The Decentlab DL-ATM41G2 is a LoRaWAN weather station that reports solar radiation, precipitation, lightning, wind speed, wind direction, temperature, barometric pressure, humidity, tilt and vapour pressure. It is rated IP67, it runs on a replaceable 2 C alkaline battery and it works from -20 to 50 °C.
An uplink from the device as it arrives at the network server, and what the official decoder returns for it. Examples come from the decoder's own test cases.
Payload (hex)
02 5E F8 00 03 80 5C 00 00 80 00 80 00 80 34 84 B3 80 36 80 E7 80 86 A6 01 81 D6 80 ED 81 C9 80 9F 80 00 11 70 00 01 0A DCDecoded (JSON)
{
"air_temperature": {
"displayName": "Air temperature",
"unit": "°C",
"value": 23.1
},
"barometric_pressure": {
"displayName": "Barometric pressure",
"unit": "kPa",
"value": 97.29
},
"battery_voltage": {
"displayName": "Battery voltage",
"unit": "V",
"value": 2.78
},
"cumulative_precipitation": {
"displayName": "Cumulative precipitation",
"unit": "mm",
"value": 70
},
"device_id": 24312,
"internal_temperature": {
"displayName": "Internal temperature",
"unit": "°C",
"value": 23.7
},
"lightning_average_distance": {
"displayName": "Lightning average distance",
"unit": "km",
"value": 0
},
"lightning_strike_count": {
"displayName": "Lightning strike count",
"unit": "None",
"value": 0
},
"maximum_wind_speed": {
"displayName": "Maximum wind speed",
"unit": "m⋅s⁻¹",
"value": 0.54
},
"precipitation": {
"displayName": "Precipitation",
"unit": "mm",
"value": 0
},
"precipitation_electrical_conductivity": {
"displayName": "Precipitation electrical conductivity",
"unit": "µS⋅cm⁻¹",
"value": 0
},
"protocol_version": 2,
"relative_humidity": {
"displayName": "Relative humidity",
"unit": "%",
"value": 47
},
"solar_radiation": {
"displayName": "Solar radiation",
"unit": "W⋅m⁻²",
"value": 9.2
},
"tilt_angle_x_orientation": {
"displayName": "Tilt angle, X orientation",
"unit": "°",
"value": 45.7
},
"tilt_angle_y_orientation": {
"displayName": "Tilt angle, Y orientation",
"unit": "°",
"value": 15.9
},
"vapor_pressure": {
"displayName": "Vapor pressure",
"unit": "kPa",
"value": 1.34
},
"wind_direction": {
"displayName": "Wind direction",
"unit": "°",
"value": 120.3
},
"wind_speed": {
"displayName": "Wind speed",
"unit": "m⋅s⁻¹",
"value": 0.52
}
}| Field | Value |
|---|---|
| air_temperature | 23.1 °C |
| barometric_pressure | 97.29 kPa |
| battery_voltage | 2.78 V |
| cumulative_precipitation | 70 mm |
| device_id | 24312 |
| internal_temperature | 23.7 °C |
| lightning_average_distance | 0 km |
| lightning_strike_count | 0 None |
| maximum_wind_speed | 0.54 m⋅s⁻¹ |
| precipitation | 0 mm |
| precipitation_electrical_conductivity | 0 µS⋅cm⁻¹ |
| protocol_version | 2 |
| relative_humidity | 47 % |
| solar_radiation | 9.2 W⋅m⁻² |
| tilt_angle_x_orientation | 45.7 ° |
| tilt_angle_y_orientation | 15.9 ° |
| vapor_pressure | 1.34 kPa |
| wind_direction | 120.3 ° |
| wind_speed | 0.52 m⋅s⁻¹ |
Add it to The Things Stack, ChirpStack, Actility ThingPark or LORIOT with its DevEUI, JoinEUI and AppKey and the frequency plan of your region.
In The Things Stack, pick the model from the device repository and its decoder is applied for you. In ChirpStack v4, paste the official decoder as the device profile's JavaScript codec.
Set up the integration once per network server; every device registered there then reaches Cloud Studio IoT with its decoded values.
The decoded fields become device variables for dashboards, alarms by email or SMS, and scheduled reports.
Device facts and decoder examples: The Things Network Device Repository (Apache-2.0) · commit a49b17a, imported 2026-09-18.