diff --git a/_maps/map_files/stations/boxstation.dmm b/_maps/map_files/stations/boxstation.dmm
index 319115539fd..27030d3834e 100644
--- a/_maps/map_files/stations/boxstation.dmm
+++ b/_maps/map_files/stations/boxstation.dmm
@@ -15268,6 +15268,9 @@
 /obj/machinery/atmospherics/portable/canister/nitrogen{
 	anchored = 1
 	},
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "n2_sensor"
+	},
 /turf/simulated/floor/engine/n2,
 /area/station/engineering/atmos)
 "bbN" = (
@@ -15282,6 +15285,9 @@
 /obj/machinery/atmospherics/portable/canister/oxygen{
 	anchored = 1
 	},
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "o2_sensor"
+	},
 /turf/simulated/floor/engine/o2,
 /area/station/engineering/atmos)
 "bbP" = (
@@ -15906,6 +15912,10 @@
 /obj/machinery/atmospherics/portable/canister/air{
 	anchored = 1
 	},
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "air_sensor";
+	output = 127
+	},
 /turf/simulated/floor/engine/air,
 /area/station/engineering/atmos)
 "bdH" = (
@@ -37653,7 +37663,12 @@
 	},
 /area/station/command/office/ce)
 "cIf" = (
-/obj/machinery/atmospherics/portable/canister/sleeping_agent,
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "n2o_sensor"
+	},
+/obj/machinery/atmospherics/portable/canister/sleeping_agent{
+	anchored = 1
+	},
 /turf/simulated/floor/engine/n20,
 /area/station/engineering/atmos)
 "cIg" = (
@@ -38602,7 +38617,12 @@
 /turf/simulated/floor/plasteel,
 /area/station/maintenance/aft)
 "cLV" = (
-/obj/machinery/atmospherics/portable/canister/toxins,
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "tox_sensor"
+	},
+/obj/machinery/atmospherics/portable/canister/toxins{
+	anchored = 1
+	},
 /turf/simulated/floor/engine/plasma,
 /area/station/engineering/atmos)
 "cLW" = (
@@ -39934,7 +39954,12 @@
 	},
 /area/station/engineering/smes)
 "cRi" = (
-/obj/machinery/atmospherics/portable/canister/carbon_dioxide,
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "co2_sensor"
+	},
+/obj/machinery/atmospherics/portable/canister/carbon_dioxide{
+	anchored = 1
+	},
 /turf/simulated/floor/engine/co2,
 /area/station/engineering/atmos)
 "cRj" = (
@@ -55234,9 +55259,8 @@
 /turf/simulated/floor/plating,
 /area/station/maintenance/asmaint)
 "hrg" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "air_sensor";
-	output = 127
+/obj/effect/turf_decal/alphanumeric/air{
+	dir = 1
 	},
 /turf/simulated/floor/engine/air,
 /area/station/engineering/atmos)
@@ -58677,8 +58701,8 @@
 /turf/simulated/floor/carpet,
 /area/station/command/office/captain)
 "jeG" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "n2o_sensor"
+/obj/effect/turf_decal/alphanumeric/nitrous_oxide{
+	dir = 8
 	},
 /turf/simulated/floor/engine/n20,
 /area/station/engineering/atmos)
@@ -60826,8 +60850,8 @@
 /turf/simulated/floor/engine/n2,
 /area/station/engineering/atmos)
 "khY" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "o2_sensor"
+/obj/effect/turf_decal/alphanumeric/oxygen{
+	dir = 1
 	},
 /turf/simulated/floor/engine/o2,
 /area/station/engineering/atmos)
@@ -66623,8 +66647,8 @@
 	},
 /area/station/medical/sleeper)
 "mVr" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "n2_sensor"
+/obj/effect/turf_decal/alphanumeric/nitrogen{
+	dir = 1
 	},
 /turf/simulated/floor/engine/n2,
 /area/station/engineering/atmos)
@@ -72617,8 +72641,8 @@
 /turf/simulated/floor/carpet,
 /area/station/command/office/hop)
 "pUX" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "co2_sensor"
+/obj/effect/turf_decal/alphanumeric/carbon_dioxide{
