diff --git a/code/game/atoms.dm b/code/game/atoms.dm
index 99b56c346e..e4fa37f77a 100644
--- a/code/game/atoms.dm
+++ b/code/game/atoms.dm
@@ -696,7 +696,11 @@ var/using_new_click_proc = 0 //TODO ERRORAGE (This is temporary, while the DblCl
 		if (in_range)
 			if (!( human.restrained() || human.lying ))
 				if (W)
-					attackby(W,human)
+					var/was_used = 0
+					if(W)
+						was_used = W.is_used_on(src, human)
+					if(!was_used)
+						attackby(W,human)
 					if (W)
 						W.afterattack(src, human)
 				else
diff --git a/code/game/machinery/doors/airlock.dm b/code/game/machinery/doors/airlock.dm
index 935cae8240..0bc9dfdd50 100644
--- a/code/game/machinery/doors/airlock.dm
+++ b/code/game/machinery/doors/airlock.dm
@@ -1198,7 +1198,7 @@ About the new airlock wires panel:
 			beingcrowbarred = 1 //derp, Agouri
 		else
 			beingcrowbarred = 0
-		if( beingcrowbarred && (density && welded && !operating && src.p_open && (!src.arePowerSystemsOn() || stat & NOPOWER) && !src.locked) )
+		if( beingcrowbarred && (density && welded && operating != 1 && src.p_open && (!src.arePowerSystemsOn() || stat & NOPOWER) && !src.locked) )
 			playsound(src.loc, 'sound/items/Crowbar.ogg', 100, 1)
 			user.visible_message("[user] removes the electronics from the airlock assembly.", "You start to remove electronics from the airlock assembly.")
 			if(do_after(user,40))
@@ -1243,6 +1243,8 @@ About the new airlock wires panel:
 					ae = electronics
 					electronics = null
 					ae.loc = src.loc
+				if(operating == -1)
+					ae.icon_state = "door_electronics_smoked"
 
 				del(src)
 				return
@@ -1250,7 +1252,7 @@ About the new airlock wires panel:
 			user << "\blue The airlock's motors resist your efforts to force it."
 		else if(locked)
 			user << "\blue The airlock's bolts prevent it from being forced."
-		else if( !welded && !operating )
+		else if( !welded && operating != 1 )
 			if(density)
 				if(beingcrowbarred == 0) //being fireaxe'd
 					var/obj/item/weapon/twohanded/fireaxe/F = C
diff --git a/code/game/objects/items/devices/debugger.dm b/code/game/objects/items/devices/debugger.dm
new file mode 100644
index 0000000000..d90edfa1ba
--- /dev/null
+++ b/code/game/objects/items/devices/debugger.dm
@@ -0,0 +1,44 @@
+/**
+ * Multitool -- A multitool is used for hacking electronic devices.
+ * TO-DO -- Using it as a power measurement tool for cables etc. Nannek.
+ *
+ */
+
+/obj/item/device/debugger
+	name = "multitool"
+	desc = "Used for pulsing wires to test which to cut. Not recommended by doctors."
+	icon_state = "multitool"
+	flags = FPRINT | TABLEPASS| CONDUCT
+	force = 5.0
+	w_class = 2.0
+	throwforce = 5.0
+	throw_range = 15
+	throw_speed = 3
+	desc = "You can use this on airlocks or APCs to try to hack them without cutting wires."
+	m_amt = 50
+	g_amt = 20
+	origin_tech = "magnets=1;engineering=1"
+	var/obj/machinery/telecomms/buffer // simple machine buffer for device linkage
+
+/obj/item/device/debugger/is_used_on(obj/O, mob/user)
+	if(istype(O, /obj/machinery/power/apc))
+		var/obj/machinery/power/apc/A = O
+		if(A.emagged || A.malfhack)
+			usr << "\red There is a software error with the device."
+		else
+			usr << "\blue The device's software appears to be fine."
+		return 1
+	if(istype(O, /obj/machinery/door))
+		var/obj/machinery/door/D = O
+		if(D.operating == -1)
+			usr << "\red There is a software error with the device."
+		else
+			usr << "\blue The device's software appears to be fine."
+		return 1
+	else if(istype(O, /obj/machinery))
+		var/obj/machinery/A = O
+		if(A.emagged)
+			usr << "\red There is a software error with the device."
+		else
+			usr << "\blue The device's software appears to be fine."
+		return 1
\ No newline at end of file
diff --git a/code/game/objects/objs.dm b/code/game/objects/objs.dm
index 66cb1998d0..d68a7b3c8d 100644
--- a/code/game/objects/objs.dm
+++ b/code/game/objects/objs.dm
@@ -16,6 +16,8 @@
 	var/damtype = "brute"
 	var/force = 0
 
+/obj/item/proc/is_used_on(obj/O, mob/user)
+
 /obj/proc/process()
 	processing_objects.Remove(src)
 	return 0
diff --git a/code/game/objects/structures/door_assembly.dm b/code/game/objects/structures/door_assembly.dm
index ea06d19ed6..7ece9970d5 100644
--- a/code/game/objects/structures/door_assembly.dm
+++ b/code/game/objects/structures/door_assembly.dm
@@ -349,7 +349,7 @@ obj/structure/door_assembly
 			src.state = 0
 			src.name = "Secured Airlock Assembly"
 
-	else if(istype(W, /obj/item/weapon/airlock_electronics) && state == 1 )
+	else if(istype(W, /obj/item/weapon/airlock_electronics) && state == 1 && W:icon_state != "door_electronics_smoked")
 		playsound(src.loc, 'sound/items/Screwdriver.ogg', 100, 1)
 		user.visible_message("[user] installs the electronics into the airlock assembly.", "You start to install electronics into the airlock assembly.")
 		user.drop_item()
diff --git a/code/modules/power/apc.dm b/code/modules/power/apc.dm
index c3139f1682..f25abe3c76 100644
--- a/code/modules/power/apc.dm
+++ b/code/modules/power/apc.dm
@@ -187,10 +187,7 @@
 			else
 				icon_state = basestate
 		else if (opened == 2)
-			if ((stat & BROKEN) || malfhack )
-				icon_state = "[basestate]-b-nocover"
-			else /* if (emagged)*/
-				icon_state = "[basestate]-nocover"
+			icon_state = "[basestate]-nocover"
 	else if (stat & BROKEN)
 		icon_state = "apc-b"
 	else if(emagged || malfai)
diff --git a/icons/obj/doors/door_assembly.dmi b/icons/obj/doors/door_assembly.dmi
index 10e85722a7..691f53a76f 100644
Binary files a/icons/obj/doors/door_assembly.dmi and b/icons/obj/doors/door_assembly.dmi differ
diff --git a/icons/obj/hacktool.dmi b/icons/obj/hacktool.dmi
new file mode 100644
index 0000000000..b1d6753ff1
Binary files /dev/null and b/icons/obj/hacktool.dmi differ