diff --git a/scd30mh/0900766b8162791e.pdf b/scd30mh/0900766b8162791e.pdf
new file mode 100644
index 0000000..bc185be
Binary files /dev/null and b/scd30mh/0900766b8162791e.pdf differ
diff --git a/scd30mh/mh-z19b-co2-ver1_0.pdf b/scd30mh/mh-z19b-co2-ver1_0.pdf
new file mode 100644
index 0000000..9b762ae
Binary files /dev/null and b/scd30mh/mh-z19b-co2-ver1_0.pdf differ