I automated the search for the faulty sensor:
```pythonfrom scapy.all import *import struct
machines = []current = {}
for packet in rdpcap('bacnet.pcap'):    if packet["IP"].src == "10.159.40.200":        continue    if bytes(packet)[56:58] == b"\x19\x4d":        if "name" in current:            machines.append(current)        current = {}        current["name"] = bytes(packet)[62:len(bytes(packet))-1]    elif bytes(packet)[56:58] == b"\x19\x75":        current["units"] = bytes(packet)[59:61]    elif bytes(packet)[56:58] == b"\x19\x55":        current["value"] = struct.unpack('>f', bytes(packet)[60:64])[0]
lists = {}for m in machines:    if "units" not in m:        continue    if m["units"] not in lists:        lists[m["units"]] = []    lists[m["units"]].append(m)
for x in lists:    print(lists[x][0]["units"], end=" ")    all_values = [m["value"] for m in lists[x]]    print(min(all_values), max(all_values))
print(lists[b"\x91\x13"])for m in lists[b"\x91\x13"]:    if m["value"] >= 80000:        print(m)```