diff --git a/JSON-dictionary.md b/JSON-dictionary.md
index ffb2189..526c56c 100644
--- a/JSON-dictionary.md
+++ b/JSON-dictionary.md
@@ -55,7 +55,7 @@ Certain commands are used to alter the non volatile settings stored by the contr
 | TempMax | integer | typ 35 | From ESP | n/a | |
 | TempMin | integer | typ 8 | From ESP | n/a | |
 | TempMode | integer | 0,1 | To/From ESP | optional | 0=degC<BR>1=degF |
-| TempOffset | float | -10..+10 | To/From ESP | **YES** | Temperature probe offset |
+| TempOffset | float | -10.0 .. +10.0 | To/From ESP | **YES** | Temperature probe offset |
 | Thermostat | int | 0,1 | To/From ESP | **YES** | |
 | ThermostatMethod | int | 0,1,2 | To/From ESP | **YES** |0: Conventional  <BR>1: User deadband<BR>2: Linear Hz   |
 | ThermostatOvertemp | int | 0, 2..10 | To/From ESP | **YES** | Cyclic mode <BR>Shutdown (suspend) heater if this much over set point. <BR>0 => disabled <BR>**Deprecated**|