+	dir = 8
 	},
 /turf/simulated/floor/engine/co2,
 /area/station/engineering/atmos)
@@ -76561,6 +76585,12 @@
 	icon_state = "darkred"
 	},
 /area/station/hallway/secondary/exit)
+"rLI" = (
+/obj/effect/turf_decal/alphanumeric/mix{
+	dir = 8
+	},
+/turf/simulated/floor/engine/vacuum,
+/area/station/engineering/atmos)
 "rLK" = (
 /obj/machinery/newscaster/directional/west,
 /obj/structure/sink/directional/east,
@@ -82980,8 +83010,8 @@
 /turf/simulated/wall,
 /area/station/maintenance/disposal)
 "vdD" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "tox_sensor"
+/obj/effect/turf_decal/alphanumeric/plasma{
+	dir = 8
 	},
 /turf/simulated/floor/engine/plasma,
 /area/station/engineering/atmos)
@@ -125974,7 +126004,7 @@ cxO
 cQp
 cZS
 olG
-pRS
+rLI
 ecy
 cZS
 gMP
@@ -126231,7 +126261,7 @@ cxO
 cQp
 cZS
 cSs
-cSw
+pRS
 cSw
 cZS
 cWZ
diff --git a/_maps/map_files/stations/cerestation.dmm b/_maps/map_files/stations/cerestation.dmm
index 9a216fef352..645f5f7376d 100644
--- a/_maps/map_files/stations/cerestation.dmm
+++ b/_maps/map_files/stations/cerestation.dmm
@@ -12135,6 +12135,9 @@
 /obj/machinery/atmospherics/portable/canister/nitrogen{
 	anchored = 1
 	},
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "n2_sensor"
+	},
 /turf/simulated/floor/engine/n2,
 /area/station/engineering/atmos)
 "bOl" = (
@@ -12849,11 +12852,14 @@
 /obj/machinery/atmospherics/portable/canister/oxygen{
 	anchored = 1
 	},
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "o2_sensor"
+	},
 /turf/simulated/floor/engine/o2,
 /area/station/engineering/atmos)
 "bSo" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "o2_sensor"
+/obj/effect/turf_decal/alphanumeric/oxygen{
+	dir = 4
 	},
 /turf/simulated/floor/engine/o2,
 /area/station/engineering/atmos)
@@ -13354,6 +13360,10 @@
 /obj/machinery/atmospherics/portable/canister/air{
 	anchored = 1
 	},
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "air_sensor";
+	output = 127
+	},
 /turf/simulated/floor/engine/air,
 /area/station/engineering/atmos)
 "bUT" = (
@@ -13803,8 +13813,8 @@
 /turf/simulated/floor/engine/co2,
 /area/station/engineering/atmos)
 "bWO" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "co2_sensor"
+/obj/effect/turf_decal/alphanumeric/carbon_dioxide{
+	dir = 1
 	},
 /turf/simulated/floor/engine/co2,
 /area/station/engineering/atmos)
@@ -13823,8 +13833,8 @@
 /turf/simulated/floor/engine/plasma,
 /area/station/engineering/atmos)
 "bWR" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "tox_sensor"
+/obj/effect/turf_decal/alphanumeric/plasma{
+	dir = 1
 	},
 /turf/simulated/floor/engine/plasma,
 /area/station/engineering/atmos)
@@ -13843,8 +13853,8 @@
 /turf/simulated/floor/engine/n20,
 /area/station/engineering/atmos)
 "bWU" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "n2o_sensor"
+/obj/effect/turf_decal/alphanumeric/nitrous_oxide{
+	dir = 1
 	},
 /turf/simulated/floor/engine/n20,
 /area/station/engineering/atmos)
@@ -13979,6 +13989,9 @@
 /obj/machinery/atmospherics/portable/canister/carbon_dioxide{
 	anchored = 1
 	},
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "co2_sensor"
+	},
 /turf/simulated/floor/engine/co2,
 /area/station/engineering/atmos)
 "bXx" = (
@@ -13988,6 +14001,9 @@
 /obj/machinery/atmospherics/portable/canister/toxins{
 	anchored = 1
 	},
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "tox_sensor"
+	},
 /turf/simulated/floor/engine/plasma,
 /area/station/engineering/atmos)
 "bXz" = (
