Airmar 120WX-RH Weather Station NMEA0813/2000 with Relative Humidity (without cable)
Features
The Model 120WX is Airmar’s solution for recreational boating; feature rich, in
a Durable, Rugged, Small footprint that is IPX4 or IPX6 rated for this
environment.
Reliability and performance, along with no moving parts, makes the 120WX an easy
and affordable choice for your recreational boating needs.
Read the product brochure
- Ultrasonic wind readings
- Apparent Wind speed & angle
- Barometric pressure
- Air temperature
- Wind chill
- Optional relative humidity module
- IPX4 with the RH Option
- IPX6 without the RH Option
- Output: Via a single cable (various
lengths available)
- NMEA 0183 protocol over RS422 interface
and NMEA 2000 protocol over CAN BUS
Specifications
- Wind Speed Range:
- 0 knots to 78 knots (0 MPH to 90 MPH, 0
m/s to 40 m/s)
- Wind Speed Resolution:
- 0.1 knot (0.1 MPH, 0.1 m/s)
- Wind Speed Accuracy @ 0°C to 55°C (32°F to
131°F), no precipitation*:
- Low Wind Speeds:
- 0 -10 knots; 1 knot RMS +10% of
reading
- (0 MPH to 11.5 MPH; 1.1MPH + 10% of
reading)
- (0 m/s to 5 m/s; 0.5 m/s + 10% of
reading)
- High Wind Speeds:
- 10-78 knots; 2 knots RMS or 5%,
whichever is greater
- (11.5 MPH to 90 MPH; 2.3 MPH or 5%,
whichever is greater)
- (5 m/s to 40 m/s; 1 m/s or 5%,
whichever is greater)
- Wind Speed Accuracy in wet conditions**:
- 5 knots RMS (5.7 MPH RMS, 2.5 m/s RMS)
- Wind Direction Range: 0° to 360°
- Wind Direction Resolution: 0.1°
- Wind Direction Accuracy @ 0°C to 55°C
(32°F to 131°F), no precipitation*:
- Low Wind Speeds (5° RMS typical):
- 4 - 10 knots (4.6 MPH to 11.5 MPH, 2
m/s to 5 m/s)
- High Wind Speeds (2° RMS typical):
- >10 knots (>11.5 MPH, >5 m/s)
- Wind Direction Accuracy in wet
conditions** (8° RMS Typical):
- 8 knots (>9.2 MPH, >4 m/s)
- Compass Accuracy:
- 1° static heading accuracy; 2° dynamic
heading accuracy
- Pitch and Roll Range / Accuracy: ±50° /
<1°
- Air Temperature Range***: -40°C to 55°C
(-40°F to 131°F)
- Air Temperature Resolution: 0.1°C (0.1°F)
- Air Temperature Accuracy: ±1.1°C (±2°F)* @
>4 knots wind (>4.6 MPH wind) (>2 m/s wind)
- Barometric Pressure Range: 300 mbar to
1100 mbar (24 inHg to 33 inHg, 800 hPa to 1100 hPa)
- Barometric Pressure Resolution: 0.1 mbar
(0.029 inHg, 0.1 hPa)
- Barometric Pressure Accuracy: ±1 mbar
(±0.029 inHg, ±1 hPa) when altitude correction is available
- Relative Humidity Range: 10% to 95% RH
- Relative Humidity Accuracy*: ±5% units RH
- Operating Temperature Range: -25°C to 55°C
(-13°F to 131°F)
- Supply Voltage: 12 VDC
- Supply Current (@ 12 VDC):
- Output: Via a single cable (various
lengths available)
- NMEA 0183 protocol over RS422 interface
and NMEA 2000 protocol over CAN BUS
- Weight: 300 grams (0.8 lb)
- Mounting Thread Size on Base: Standard
1”-14 UNS (3/4” NPT optional)
- Certifications and Standards:
- CE, IPX6 (Relative Humidity/IPX4), RoHS,
IEC60945
RMS—Root Mean Square, LEN—Load Equivalency Number
*When the wind speed is less than 2 m/s (4.6 MPH) and/or air temperature is
below 0°C (32°F),
wind, temperature, and relative humidity readings will be less accurate.
**Wet conditions include moisture, rain, frost, dew, snow, ice and/or sea spray
in the wind channel.
***Temperature and relative humidity reports invalid during heater operation.
****Airmar has made the address claiming modifications to enable compatibility
with the ISO 11783
communication protocol for the agriculture industry – that is based on the SAE
J1939 protocol.
Additional Information
- Rugged, compact ultrasonic instrument
- Apparent wind speed & angle
- Barometric Pressure
- Air and Wind Chill Temperature
- Low Power consumption
Owner's Guide
17-461-01.pdf
17-461-01-spanish.pdf
17-461-01-french.pdf
17-570-01.pdf
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WARNING:
This product can expose you to chemicals including Di-n-hexyl Phthalate (DnHP)
which is known to the State of California to cause reproductive harm, and
Vinyl Chloride which is known to the State of California to cause cancer. For
more information go to 
