diff --git a/internal/device/logic.go b/internal/device/logic.go
index 30076ea..5b33b2b 100644
--- a/internal/device/logic.go
+++ b/internal/device/logic.go
@@ -164,13 +164,13 @@ func isReadableParamID(id int) bool {
 // validateParamRange checks if value is within acceptable range for parameter
 func validateParamRange(id, value int) bool {
 	ranges := map[int][2]int{
-		1:  {0, 2000},   // W1 - Min Threshold
-		2:  {0, 4095},   // W2 - Max Threshold
-		3:  {1, 50},     // W3 - Pulse Count
-		4:  {10, 1000},  // W4 - Time Window
-		11: {0, 1000},   // W11 - Min Pulse Duration
-		12: {0, 1000},   // W12 - Max Pulse Duration
-		20: {0, 255},    // W20 - Gain (Wiper)
+		1:  {0, 255},     // W1 - Min Threshold
+		2:  {0, 4095},    // W2 - Max Threshold
+		3:  {1, 50},      // W3 - Pulse Count
+		4:  {1000, 60000},// W4 - Time Window
+		11: {5, 300},     // W11 - Min Pulse Duration
+		12: {5, 300},     // W12 - Max Pulse Duration
+		20: {0, 255},     // W20 - Gain (Wiper)
 	}
 
 	r, ok := ranges[id]
diff --git a/internal/device/state.go b/internal/device/state.go
index 4410afb..8c245dd 100644
--- a/internal/device/state.go
+++ b/internal/device/state.go
@@ -35,13 +35,13 @@ func NewDeviceState() *DeviceState {
 		alarmActive: false,
 		alarmType:   "",
 		params: map[int]int{
-			1:  1000, // W1 - Min Threshold (middle of 0-2000)
-			2:  2047, // W2 - Max Threshold (middle of 0-4095)
-			3:  25,   // W3 - Pulse Count (middle of 1-50)
-			4:  505,  // W4 - Time Window (middle of 10-1000)
-			11: 0,    // W11 - Min Pulse Duration (min)
-			12: 1000, // W12 - Max Pulse Duration (max)
-			20: 127,  // W20 - Gain (middle of 0-255)
+			1:  127,   // W1 - Min Threshold (middle of 0-255)
+			2:  2047,  // W2 - Max Threshold (middle of 0-4095)
+			3:  25,    // W3 - Pulse Count (middle of 1-50)
+			4:  30500, // W4 - Time Window (middle of 1000-60000)
+			11: 152,   // W11 - Min Pulse Duration (middle of 5-300)
+			12: 152,   // W12 - Max Pulse Duration (middle of 5-300)
+			20: 127,   // W20 - Gain (middle of 0-255)
 		},
 		ncParam:          true, // Default NO mode (1)
 		sensorValue:      2067,
@@ -124,12 +124,12 @@ func (s *DeviceState) ResetToDefaults() {
 	s.alarmActive = false
 	s.alarmType = ""
 	s.params = map[int]int{
-		1:  1000,
+		1:  127,
 		2:  2047,
 		3:  25,
-		4:  505,
-		11: 0,
-		12: 1000,
+		4:  30500,
+		11: 152,
+		12: 152,
 		20: 127,
 	}
 	s.ncParam = true // Default NO mode (1)
diff --git a/internal/tui/view.go b/internal/tui/view.go
index a6126dd..d20df7e 100644
--- a/internal/tui/view.go
+++ b/internal/tui/view.go
@@ -155,12 +155,12 @@ func (m Model) renderControlsPanel(width int) string {
 		20: "W20 (Gain)",
 	}
 	paramRanges := map[int][2]int{
-		1:  {0, 2000},
+		1:  {0, 255},
 		2:  {0, 4095},
 		3:  {1, 50},
-		4:  {10, 1000},
-		11: {0, 1000},
-		12: {0, 1000},
+		4:  {1000, 60000},
+		11: {5, 300},
+		12: {5, 300},
 		20: {0, 255},
 	}