@@ -13997,6 +14013,9 @@
 /obj/machinery/atmospherics/portable/canister/sleeping_agent{
 	anchored = 1
 	},
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "n2o_sensor"
+	},
 /turf/simulated/floor/engine/n20,
 /area/station/engineering/atmos)
 "bXB" = (
@@ -29932,8 +29951,8 @@
 	},
 /area/station/service/chapel/office)
 "eMF" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "n2_sensor"
+/obj/effect/turf_decal/alphanumeric/nitrogen{
+	dir = 4
 	},
 /turf/simulated/floor/engine/n2,
 /area/station/engineering/atmos)
@@ -37038,9 +37057,8 @@
 /turf/simulated/floor/plating/asteroid/ancient,
 /area/station/maintenance/port2)
 "gtA" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "air_sensor";
-	output = 127
+/obj/effect/turf_decal/alphanumeric/air{
+	dir = 4
 	},
 /turf/simulated/floor/engine/air,
 /area/station/engineering/atmos)
@@ -106181,6 +106199,12 @@
 /obj/effect/turf_decal/box,
 /turf/simulated/floor/plating,
 /area/station/maintenance/disposal/external/southeast)
+"vaB" = (
+/obj/effect/turf_decal/alphanumeric/mix{
+	dir = 1
+	},
+/turf/simulated/floor/engine/vacuum,
+/area/station/engineering/atmos)
 "vaC" = (
 /obj/effect/spawner/random/maintenance,
 /obj/structure/table,
@@ -154439,8 +154463,8 @@ bUW
 anq
 bWc
 fuk
+vaB
 bWX
-bXB
 bYf
 bDR
 ilx
diff --git a/_maps/map_files/stations/deltastation.dmm b/_maps/map_files/stations/deltastation.dmm
index 56d95be61c2..0986b947734 100644
--- a/_maps/map_files/stations/deltastation.dmm
+++ b/_maps/map_files/stations/deltastation.dmm
@@ -3091,6 +3091,12 @@
 	icon_state = "redyellowfull"
 	},
 /area/station/maintenance/fore2)
+"arn" = (
+/obj/effect/turf_decal/alphanumeric/mix{
+	dir = 4
+	},
+/turf/simulated/floor/engine/vacuum,
+/area/station/engineering/atmos)
 "aro" = (
 /obj/effect/decal/cleanable/dirt,
 /obj/effect/spawner/random/maintenance,
@@ -11924,6 +11930,10 @@
 /obj/machinery/atmospherics/portable/canister/air{
 	anchored = 1
 	},
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "air_sensor";
+	output = 127
+	},
 /turf/simulated/floor/engine/air,
 /area/station/engineering/atmos)
 "aVU" = (
@@ -12684,6 +12694,9 @@
 /obj/machinery/atmospherics/portable/canister/carbon_dioxide{
 	anchored = 1
 	},
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "co2_sensor"
+	},
 /turf/simulated/floor/engine/co2,
 /area/station/engineering/atmos)
 "aYy" = (
@@ -13474,6 +13487,9 @@
 /obj/machinery/atmospherics/portable/canister/oxygen{
 	anchored = 1
 	},
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "o2_sensor"
+	},
 /turf/simulated/floor/engine/o2,
 /area/station/engineering/atmos)
 "bca" = (
@@ -13921,6 +13937,9 @@
 /obj/machinery/atmospherics/portable/canister/toxins{
 	anchored = 1
 	},
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "tox_sensor"
+	},
 /turf/simulated/floor/engine/plasma,
 /area/station/engineering/atmos)
 "beI" = (
@@ -14512,6 +14531,9 @@
 /obj/machinery/atmospherics/portable/canister/nitrogen{
 	anchored = 1
 	},
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "n2_sensor"
+	},
 /turf/simulated/floor/engine/n2,
 /area/station/engineering/atmos)
 "bhu" = (
@@ -15386,6 +15408,9 @@
 /obj/machinery/atmospherics/portable/canister/sleeping_agent{
 	anchored = 1
 	},
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "n2o_sensor"
+	},
 /turf/simulated/floor/engine/n20,
 /area/station/engineering/atmos)
 "bkB" = (
@@ -64180,8 +64205,8 @@
 /turf/simulated/floor/plasteel,
 /area/station/supply/storage)
