diff --git a/tcl/ls.addon b/tcl/ls.addon
index 88c2514..a47e769 100644
--- a/tcl/ls.addon
+++ b/tcl/ls.addon
@@ -1,4 +1,7 @@
-addonDesc = simple lakeshore
+addonDesc = lakeshore 340 with 2 channels
 
-#makenv t ls340
-#makenv t2 ls370
+makenv ts -driver lsc_s40 {
+  lsc_sensor tm A -sensor manual -sensorname sample
+  lsc_sensor tm B -sensor manual -sensorname capillary
+  lsc_loop set -loop 1 -channel B -maxheater 50W -resist 10Ohm -color green
+}