diff --git a/inc/config.h b/inc/config.h
index 533d593..421a96d 100644
--- a/inc/config.h
+++ b/inc/config.h
@@ -56,12 +56,29 @@ const uint16_t GatePulses[5] = {250, 500, 750, 1000, 1250};
 const double Tau = 8250;
 
 
+
 /**
- * @brief Hysteresis value
- * Anything below this value will keep or turn on the associated 
- * pin in thermostat mode.
+ * @brief The upper Hystersis value.(Override)
+ * This is the upper bound of the digital/boolean hysteresis curve. It 
+ * takes presidence over the value in `/src/load.h`
+ *
+ * If the input is below low it always sets the output high.
+ * If the input is between high and low with the output high it stays high.
+ * If the input is above high and the ouput is high it's set low.
  */
-#define HYSTERESIS 900
+#define HYSTERESIS_HI 900
+
+
+/**
+ * @brief The lower Hystersis value.(Override)
+ * This is the upper bound of the digital/boolean hysteresis curve. It 
+ * takes presidence over the value in `/src/load.h`
+ *
+ * If the input is below low it always sets the output high.
+ * If the input is between high and low with the output high it stays high.
+ * If the input is above high and the ouput is high it's set low.
+ */
+#define HYSTERESIS_LO 700
 
 
 #endif //CONFIG_H