 "jKW" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "tox_sensor"
+/obj/effect/turf_decal/alphanumeric/plasma{
+	dir = 4
 	},
 /turf/simulated/floor/engine/plasma,
 /area/station/engineering/atmos)
@@ -70666,8 +70691,8 @@
 /turf/simulated/floor/plating,
 /area/station/maintenance/fore)
 "mIh" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "n2_sensor"
+/obj/effect/turf_decal/alphanumeric/nitrogen{
+	dir = 8
 	},
 /turf/simulated/floor/engine/n2,
 /area/station/engineering/atmos)
@@ -80615,8 +80640,8 @@
 /turf/simulated/floor/plasteel,
 /area/station/maintenance/fore)
 "qWZ" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "o2_sensor"
+/obj/effect/turf_decal/alphanumeric/oxygen{
+	dir = 8
 	},
 /turf/simulated/floor/engine/o2,
 /area/station/engineering/atmos)
@@ -91540,9 +91565,8 @@
 	},
 /area/station/engineering/atmos)
 "vom" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "air_sensor";
-	output = 127
+/obj/effect/turf_decal/alphanumeric/air{
+	dir = 8
 	},
 /turf/simulated/floor/engine/air,
 /area/station/engineering/atmos)
@@ -93120,8 +93144,8 @@
 /turf/simulated/floor/engine,
 /area/station/medical/chemistry)
 "vXf" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "n2o_sensor"
+/obj/effect/turf_decal/alphanumeric/nitrous_oxide{
+	dir = 4
 	},
 /turf/simulated/floor/engine/n20,
 /area/station/engineering/atmos)
@@ -93171,8 +93195,8 @@
 	},
 /area/station/engineering/gravitygenerator)
 "vYt" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "co2_sensor"
+/obj/effect/turf_decal/alphanumeric/carbon_dioxide{
+	dir = 4
 	},
 /turf/simulated/floor/engine/co2,
 /area/station/engineering/atmos)
@@ -117905,7 +117929,7 @@ bkw
 biK
 aOg
 bpw
-bpv
+jGV
 bpv
 aOg
 abj
@@ -118162,7 +118186,7 @@ vXf
 tnu
 aOg
 ibK
-jGV
+arn
 xBO
 aOg
 abj
diff --git a/_maps/map_files/stations/emeraldstation.dmm b/_maps/map_files/stations/emeraldstation.dmm
index 409cb5a001e..4c7caac8898 100644
--- a/_maps/map_files/stations/emeraldstation.dmm
+++ b/_maps/map_files/stations/emeraldstation.dmm
@@ -7978,7 +7978,12 @@
 	},
 /area/station/medical/reception)
 "bDz" = (
-/obj/machinery/atmospherics/portable/canister/carbon_dioxide,
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "co2_sensor"
+	},
+/obj/machinery/atmospherics/portable/canister/carbon_dioxide{
+	anchored = 1
+	},
 /turf/simulated/floor/engine/co2,
 /area/station/engineering/atmos)
 "bDA" = (
@@ -10711,6 +10716,10 @@
 	},
 /turf/simulated/floor/plasteel,
 /area/station/engineering/atmos)
+"cdH" = (
+/obj/effect/turf_decal/alphanumeric/mix,
+/turf/simulated/floor/engine/airless,
+/area/station/engineering/atmos)
 "cdM" = (
 /obj/structure/cable{
 	icon_state = "2-8"
@@ -16898,6 +16907,9 @@
 /obj/machinery/atmospherics/portable/canister/nitrogen{
 	anchored = 1
 	},
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "n2_sensor"
+	},
 /turf/simulated/floor/engine/n2,
 /area/station/engineering/atmos)
 "dst" = (
@@ -24048,6 +24060,10 @@
 	icon_state = "cafeteria"
 	},
 /area/station/security/permabrig)
+"ePR" = (
+/obj/effect/turf_decal/alphanumeric/mix,
+/turf/simulated/floor/engine/airless/nodecay,
+/area/station/engineering/atmos/asteroid_filtering)
 "ePU" = (
 /obj/effect/decal/cleanable/dirt,
 /obj/item/circuitboard/thermomachine,
@@ -29492,7 +29508,12 @@
 	},
 /area/station/hallway/secondary/entry)
 "fPw" = (
-/obj/machinery/atmospherics/portable/canister/sleeping_agent,
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "n2o_sensor"
+	},
