-plot "/dev/shm/temp.tsv" using 1:2 with points title "DS18B20 deg. C"
+set output '/dev/shm/temp.png'
-set output '/dev/shm/2.png'
-plot "/dev/shm/temp.tsv" using 1:($3 > 1 ? $3 : '') with dots title "DHT22 deg. C"
+set multiplot
+set size 1, 0.5
-set output '/dev/shm/3.png'
-plot "/dev/shm/temp.tsv" using 1:($4 > 3 ? $4 : '') with dots title "DHT22 % hum"
+set origin 0.0, 0.5
+
+plot "/dev/shm/temp.tsv" using 1:2 with points title "DS18B20 deg. C","/dev/shm/temp.tsv" using 1:($3 > 1 && $3 < 45 ? $3 : '') with dots title "DHT22 deg. C"
+set origin 0.0, 0.0
+
+plot "/dev/shm/temp.tsv" using 1:($4 > 3 ? $4 : '') with dots title "DHT22 % hum"