diff --git a/examples/lua/pts.lua b/examples/lua/pts.lua
new file mode 100644
index 0000000..446fd12
--- /dev/null
+++ b/examples/lua/pts.lua
@@ -0,0 +1,13 @@
+send("\n")
+msleep(100)
+read_ts(650, 60) -- main menu
+send("S") -- S menu
+msleep(30)
+read_ts(650, 60)
+send("t") -- Parallel Value Table
+read_ts(650, 60)
+while true do
+  msleep(970)
+  send("t")
+  read_ts(650, 50) -- repeat PVT forever
+end
diff --git a/man/tio.1.txt b/man/tio.1.txt
index 7c872f5..69a30b5 100644
--- a/man/tio.1.txt
+++ b/man/tio.1.txt
@@ -375,6 +375,13 @@ SCRIPT API
 
              On success, returns read string as second return value.
 
+       read_ts(size, timeout)
+             Read from serial device. If timeout is 0 or not provided it will wait forever until data is ready to read.
+
+             Returns number of bytes read on success, 0 on timeout, or -1 on error.
+
+             On success, returns read string as second return value.  Additionally, emit timestamp to stdout and log file per options.timestamp and options.log.
+
        set{line=state, ...}
              Set state of one or multiple tty modem lines.