diff --git a/README.md b/README.md
index 3b02c17..501b390 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,6 @@
 picoReflow
 ==========
 
-Turns a Raspberry Pi into a universal, web enabled Reflow Oven Controller
+Turns a Raspberry Pi into a universal, web enabled Reflow Oven Controller.
+
+Based on MAX 31855 Cold-Junction K-Type Thermocouple and Raspberry Pi GPIO driven Solid State Relays.