+/obj/machinery/atmospherics/portable/canister/sleeping_agent{
+	anchored = 1
+	},
 /turf/simulated/floor/engine/n20,
 /area/station/engineering/atmos)
 "fPx" = (
@@ -40458,9 +40479,7 @@
 /turf/simulated/floor/plasteel,
 /area/station/public/storage/tools/auxiliary)
 "ibf" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "n2o_sensor"
-	},
+/obj/effect/turf_decal/alphanumeric/nitrous_oxide,
 /turf/simulated/floor/engine/n20,
 /area/station/engineering/atmos)
 "ibh" = (
@@ -44906,6 +44925,10 @@
 /obj/machinery/atmospherics/portable/canister/air{
 	anchored = 1
 	},
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "air_sensor";
+	output = 127
+	},
 /turf/simulated/floor/engine/air,
 /area/station/engineering/atmos)
 "iTx" = (
@@ -47648,9 +47671,7 @@
 	},
 /area/station/medical/storage)
 "jwh" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "n2_sensor"
-	},
+/obj/effect/turf_decal/alphanumeric/nitrogen,
 /turf/simulated/floor/engine/n2,
 /area/station/engineering/atmos)
 "jwm" = (
@@ -51265,10 +51286,7 @@
 	},
 /area/station/medical/surgery/secondary)
 "kgz" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "air_sensor";
-	output = 127
-	},
+/obj/effect/turf_decal/alphanumeric/air,
 /turf/simulated/floor/engine/air,
 /area/station/engineering/atmos)
 "kgB" = (
@@ -98152,7 +98170,12 @@
 /turf/simulated/floor/wood,
 /area/station/public/fitness)
 "twp" = (
-/obj/machinery/atmospherics/portable/canister/toxins,
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "tox_sensor"
+	},
+/obj/machinery/atmospherics/portable/canister/toxins{
+	anchored = 1
+	},
 /turf/simulated/floor/engine/airless/nodecay,
 /area/station/engineering/atmos/asteroid_filtering)
 "twq" = (
@@ -103109,6 +103132,9 @@
 /obj/machinery/atmospherics/portable/canister/oxygen{
 	anchored = 1
 	},
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "o2_sensor"
+	},
 /turf/simulated/floor/engine/o2,
 /area/station/engineering/atmos)
 "uwZ" = (
@@ -105268,9 +105294,7 @@
 /turf/simulated/floor/plasteel,
 /area/station/maintenance/apmaint2)
 "uSE" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "co2_sensor"
-	},
+/obj/effect/turf_decal/alphanumeric/carbon_dioxide,
 /turf/simulated/floor/engine/co2,
 /area/station/engineering/atmos)
 "uSH" = (
@@ -111897,9 +111921,7 @@
 /turf/simulated/floor/plating,
 /area/station/engineering/tech_storage)
 "wiU" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "tox_sensor"
-	},
+/obj/effect/turf_decal/alphanumeric/plasma,
 /turf/simulated/floor/engine/airless/nodecay,
 /area/station/engineering/atmos/asteroid_filtering)
 "wiW" = (
@@ -116218,9 +116240,7 @@
 /turf/simulated/floor/plating,
 /area/station/maintenance/abandonedservers)
 "xgu" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "o2_sensor"
-	},
+/obj/effect/turf_decal/alphanumeric/oxygen,
 /turf/simulated/floor/engine/o2,
 /area/station/engineering/atmos)
 "xgv" = (
@@ -134998,8 +135018,8 @@ jnP
 aZS
 mjs
 cyu
-rjt
 fbb
+ePR
 eGJ
 aZS
 wXG
@@ -139160,8 +139180,8 @@ jnP
 aZS
 cEY
 wKB
-pSq
 jNm
+cdH
 lkm
 iZC
 mrw
diff --git a/_maps/map_files/stations/metastation.dmm b/_maps/map_files/stations/metastation.dmm
index 845c34cb52d..e75d16f466e 100644
--- a/_maps/map_files/stations/metastation.dmm
+++ b/_maps/map_files/stations/metastation.dmm
@@ -395,8 +395,8 @@
 	},
 /area/station/hallway/secondary/entry/west)
 "aeZ" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "n2_sensor"
+/obj/effect/turf_decal/alphanumeric/nitrogen{
+	dir = 1
 	},
 /turf/simulated/floor/engine/n2,
