by the way, this has all been running smoothly for the last couple of years, but now I have a few RTL-SDR dongles and I've started transitioning to reading the sensors directly by radio. I think the ObserverIP may be obsolete now but even if not, it's always nicer to run your own server.
You need to sniff both 915MHz and 433MHz. If anyone else is looking at this thread again and considering alternative ways to get data, here's the decoded data that rtl_433 returns, to help you decide... (and the uploads to ambient and wunderground).
Mar 14 15:32:09 linux Weather: Sun Mar 14 15:32:09 CDT 2021 station: {"time" : "2021-03-14 15:32:09.404436", "protocol" : 78,
"model" : "Fineoffset-WH24",
"id" : 84,
"battery_ok" : 1,
"temperature_C" : 24.800, "humidity" : 55, "wind_dir_deg" : 14, "wind_avg_m_s" : 3.500, "wind_max_m_s" : 4.480, "rain_mm" : 2028.000, "uv" : 1604, "uvi" : 4, "light_lux" : 57877.000,
"mic" : "CRC", "mod" : "FSK", "freq1" : 914.860, "freq2" : 914.937, "rssi" : -1.623, "snr" : 22.528, "noise" : -24.151}
# neighbour outdoor? Note humidity 127 signifies that the humidity sensor is absent in this device
{"time" : "2021-03-14 16:10:29.147742", "protocol" : 40,
"model" : "Acurite-Tower",
"id" : 10204,
"channel" : "A", "battery_ok" : 1,
"temperature_C" : 24.400, "humidity" : 127,
"mic" : "CHECKSUM", "mod" : "ASK", "freq" : 432.956, "rssi" : -8.766, "snr" : 5.677, "noise" : -14.443}
# freezer
{"time" : "2021-03-14 16:05:51.433011", "protocol" : 41,
"model" : "Acurite-986",
"id" : 7689,
"channel" : "2F", "battery_ok" : 1,
"temperature_C" : -19.444,
"status" : 0, "mic" : "CRC", "mod" : "ASK", "freq" : 432.948, "rssi" : -0.123, "snr" : 15.548, "noise" : -15.670}
# fridge
{"time" : "2021-03-07 14:56:20.326326", "protocol" : 41,
"model" : "Acurite-986",
"id" : 49269,
"channel" : "1R", "battery_ok" : 1,
"temperature_C" : 2.778,
"status" : 0, "mic" : "CRC", "mod" : "ASK", "freq" : 433.938, "rssi" : -0.937, "snr" : 9.229, "noise" : -10.166}
# living room
Mar 14 15:29:43 linux Weather: Sun Mar 14 15:29:43 CDT 2021 indoor1: {"time" : "2021-03-14 15:29:43.164734", "protocol" : 78,
"model" : "Fineoffset-WH32B",
"id" : 110,
"battery_ok" : 1,
"temperature_C" : 25.200, "humidity" : 52, "pressure_hPa" : 1005.600,
"mic" : "CRC", "mod" : "FSK", "freq1" : 914.862, "freq2" : 914.911, "rssi" : -0.138, "snr" : 24.931, "noise" : -25.068}
# back room
Mar 14 15:30:50 linux Weather: Sun Mar 14 15:30:50 CDT 2021 indoor2: {"time" : "2021-03-14 15:30:50.826468", "protocol" : 113,
"model" : "AmbientWeather-WH31E",
"id" : 224,
"channel" : 2, "battery_ok" : 1,
"temperature_C" : 24.300, "humidity" : 57,
"data" : "b900000000", "mic" : "CRC", "mod" : "FSK", "freq1" : 914.883, "freq2" : 914.956, "rssi" : -0.131, "snr" : 25.024, "noise" : -25.154}
# bedroom
Mar 14 15:24:38 linux Weather: Sun Mar 14 15:24:38 CDT 2021 indoor3: {"time" : "2021-03-14 15:24:38.699753", "protocol" : 113,
"model" : "AmbientWeather-WH31E",
"id" : 196,
"channel" : 3, "battery_ok" : 1,
"temperature_C" : 22.600, "humidity" : 57,
"data" : "5500000000", "mic" : "CRC", "mod" : "FSK", "freq1" : 914.879, "freq2" : 914.929, "rssi" : -0.109, "snr" : 24.401, "noise" : -24.510}
# kitchen
Mar 14 15:29:08 linux Weather: Sun Mar 14 15:29:08 CDT 2021 indoor4: {"time" : "2021-03-14 15:29:08.161605", "protocol" : 113,
"model" : "AmbientWeather-WH31E",
"id" : 183,
"channel" : 4, "battery_ok" : 1,
"temperature_C" : 27.500, "humidity" : 48,
"data" : "a800000000", "mic" : "CRC", "mod" : "FSK", "freq1" : 914.875, "freq2" : 914.882, "rssi" : -6.915, "snr" : 17.448, "noise" : -24.363}
192.168.2.240 - - [14/Mar/2021:15:09:50 -0500] "GET /endpoint?
&PASSKEY=...
&stationtype=WS-1501-IP
&dateutc=20210314+20:09:49
&winddir=350
&windspeedmph=6.93
&windgustmph=10.29
&maxdailygust=27.29
&tempf=74.8
&battout=1
&humidity=62
&hourlyrainin=0.00
&eventrainin=0.00
&dailyrainin=0.00
&weeklyrainin=0.07
&monthlyrainin=0.07
&yearlyrainin=1.56
&totalrainin=1.56
&tempinf=77.2
&battin=1
&humidityin=53
&baromrelin=29.43
&baromabsin=29.70
&uv=4
&solarradiation=429.40
&temp2f=75.74
&humidity2=58
&batt2=1
&temp3f=72.68
&humidity3=56
&batt3=1
&temp4f=81.50
&humidity4=49
&batt4=1
HTTP/1.1" 200 836 "-" "WH2600"
192.168.2.240 - - [14/Mar/2021:15:09:56 -0500] "GET /weatherstation/updateweatherstation.php
?ID=...
&PASSWORD=...
&tempf=74.8
&humidity=62
&dewptf=61.0
&windchillf=74.8
&winddir=350
&windspeedmph=6.93
&windgustmph=10.29
&rainin=0.00
&dailyrainin=0.00
&weeklyrainin=0.07
&monthlyrainin=0.07
&yearlyrainin=1.56
&solarradiation=429.40
&UV=4
&indoortempf=77.2
&indoorhumidity=53
&baromin=29.43
&lowbatt=0
&dateutc=now
&softwaretype=WH2602%20V4.5.6
&action=updateraw
&realtime=1
&rtfreq=5
HTTP/1.0" 200 174 "-" "-"