diff --git a/device/mellanox/x86_64-mlnx_msn2740-r0/sensors.conf b/device/mellanox/x86_64-mlnx_msn2740-r0/sensors.conf
new file mode 100644
index 0000000000..a3e3039186
--- /dev/null
+++ b/device/mellanox/x86_64-mlnx_msn2740-r0/sensors.conf
@@ -0,0 +1,21 @@
+bus "i2c-7" "i2c-1-mux (chan_id 5)"
+chip "lm75-i2c-7-4a"
+    label temp1 "Ambient Port Temp"
+
+bus "i2c-5" "i2c-1-mux (chan_id 3)"
+chip "ucd9200-i2c-5-27"
+    label in1 "UCD1 vin"
+    label in2 "ASIC 3.3 vout"
+    label in3 "ASIC 1.2 vout"
+    label temp1 "UCD1 Temp"
+    label temp2 "UCD1 Temp2"
+
+chip "ucd9200-i2c-5-41"
+    label in1 "UCD2 vin"
+    label in2 "ASIC Vcore vout"
+    label temp1 "UCD2 Temp1"
+    label temp2 "UCD2 Temp2"
+
+bus "i2c-17" "i2c-1-mux (chan_id 7)"
+chip "lm75-i2c-17-49"
+    label temp1 "Ambient Board Temp"