diff --git a/scenes/pribor-uyep/sch3.tscn b/scenes/pribor-uyep/sch3.tscn
index 72dd4c05..da34fc03 100644
--- a/scenes/pribor-uyep/sch3.tscn
+++ b/scenes/pribor-uyep/sch3.tscn
@@ -1,4 +1,4 @@
-[gd_scene load_steps=10 format=3 uid="uid://dlkvu6bp6w5u7"]
+[gd_scene load_steps=11 format=3 uid="uid://dlkvu6bp6w5u7"]
 
 [ext_resource type="Script" path="res://scenes/pribor-uyep/sch3-view.gd" id="1_ln7ac"]
 [ext_resource type="Texture2D" uid="uid://c6nve6f8sfyj2" path="res://data/состояние-исправности-0.png" id="2_ln52a"]
@@ -6,6 +6,7 @@
 [ext_resource type="Texture2D" uid="uid://c6booa8753u5t" path="res://data/состояние-исправности-2.png" id="4_nijdy"]
 [ext_resource type="Texture2D" uid="uid://c4mdrmk7h638f" path="res://data/nine-patch-round.png" id="5_skqdl"]
 [ext_resource type="Shader" path="res://shaders/color-invers.gdshader" id="6_ypnlb"]
+[ext_resource type="Script" path="res://scripts/switch.gd" id="7_l6esm"]
 
 [sub_resource type="GDScript" id="GDScript_45hqb"]
 script/source = "@tool
diff --git a/scripts/switch.gd b/scripts/switch.gd
new file mode 100644
index 00000000..10710372
--- /dev/null
+++ b/scripts/switch.gd
@@ -0,0 +1,17 @@
+extends CheckButton
+
+
+@export var off_tip: String = '(отключено)'
+@export var on_tip:  String = '(включено)'
+
+
+func _ready() -> void:
+    if not (tooltip_text.contains(off_tip) or tooltip_text.contains(on_tip)):
+        tooltip_text += ' '
+        tooltip_text += on_tip if button_pressed else off_tip
+    connect('toggled', _on_toggled)
+
+
+func _on_toggled(state: bool):
+    var s = tooltip_text
+    tooltip_text = s.replace(off_tip, on_tip) if state else s.replace(on_tip, off_tip)