diff --git a/DeviceCommand/Devices/SDE710FH-A.cs b/DeviceCommand/Devices/SDE710FH-A.cs
index 7f21f8d..dc60f86 100644
--- a/DeviceCommand/Devices/SDE710FH-A.cs
+++ b/DeviceCommand/Devices/SDE710FH-A.cs
@@ -1,13 +1,102 @@
 using DeviceCommand.Base;
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
+using System.Threading;
 using System.Threading.Tasks;
 
 namespace DeviceCommand.Devices
 {
-    public class SDE710FH_A:ModbusTcp
+    public class SDE710FH_A : ModbusTcp
     {
+        // 从站地址（设备 ID）
+        private readonly byte _slaveId;
+
+        // 寄存器地址常量（根据设备手册定义）
+        private const ushort ADDR_TEMP_PV = 0x0000;   // 温度测量值
+        private const ushort ADDR_HUMID_PV = 0x0001;   // 湿度测量值
+        private const ushort ADDR_TEMP_MV = 0x0002;   // 温度输出值
+        private const ushort ADDR_HUMID_MV = 0x0003;   // 湿度输出值
+
+        // 转换系数：寄存器原始值 × SCALE = 工程值
+        private const float SCALE = 0.1f;
+
+        /// <summary>
+        /// 构造函数
+        /// </summary>
+        /// <param name="slaveId">Modbus 从站地址（1~247）</param>
+        /// <param name="ip">设备 IP 地址</param>
+        /// <param name="port">端口，默认 502</param>
+        /// <param name="sendTimeoutMs">发送超时（毫秒）</param>
+        /// <param name="receiveTimeoutMs">接收超时（毫秒）</param>
+        public SDE710FH_A(byte slaveId, string ip, int port = 502,
+                          int sendTimeoutMs = 3000, int receiveTimeoutMs = 3000)
+            : base()
+        {
+            _slaveId = slaveId;
+            ConfigureDevice(ip, port, sendTimeoutMs, receiveTimeoutMs);
+        }
+
+        // ==================== 读取单个值 ====================
+
+        /// <summary>读取温度 PV（工程值）</summary>
+        public async Task<float> ReadTemperaturePVAsync(CancellationToken ct = default)
+        {
+            ushort[] raw = await ReadInputRegistersAsync(_slaveId, ADDR_TEMP_PV, 1, ct);
+            return raw[0] * SCALE;
+        }
+
+        /// <summary>读取湿度 PV（工程值）</summary>
+        public async Task<float> ReadHumidityPVAsync(CancellationToken ct = default)
+        {
+            ushort[] raw = await ReadInputRegistersAsync(_slaveId, ADDR_HUMID_PV, 1, ct);
+            return raw[0] * SCALE;
+        }
+
+        /// <summary>读取温度 MV（工程值）</summary>
+        public async Task<float> ReadTemperatureMVAsync(CancellationToken ct = default)
+        {
+            ushort[] raw = await ReadHoldingRegistersAsync(_slaveId, ADDR_TEMP_MV, 1, ct);
+            return raw[0] * SCALE;
+        }
+
+        /// <summary>读取湿度 MV（工程值）</summary>
+        public async Task<float> ReadHumidityMVAsync(CancellationToken ct = default)
+        {
+            ushort[] raw = await ReadHoldingRegistersAsync(_slaveId, ADDR_HUMID_MV, 1, ct);
+            return raw[0] * SCALE;
+        }
+
+        // ==================== 批量读取 ====================
+
+        /// <summary>
+        /// 一次性读取温度 PV、湿度 PV、温度 MV、湿度 MV（效率更高）
+        /// </summary>
+        /// <returns>(tempPV, humidPV, tempMV, humidMV)</returns>
+        public async Task<(float tempPV, float humidPV, float tempMV, float humidMV)> ReadAllAsync(CancellationToken ct = default)
+        {
+            // 从 0x0000 开始连续读取 4 个保持寄存器
+            ushort[] raw = await ReadHoldingRegistersAsync(_slaveId, ADDR_TEMP_PV, 4, ct);
+            return (
+                raw[0] * SCALE,   // 温度 PV
+                raw[1] * SCALE,   // 湿度 PV
+                raw[2] * SCALE,   // 温度 MV
+                raw[3] * SCALE    // 湿度 MV
+            );
+        }
+
+        // ==================== 写入 ====================
+
+        /// <summary>设定温度 MV（工程值）</summary>
+        public async Task WriteTemperatureMVAsync(float value, CancellationToken ct = default)
+        {
+            ushort raw = (ushort)(value / SCALE);
+            await WriteSingleRegisterAsync(_slaveId, ADDR_TEMP_MV, raw, ct);
+        }
+
+        /// <summary>设定湿度 MV（工程值）</summary>
+        public async Task WriteHumidityMVAsync(float value, CancellationToken ct = default)
+        {
+            ushort raw = (ushort)(value / SCALE);
+            await WriteSingleRegisterAsync(_slaveId, ADDR_HUMID_MV, raw, ct);
+        }
     }
-}
+}
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