 /area/station/engineering/atmos)
@@ -18714,6 +18714,9 @@
 /obj/machinery/atmospherics/portable/canister/sleeping_agent{
 	anchored = 1
 	},
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "n2o_sensor"
+	},
 /turf/simulated/floor/engine/n20,
 /area/station/engineering/atmos)
 "bRl" = (
@@ -20010,6 +20013,9 @@
 /obj/machinery/atmospherics/portable/canister/toxins{
 	anchored = 1
 	},
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "tox_sensor"
+	},
 /turf/simulated/floor/engine/plasma,
 /area/station/engineering/atmos)
 "bXB" = (
@@ -20950,6 +20956,9 @@
 /obj/machinery/atmospherics/portable/canister/carbon_dioxide{
 	anchored = 1
 	},
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "co2_sensor"
+	},
 /turf/simulated/floor/engine/co2,
 /area/station/engineering/atmos)
 "ccj" = (
@@ -24167,6 +24176,9 @@
 /obj/machinery/atmospherics/portable/canister/nitrogen{
 	anchored = 1
 	},
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "n2_sensor"
+	},
 /turf/simulated/floor/engine/n2,
 /area/station/engineering/atmos)
 "cqM" = (
@@ -24180,6 +24192,9 @@
 /obj/machinery/atmospherics/portable/canister/oxygen{
 	anchored = 1
 	},
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "o2_sensor"
+	},
 /turf/simulated/floor/engine/o2,
 /area/station/engineering/atmos)
 "cqP" = (
@@ -24199,6 +24214,10 @@
 /obj/machinery/atmospherics/portable/canister/air{
 	anchored = 1
 	},
+/obj/machinery/atmospherics/air_sensor{
+	autolink_id = "air_sensor";
+	output = 127
+	},
 /turf/simulated/floor/engine/air,
 /area/station/engineering/atmos)
 "cqS" = (
@@ -25971,8 +25990,8 @@
 	},
 /area/station/hallway/supply/aft)
 "czb" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "n2o_sensor"
+/obj/effect/turf_decal/alphanumeric/nitrous_oxide{
+	dir = 8
 	},
 /turf/simulated/floor/engine/n20,
 /area/station/engineering/atmos)
@@ -43923,8 +43942,8 @@
 /turf/simulated/floor/plating,
 /area/station/security/main)
 "hnm" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "co2_sensor"
+/obj/effect/turf_decal/alphanumeric/carbon_dioxide{
+	dir = 8
 	},
 /turf/simulated/floor/engine/co2,
 /area/station/engineering/atmos)
@@ -52436,8 +52455,8 @@
 	},
 /area/station/engineering/break_room)
 "knx" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "tox_sensor"
+/obj/effect/turf_decal/alphanumeric/plasma{
+	dir = 8
 	},
 /turf/simulated/floor/engine/plasma,
 /area/station/engineering/atmos)
@@ -55061,8 +55080,8 @@
 /turf/simulated/floor/wood,
 /area/station/command/office/hop)
 "liL" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "o2_sensor"
+/obj/effect/turf_decal/alphanumeric/oxygen{
+	dir = 1
 	},
 /turf/simulated/floor/engine/o2,
 /area/station/engineering/atmos)
@@ -57751,9 +57770,8 @@
 /turf/simulated/floor/wood,
 /area/station/medical/psych)
 "mgZ" = (
-/obj/machinery/atmospherics/air_sensor{
-	autolink_id = "air_sensor";
-	output = 127
+/obj/effect/turf_decal/alphanumeric/air{
+	dir = 1
 	},
 /turf/simulated/floor/engine/air,
 /area/station/engineering/atmos)
@@ -86938,6 +86956,12 @@
 "wUa" = (
 /turf/simulated/wall/r_wall,
 /area/station/maintenance/engimaint)
+"wUc" = (
+/obj/effect/turf_decal/alphanumeric/mix{
+	dir = 8
+	},
+/turf/simulated/floor/engine/vacuum,
+/area/station/engineering/atmos)
 "wUe" = (
 /obj/structure/closet/crate,
 /turf/simulated/floor/plating,
@@ -136889,7 +136913,7 @@ pqT
 abq
 bCM
 sHu
-rLw
+wUc
 cAX
 bCM
 mkK
@@ -137146,7 +137170,7 @@ ffA
 abq
 bCM
 bIx
-bOO
+rLw
 bOO
 bCM
 bPE