diff --git a/Cargo.lock b/Cargo.lock
index 045fd56..0fdfc4b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -212,7 +212,7 @@ dependencies = [
  "maybe-async-cfg",
  "paste",
  "thiserror",
- "uom",
+ "uom 0.38.0",
 ]
 
 [[package]]
@@ -259,7 +259,7 @@ dependencies = [
  "maybe-async-cfg",
  "thiserror",
  "trybuild",
- "uom",
+ "uom 0.37.0",
 ]
 
 [[package]]
@@ -761,6 +761,16 @@ dependencies = [
  "typenum",
 ]
 
+[[package]]
+name = "uom"
+version = "0.38.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a739f83872836c82a4f2527d4e54b37007b3de68cafe7edde95fd695968bf4b9"
+dependencies = [
+ "num-traits",
+ "typenum",
+]
+
 [[package]]
 name = "winapi-util"
 version = "0.1.9"
diff --git a/embedded-devices/Cargo.toml b/embedded-devices/Cargo.toml
index 5ddba7b..bb695d8 100644
--- a/embedded-devices/Cargo.toml
+++ b/embedded-devices/Cargo.toml
@@ -22,7 +22,7 @@ embedded-interfaces = { version = "0.10.3", path = "../embedded-interfaces", def
 embedded-devices-derive = { version = "0.10.3", path = "../embedded-devices-derive" }
 maybe-async-cfg = "0.2"
 paste = "1.0"
-uom = { version = "0.37.0", features = ["f64", "si"], default-features = false }
+uom = { version = "0.38.0", features = ["f64", "si"], default-features = false }
 # uom = { git = "https://github.com/iliekturtles/uom", rev = "b64af636bdff2119e5f1e0e5ad5206a326403e79", features = ["f64", "si"], default-features = false }
 crc = "3.3"
 thiserror = { version = "2.0.12", default-features = false }
diff --git a/embedded-devices/src/devices/vishay/veml7700/mod.rs b/embedded-devices/src/devices/vishay/veml7700/mod.rs
index d9a6d80..9de283c 100644
--- a/embedded-devices/src/devices/vishay/veml7700/mod.rs
+++ b/embedded-devices/src/devices/vishay/veml7700/mod.rs
@@ -74,7 +74,8 @@ pub mod registers;
 
 use registers::{Configuration, PowerSaving};
 
-//use uom::si::illuminance::lux; // requires uom 0.38.0
+use uom::si::f64::Illuminance;
+use uom::si::illuminance::lux;
 
 #[cfg_attr(feature = "defmt", derive(defmt::Format))]
 #[derive(Debug, thiserror::Error)]
@@ -100,7 +101,7 @@ pub enum MeasurementError<BusError> {
 /// Measurement data
 #[derive(Debug, embedded_devices_derive::Measurement)]
 pub struct Measurement {
-    pub lux: f32, //uom::si::Illuminance,
+    pub lux: Illuminance,
 }
 
 /// The VEML7700 is a high accuracy digital ambient light sensor.
@@ -183,7 +184,7 @@ impl<D: hal::delay::DelayNs, I: embedded_interfaces::registers::RegisterInterfac
         &mut self,
         config: &mut Configuration,
         ps_sleep: u32,
-    ) -> Result<f32, MeasurementError<I::BusError>> {
+    ) -> Result<f64, MeasurementError<I::BusError>> {
         const UP_THRESHOLD: u16 = 100;
         const DOWN_THRESHOLD: u16 = 10_000;
 
@@ -233,7 +234,7 @@ impl<D: hal::delay::DelayNs, I: embedded_interfaces::registers::RegisterInterfac
             self.configure(config).await?;
         }
 
-        Ok(raw_lux as f32 * config.resolution())
+        Ok(raw_lux as f64 * config.resolution())
     }
 }
 
@@ -260,9 +261,10 @@ impl<D: hal::delay::DelayNs, I: embedded_interfaces::registers::RegisterInterfac
         self.write_register(config).await?;
 
         let raw_lux = self.measure_raw_lux_auto(&mut config, ps.ms()).await?;
+        let corrected_lux = lux_correction(raw_lux);
 
