Home › Products › Sensors › Atmospheric
Sensors
Atmospheric Sensors
The sensors that turn a rain station into a weather station: relative humidity and air temperature in a naturally aspirated radiation shield, solid-state barometric pressure, and calibrated solar radiation. Each connects to 50386 and 50388 transmitters through a standard 0–5 Vdc analog input.
Humidity & temperature 2048RH/T 2046T
The 2048RH/T combines relative humidity and air temperature in a single probe, using microprocessor linearization across the full measurement range and an advanced humidity element with exceptional resistance to contaminants. The 2046T is the temperature-only version, using an integrated-circuit transducer with a linear output proportional to absolute temperature. Both mount in the 4550 shield and include 25 ft of cable with MS connector. Datasheet (PDF) →
Solar radiation shield 4550
A four-plate, naturally aspirated shield that protects air temperature and RH sensors from overheating in direct sun. U-clamp mounts to any pipe up to 1 inch, with a 7-inch mounting arm and set-screw sensor retention. Included with every 2048RH/T and 2046T. Datasheet (PDF) →
2048RH/T
- RH range
- 0–100 %RH
- RH accuracy
- ±1.5 %RH @ 23 °C
- Temp range
- -40 to +60 °C
- Temp accuracy
- ±0.6 °F
- Output
- 0–5 Vdc
- Power
- 12 Vdc, <4 mA
2046T
- Range
- -62 to +80 °C
- Accuracy
- ±1 °F
- Output
- 0–5 Vdc
- Power
- 12 Vdc, <20 mA
- Size
- 2.5 × 0.38 in.
- Cable
- 25 ft w/ MS connector
Barometric pressure 1522
Solid-state pressure measurement with excellent repeatability and temperature compensation, housed in a NEMA-4X enclosure. The standard 100 mb span is set to your site elevation (-988 to 11,775 ft MSL) so the output reads as MSL-equivalent pressure; a 600 mb span (500–1100 mb) is available. Microprocessor signal conditioning is user-configurable over RS-232, and 2.8 mA drain suits remote sites. Specify site elevation at order. Datasheet (PDF) →
1522
- Span
- 100 mb std, 600 mb opt
- Accuracy
- 0.05% of range
- Output
- 0–5 Vdc
- Power
- 12 Vdc, 2.8 mA
- Temp
- -50 to +60 °C
- Cable
- 15 ft w/ MS connector
Solar radiation 4015
A silicon photovoltaic pyranometer measuring total sun-and-sky radiation from 0 to 1400 W/m², responding to a 100% change within one millisecond. Each sensor ships with a calibration certificate — calibrated against thermopile radiometers in bright sunshine with cosine and air-mass corrections — under a desiccant-sealed Pyrex dome. Used in the 5381/A2 and 5881/A2 weather stations and standalone installs for ET calculation, fire weather, snowmelt energy balance and climate research. Datasheet (PDF) →
4015
- Range
- 0–1400 W/m²
- Output
- 0–5 Vdc
- Accuracy
- ±5%
- Spectral response
- 0.35–1.15 µm
- Response
- <1 ms full scale
- Cable
- 25 ft w/ MS connector
Ordering information
| Order | Description |
|---|---|
| 2048RH/T | Relative Humidity and Temperature Sensor — includes 25 ft cable with MS connector and 4550 Solar Radiation Shield |
| 2046T | Temperature Sensor — includes signal conditioning, 25 ft cable with MS connector and 4550 Solar Radiation Shield |
| 4550 | Solar Radiation Shield |
| 2048C | Additional signal cable, per foot |
| 1522 | Barometric Pressure Sensor — includes 15 ft cable and MS connector; specify site elevation |
| 1522C | Additional cable, per foot |
| 4015 | Solar Radiation Sensor |
| 4015MB | Mounting bracket (ordered separately) |
| 4015C | Additional cable, per foot |
| 4015SC | Replacement Signal Conditioning Card |