diff --git a/killerbee/dev_sewio.py b/killerbee/dev_sewio.py
index ad45dfb..3c172e9 100755
--- a/killerbee/dev_sewio.py
+++ b/killerbee/dev_sewio.py
@@ -13,10 +13,7 @@
 import time # type: ignore
 import struct # type: ignore
 import time # type: ignore
-try:
-    import urllib.request as urllib2 # type: ignore
-except ImportError:
-    import urllib2 # type: ignore
+import urllib3 # type: ignore
 import re # type: ignore
 from socket import socket, AF_INET, SOCK_DGRAM, SOL_SOCKET, SO_REUSEADDR, timeout as error_timeout # type: ignore
 from struct import unpack # type: ignore
@@ -27,23 +24,23 @@
 DEFAULT_IP = "10.10.10.2"   #IP address of the sniffer
 DEFAULT_GW = "10.10.10.1"   #IP address of the default gateway
 DEFAULT_UDP = 17754         #"Remote UDP Port"
-TESTED_FW_VERS = ["0.5", "0.9"]    #Firmware versions tested with the current version of this client device connector
+TESTED_FW_VERS = ["0.5", "0.9", "0.9.0"]    #Firmware versions tested with the current version of this client device connector
 
 NTP_DELTA = 70*365*24*60*60 #datetime(1970, 1, 1, 0, 0, 0) - datetime(1900, 1, 1, 0, 0, 0)
 
 '''
 Convert the two parts of an NTP timestamp to a datetime object.
 Similar code from Wireshark source:
-575 	/* NTP_BASETIME is in fact epoch - ntp_start_time */
-576 	#define NTP_BASETIME 2208988800ul
-619 	void
-620 	ntp_to_nstime(tvbuff_t *tvb, gint offset, nstime_t *nstime)
-621 	{
-622 	nstime->secs = tvb_get_ntohl(tvb, offset);
-623 	if (nstime->secs)
-624 	nstime->secs -= NTP_BASETIME;
-625 	nstime->nsecs = (int)(tvb_get_ntohl(tvb, offset+4)/(NTP_FLOAT_DENOM/1000000000.0));
-626 	}
+575     /* NTP_BASETIME is in fact epoch - ntp_start_time */
+576     #define NTP_BASETIME 2208988800ul
+619     void
+620     ntp_to_nstime(tvbuff_t *tvb, gint offset, nstime_t *nstime)
+621     {
+622     nstime->secs = tvb_get_ntohl(tvb, offset);
+623     if (nstime->secs)
+624     nstime->secs -= NTP_BASETIME;
+625     nstime->nsecs = (int)(tvb_get_ntohl(tvb, offset+4)/(NTP_FLOAT_DENOM/1000000000.0));
+626     }
 '''
 def ntp_to_system_time(secs, msecs):
     """convert a NTP time to system time"""
@@ -53,10 +50,9 @@ def ntp_to_system_time(secs, msecs):
 
 def getFirmwareVersion(ip):
     try:
-        fw = re.search(r'Firmware version ([0-9.]+)', html.read())
         #TODO: Have timeout handled sooner
-        html = urllib2.urlopen("http://{0}/".format(ip), timeout=1)
-        data = html.read()
+        html = urllib3.request("GET", "http://{0}/".format(ip))
+        data = html.data.decode("utf-8")
         # First try for the "old" web UI parsing:
         fw = re.search(r'Firmware version ([0-9.]+)', data)
         if fw is not None:
@@ -83,10 +79,10 @@ def getMacAddr(ip):
     Returns a string for the MAC address of the sniffer.
     '''
     try:
-        html = urllib.request.urlopen("http://{0}/".format(ip))
+        html = urllib3.request("GET", "http://{0}/".format(ip))
         # Yup, we're going to have to steal the status out of a JavaScript variable
         #var values = removeSSItag('<!--#pindex-->STOPPED,00:1a:b6:00:0a:a4,...
-        res = re.search(r'<!--#pindex-->[A-Z]+,((?:[0-9a-f]{2}:){5}[0-9a-f]{2})', html.read())
+        res = re.search(r'<!--#pindex-->[A-Z]+,((?:[0-9a-f]{2}:){5}[0-9a-f]{2})', html.data.decode("utf-8"))
         if res is None:
             raise KBInterfaceError("Unable to parse the sniffer's MAC address.")
         return res.group(1)
@@ -182,11 +178,11 @@ def __make_rest_call(self, path, fetch=True):
             returns True if an HTTP 200 code was received.
         '''
         try:
-            html = urllib.request.urlopen("http://{0}/{1}".format(self.dev, path))
+            html = urllib3.request("GET", "http://{0}/{1}".format(self.dev, path))
             if fetch:
-                return html.read()
+                return html.data.decode("utf-8")
             else:
-                return (html.getcode() == 200)
+                return (html.status == 200)
         except Exception as e:
             raise KBInterfaceError("Unable to preform a call to {0}/{1} (error: {2}).".format(self.dev, path, e))
 
@@ -349,8 +345,7 @@ def inject(self, packet, channel=None, count=1, delay=0, page=0):
             self.set_channel(channel)
 
         packet_length = len(packet)
-        packet = packet.encode('latin-1') 
-
+        packet = packet.decode('latin-1')
         self.__make_rest_call(
             "inject.cgi?chn={0}&modul=0&txlevel=0&rxen=1&nrepeat={1}&tspace={2}&autocrc=1&spayload={3}&len={4}".format(
                 self._channel, count, delay, packet, packet_length
@@ -516,4 +511,3 @@ def jammer_off(self):
 
         if not self.__make_rest_call("status.cgi?p=4"):
             raise KBInterfaceError("Error instructing sniffer to stop jamming.")
-