diff --git a/custom_components/xiaomi_home/miot/specs/spec_modify.yaml b/custom_components/xiaomi_home/miot/specs/spec_modify.yaml
index fd35c03..fa2e6f8 100644
--- a/custom_components/xiaomi_home/miot/specs/spec_modify.yaml
+++ b/custom_components/xiaomi_home/miot/specs/spec_modify.yaml
@@ -121,3 +121,11 @@ urn:miot-spec-v2:device:outlet:0000A002:chuangmi-212a01:3:
     expr: round(src_value*6/1000000, 3)
 urn:miot-spec-v2:device:outlet:0000A002:chuangmi-212a01:1: urn:miot-spec-v2:device:outlet:0000A002:chuangmi-212a01:3
 urn:miot-spec-v2:device:outlet:0000A002:chuangmi-212a01:2: urn:miot-spec-v2:device:outlet:0000A002:chuangmi-212a01:3
+urn:miot-spec-v2:device:plant-monitor:0000A030:hhcc-v1:1:
+    prop.2.1:
+      name: moisture
+      icon: mdi:watering-can
+    prop.2.2:
+      name: soil_ec
+      icon: mdi:sprout-outline
+      unit: μS/cm