diff --git a/Controller/SensorReadingsController.cs b/Controller/SensorReadingsController.cs
new file mode 100644
index 0000000..c3079f1
--- /dev/null
+++ b/Controller/SensorReadingsController.cs
@@ -0,0 +1,29 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.OData.Query;
+using Microsoft.AspNetCore.OData.Results;
+using Microsoft.AspNetCore.OData.Routing.Controllers;
+
+public class SensorReadingsController : ODataController
+{
+    private readonly AppDbContext _db;
+    public SensorReadingsController(AppDbContext db) => _db = db;
+
+    // GET /odata/SensorReadings
+    [EnableQuery]
+    public IQueryable<SensorReading> Get()
+        => _db.SensorReadings;
+
+    // GET /odata/SensorReadings(ts=...,location='...')
+    [EnableQuery]
+    public SingleResult<SensorReading> Get([FromRoute] DateTimeOffset ts, [FromRoute] string location)
+        => SingleResult.Create(_db.SensorReadings.Where(x => x.Ts == ts && x.Location == location));
+
+    // POST /odata/SensorReadings
+    public async Task<IActionResult> Post([FromBody] SensorReading sensorReading)
+    {
+        _db.SensorReadings.Add(sensorReading);
+        await _db.SaveChangesAsync();
+
+        return Created(sensorReading);
+    }
+}
diff --git a/Data/DbContext.cs b/Data/DbContext.cs
index 8e0846d..ea77f5e 100644
--- a/Data/DbContext.cs
+++ b/Data/DbContext.cs
@@ -7,4 +7,11 @@
 
     public DbSet<HololiveSchedule> HololiveSchedule => Set<HololiveSchedule>();
     public DbSet<PixivImage> PixivImages => Set<PixivImage>();
+    public DbSet<SensorReading> SensorReadings => Set<SensorReading>();
+
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        modelBuilder.Entity<SensorReading>()
+            .HasKey(x => new { x.Ts, x.Location });
+    }
 }
diff --git a/Data/SensorReading.cs b/Data/SensorReading.cs
new file mode 100644
index 0000000..ffa2da6
--- /dev/null
+++ b/Data/SensorReading.cs
@@ -0,0 +1,88 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+[Table("SensorReadings", Schema = "dbo")]
+public class SensorReading
+{
+    [Column("ts")]
+    public DateTimeOffset Ts { get; set; }
+
+    [Column("location")]
+    [MaxLength(64)]
+    public string Location { get; set; } = null!;
+
+    [Column("temperature_c")]
+    public double? TemperatureC { get; set; }
+
+    [Column("humidity_rh")]
+    public double? HumidityRh { get; set; }
+
+    [Column("ambient_light")]
+    public double? AmbientLight { get; set; }
+
+    [Column("pressure_hpa")]
+    public double? PressureHpa { get; set; }
+
+    [Column("noise_db")]
+    public double? NoiseDb { get; set; }
+
+    [Column("etvoc_ppb")]
+    public double? EtvocPpb { get; set; }
+
+    [Column("eco2_ppm")]
+    public double? Eco2Ppm { get; set; }
+
+    [Column("discomfort_index")]
+    public double? DiscomfortIndex { get; set; }
+
+    [Column("heatstroke_index")]
+    public double? HeatstrokeIndex { get; set; }
+
+    [Column("vibration_info")]
+    public byte? VibrationInfo { get; set; }
+
+    [Column("si_value")]
+    public double? SiValue { get; set; }
+
+    [Column("pga_gal")]
+    public double? PgaGal { get; set; }
+
+    [Column("seismic_intensity")]
+    public double? SeismicIntensity { get; set; }
+
+    [Column("temperature_flag")]
+    public byte? TemperatureFlag { get; set; }
+
+    [Column("humidity_flag")]
+    public byte? HumidityFlag { get; set; }
+
+    [Column("ambient_light_flag")]
+    public byte? AmbientLightFlag { get; set; }
+
+    [Column("pressure_flag")]
+    public byte? PressureFlag { get; set; }
+
+    [Column("noise_flag")]
+    public byte? NoiseFlag { get; set; }
+
+    [Column("etvoc_flag")]
+    public byte? EtvocFlag { get; set; }
+
+    [Column("eco2_flag")]
+    public byte? Eco2Flag { get; set; }
+
+    [Column("discomfort_flag")]
+    public byte? DiscomfortFlag { get; set; }
+
+    [Column("heatstroke_flag")]
+    public byte? HeatstrokeFlag { get; set; }
+
+    [Column("si_flag")]
+    public byte? SiFlag { get; set; }
+
+    [Column("pga_flag")]
+    public byte? PgaFlag { get; set; }
+
+    [Column("seismic_intensity_flag")]
+    public byte? SeismicIntensityFlag { get; set; }
+}
diff --git a/Program.cs b/Program.cs
index a0ad811..59881a7 100644
--- a/Program.cs
+++ b/Program.cs
@@ -11,6 +11,9 @@
 var odataBuilder = new ODataConventionModelBuilder();
 odataBuilder.EntitySet<HololiveSchedule>("HololiveSchedule");
 odataBuilder.EntitySet<PixivImage>("PixivImages");
+odataBuilder.EntitySet<SensorReading>("SensorReadings")
+    .EntityType
+    .HasKey(x => new { x.Ts, x.Location });
 
 builder.Services.AddControllers()
     .AddOData(opt =>