 溫度測量範圍：-40～120℃
• 濕度測量範圍：0～99.9％RH
• 溫度精度：±0.3°C（25°C）
• 濕度精度：±2%RH（25℃）
• 採樣週期：3秒
• 電源電壓：12～36V（直流）
• 產品尺寸：200mm（長）×15.7mm（深）/7.87×0.62英寸
• 輸出訊號：RS485訊號
• 通訊協議：標準MODBUS RTU協議
• 波特率：9600（預設）
• 顯示解析度：溫度：0.1℃；濕度：1%RH
• 產品淨重：110.0g
• 靈敏度衰減值：溫度＜0.1℃/年；濕度＜0.5%RH/年
• 線序：黃線-RS485 A；紅線-電源輸入；黑線-GND；白線-RS485 B

技術補充（英文）

以下為原廠英文技術說明，提供進階使用者參考。

This is a high-precision industrial-grade RS485 temperature and humidity sensor. It uses high-quality digital integrated transducer and reliable digital processing circuit to convert the temperature and humidity in the environment into corresponding RS485 signals. And it can reliably carry out centralized monitoring jobs with the host computer system.
Featuring a wide measurement range, a high detection accuracy, and a fast response speed, the module supports temperature detection of -40 to 120 degrees and humidity detection of 0 to 99.9% RH. Fully wrapped by the aluminum alloy shell, the sensor is waterproof and heat resistant, which makes it suitable for harsh environments. Besides, its probe employs a breathable and dust-proof design that effectively protects the internal circuit board and prolongs the service validity period.
The product has remarkable long-term stability, low latency, high resistance to chemical pollution, and superior repeatability. It is an ideal solution for accurately measuring relative humidity and temperature in HVAC(Heating, ventilation, and air conditioning) applications. This sensor can be widely used in building automation, climate and HVAC automatic control, climatology stations in museums and hotels, closed-loop control of HVAC systems, etc.

Specification for RS485 Temperature & Humidity Sensor

• Temperature Measurement Range: -40 ~ 120℃
• Humidity Measurement Range: 0 ~ 99.9%RH
• Temperature Accuracy: ± 0.3°C (25°C)
• Humidity Accuracy: ± 2%RH (25℃)
• Sampling Cycle Period: 3 sec
• Power Supply Voltage: 12 ~ 36V (DC)
• Product Size: 200mm(L) × 15.7mm(D) / 7.87×0.62”
• Output Signal: RS485 signal
• Communication Protocol: standard MODBUS RTU protocol
• Baud Rate: 9600 (default)
• Display Resolution: Temperature: 0.1℃; Humidity: 1%RH
• Product Net Weight: 110.0g
• Sensitivity Attenuation Value: temperature＜0.1℃/year; humidity＜0.5%RH/year
• Wire Sequence: yellow wire – RS485 A; red wire – power input; black wire – GND; white wire – RS485 B