From f4b5f32cb43db5a5b6ba0fe3cb541a2bf8ac8cef Mon Sep 17 00:00:00 2001
From: DJTerentjev <DJTerentjev@yandex.ru>
Date: Fri, 2 May 2025 04:43:58 +0300
Subject: [PATCH] Update const.py (#8665)

---
 esphome/const.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/esphome/const.py b/esphome/const.py
index f78312a5b0..262f5e0033 100644
--- a/esphome/const.py
+++ b/esphome/const.py
@@ -1102,6 +1102,7 @@ UNIT_MILLIGRAMS_PER_CUBIC_METER = "mg/m³"
 UNIT_MILLIMETER = "mm"
 UNIT_MILLISECOND = "ms"
 UNIT_MILLISIEMENS_PER_CENTIMETER = "mS/cm"
+UNIT_MILLIVOLT = "mV"
 UNIT_MINUTE = "min"
 UNIT_OHM = "Ω"
 UNIT_PARTS_PER_BILLION = "ppb"