diff --git a/meta-palmetto/recipes-phosphor/sensors/phosphor-hwmon%.bbappend b/meta-palmetto/recipes-phosphor/sensors/phosphor-hwmon%.bbappend
new file mode 100644
index 0000000..539a55c
--- /dev/null
+++ b/meta-palmetto/recipes-phosphor/sensors/phosphor-hwmon%.bbappend
@@ -0,0 +1,9 @@
+FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+
+NAMES = "i2c@1e78a000/i2c-bus@40/rtc@68 i2c@1e78a000/i2c-bus@c0/tmp423@4c"
+ITEMSFMT = "ahb/apb/{0}.conf"
+
+ITEMS = "${@compose_list(d, 'ITEMSFMT', 'NAMES')}"
+
+ENVS = "obmc/hwmon/{0}"
+SYSTEMD_ENVIRONMENT_FILE_${PN} += "${@compose_list(d, 'ENVS', 'ITEMS')}"
diff --git a/meta-palmetto/recipes-phosphor/sensors/phosphor-hwmon%/obmc/hwmon/ahb/apb/i2c@1e78a000/i2c-bus@40/rtc@68.conf b/meta-palmetto/recipes-phosphor/sensors/phosphor-hwmon%/obmc/hwmon/ahb/apb/i2c@1e78a000/i2c-bus@40/rtc@68.conf
new file mode 100644
index 0000000..8b6053e
--- /dev/null
+++ b/meta-palmetto/recipes-phosphor/sensors/phosphor-hwmon%/obmc/hwmon/ahb/apb/i2c@1e78a000/i2c-bus@40/rtc@68.conf
@@ -0,0 +1,3 @@
+LABEL_temp1=rtc
+WARNLO_temp1=10000
+WARNHI_temp1=35000
diff --git a/meta-palmetto/recipes-phosphor/sensors/phosphor-hwmon%/obmc/hwmon/ahb/apb/i2c@1e78a000/i2c-bus@c0/tmp423@4c.conf b/meta-palmetto/recipes-phosphor/sensors/phosphor-hwmon%/obmc/hwmon/ahb/apb/i2c@1e78a000/i2c-bus@c0/tmp423@4c.conf
new file mode 100644
index 0000000..3166f32
--- /dev/null
+++ b/meta-palmetto/recipes-phosphor/sensors/phosphor-hwmon%/obmc/hwmon/ahb/apb/i2c@1e78a000/i2c-bus@c0/tmp423@4c.conf
@@ -0,0 +1,7 @@
+LABEL_temp1=ambient
+WARNLO_temp1=10000
+WARNHI_temp1=40000
+
+LABEL_temp2=cpu
+WARNLO_temp2=10000
+WARNHI_temp2=80000