         Ok(Measurement {
-            lux: lux_correction(raw_lux),
+            lux: Illuminance::new::<lux>(corrected_lux),
         })
     }
 }
@@ -319,10 +321,11 @@ impl<D: hal::delay::DelayNs, I: embedded_interfaces::registers::RegisterInterfac
     async fn current_measurement(&mut self) -> Result<Option<Self::Measurement>, Self::Error> {
         let config = self.read_register::<Configuration>().await?;
         let raw_data = self.read_register::<registers::ALSData>().await?;
-        let raw_lux = raw_data.read_als_data() as f32 * config.resolution();
+        let raw_lux = raw_data.read_als_data() as f64 * config.resolution();
+        let corrected_lux = lux_correction(raw_lux);
 
         Ok(Some(Measurement {
-            lux: lux_correction(raw_lux),
+            lux: Illuminance::new::<lux>(corrected_lux),
         }))
     }
 
@@ -339,13 +342,15 @@ impl<D: hal::delay::DelayNs, I: embedded_interfaces::registers::RegisterInterfac
         let ps = self.read_register::<PowerSaving>().await?;
 
         let raw_lux = self.measure_raw_lux_auto(&mut config, ps.ms()).await?;
+        let corrected_lux = lux_correction(raw_lux);
+
         Ok(Measurement {
-            lux: lux_correction(raw_lux),
+            lux: Illuminance::new::<lux>(corrected_lux),
         })
     }
 }
 
-fn lux_correction(raw_lux: f32) -> f32 {
+fn lux_correction(raw_lux: f64) -> f64 {
     if raw_lux <= 1000.0 {
         return raw_lux;
     }
@@ -357,10 +362,10 @@ fn lux_correction(raw_lux: f32) -> f32 {
     }
 
     // coefficients from datasheet
-    const A: f32 = 6.0135e-13;
-    const B: f32 = -9.3924e-9;
-    const C: f32 = 8.1488e-5;
-    const D: f32 = 1.0023;
+    const A: f64 = 6.0135e-13;
+    const B: f64 = -9.3924e-9;
+    const C: f64 = 8.1488e-5;
+    const D: f64 = 1.0023;
 
     let res_d = D * raw_lux;
 
diff --git a/embedded-devices/src/devices/vishay/veml7700/registers.rs b/embedded-devices/src/devices/vishay/veml7700/registers.rs
index cd0d723..4b823c5 100644
--- a/embedded-devices/src/devices/vishay/veml7700/registers.rs
+++ b/embedded-devices/src/devices/vishay/veml7700/registers.rs
@@ -183,7 +183,7 @@ impl IntegrationTime {
         }
     }
 
-    pub(super) const fn k_hz(&self) -> f32 {
+    pub(super) const fn k_hz(&self) -> f64 {
         match self {
             IntegrationTime::T_25 => 0.04,
             IntegrationTime::T_50 => 0.02,
@@ -223,7 +223,7 @@ impl IntegrationTime {
 }
 
 impl Gain {
-    pub const fn factor(&self) -> f32 {
+    pub const fn factor(&self) -> f64 {
         match self {
             Gain::X_1 => 1.0,
             Gain::X_2 => 2.0,
@@ -232,7 +232,7 @@ impl Gain {
         }
     }
 
-    pub(super) const fn inv_factor(&self) -> f32 {
+    pub(super) const fn inv_factor(&self) -> f64 {
         match self {
             Gain::X_1_8 => 8.0,
             Gain::X_1_4 => 4.0,
@@ -267,8 +267,8 @@ impl Gain {
 impl Configuration {
     /// Calculate the lux/count resolution based on
     /// the current gain and integration time settings
-    pub fn resolution(&self) -> f32 {
-        const BASE_RES: f32 = 6.72;
+    pub fn resolution(&self) -> f64 {
+        const BASE_RES: f64 = 6.72;
 
         let gain = self.read_gain().inv_factor();
         let it = self.read_integration_time().k_hz();