Issued: 12 November 2026
Key features
-
Connects wind speed, wind direction, rainfall and solar radiation sensors to one Wildeye logger
-
Supplied with the Davis white junction box, ready for the sensors to plug in
-
All sensors read over SDI-12 via a NACS cable
-
Add Sensor QR code sets the SDI-12 address automatically
Overview
The ACC-EXP-DC connects Davis weather sensors to a Wildeye datalogger, to record wind speed, wind direction, rainfall and solar radiation. It comes with the Davis white junction box, which the anemometer, rain collector and solar radiation sensor plug into, and a 1 m cable with an M12 plug for the logger. Readings appear in mywildeye, where you can chart them and set alerts.
As with all Wildeye Expanders, it features a unique 4-character address to avoid addressing conflicts, and a QR code to easily configure through the Wildeye app. This sets the expander's SDI-12 address automatically.
The ACC-SEXP-DC connects directly to a Wildeye NACS input.
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The rain collector is shipped with a cable tie that locks the tipping mechanism. Cut and remove it before installation, then pour in some water to check the bucket tips freely.
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Davis changed the rain gauge wiring in 2023. A newer rain gauge plugged into an older junction box may not record tips. Contact Wildeye support if this happens.
Specifications
Measurement
|
Wind speed |
Pulse input |
|---|---|
|
Rainfall |
Tipping bucket pulses |
|
Wind direction |
Resistance input |
|
Solar radiation |
0–5 V input |
|
Output |
SDI-12 over NACS plug |
Physical
|
Cable |
PUR, 1 m from M12 plug to junction box |
|---|---|
|
Connector |
M12 5-pin |
|
Junction box |
Davis white junction box (included) |
Connection
Input (from sensor)
|
Connector |
6-core cable |
|---|---|
|
Cable length |
1m |
|
Pin |
Wire colour |
Function |
|---|---|---|
|
Grey |
Wind speed |
|
|
White |
Wind direction |
|
|
Pink |
Solar signal |
|
|
Brown |
Solar 3V supply |
|
|
Blue |
Rain |
|
|
Black |
GND |
Output (to datalogger)
|
Connector |
M12 male, 5 position |
|---|---|
|
Cable length |
100mm |
|
Pin |
Wire colour |
Function |
|---|---|---|
|
1 |
Brown |
V+ |
|
2 |
White |
SDI12 |
|
3 |
Blue |
N/C |
|
4 |
Black |
GND |
|
5 |
Grey |
N/C |
Compatibility
|
Compatible loggers |
Wildeye -NACS plug |
|---|---|
|
Power draw |
2.5mA @ 12V |
|
Mywildeye.com Add Sensor template |
ACC-EXP-DC |
|
Add Sensor QR |
Use this QR code in the Wildeye App to add this sensor |
