diff --git a/zha/application/platforms/number/__init__.py b/zha/application/platforms/number/__init__.py
index 21817a7b9..c53614e29 100644
--- a/zha/application/platforms/number/__init__.py
+++ b/zha/application/platforms/number/__init__.py
@@ -862,8 +862,8 @@ class ThermostatLocalTempCalibration(NumberConfigurationEntity):
 class SonoffThermostatLocalTempCalibration(ThermostatLocalTempCalibration):
     """Local temperature calibration for the Sonoff TRVZB."""
 
-    _attr_native_min_value: float = -7
-    _attr_native_max_value: float = 7
+    _attr_native_min_value: float = -12.8
+    _attr_native_max_value: float = 12.7
     _attr_native_step: float = 0.2