Part Number - RS3

Solar Radiation Shield


Use the RS3-B Solar Radiation Shield to protect your external sensors from sunlight and rain

Product upgrade options


Solar Radiation Shield

$75.00 USD
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Use the RS3-B Solar Radiation Shield to protect your external sensors from sunlight and rain. This shield ensures users gain more accurate measurements, due to increased airflow around sensors. And users benefit from 2.5 times faster response time to changing conditions.

The RS3-B Solar Radiation Shield works with most of Onset's external temperature and temperature/relative humidity, including those for our award-winning HOBO Weather Station products.

For customers interested in deploying a radiation shield with Onset data logger such as a HOBO Pendant or U-Series data logger, Onset also offers two other models of solar radiation shields; the RS1 and the pre-assembled M-RSA



Time response: 2.5 times faster than the RS1 and M-RSA
Wind resistance: Tested in sustained winds up to 129 kph (80 mph), Tested in gusts up to 161 kph (100 mph)

Shield: ASA styrene (UV-stable)
Bracket: Glass-filled nylon (UV-stable)
Mounting hardware: Stainless steel and brass

Temperature: -40° to 75°C (-40° to 167°F)
Weight: 113 g (4 oz)
Height: 89 mm (3.5 inches); 159 mm (6.25 inches) with bracket
Diameter: 102 mm (4 inches); bracket protrudes an additional 51 mm (2 inches) from shield
Mounting: Up to 51 mm (2 inches) mast diameter with hose clamp; unlimited with screws
Compatible sensors: Onset part numbers S-THB-M00X, S-TMA-M0XX, S-TMB-M0XX, TMCx-HB, TMCx-HD, W-TMB, and external sensors from U23-00X; NOT compatible with S-THA

Note: This shield does not protect sensors from light reflected from below the shield at some angles. For deployments over reflective surfaces, consider using Onset’s RS1 or M-RSA Solar Radiation Shields.

Compatible items

USB Data Loggers - requires external sensor(s)

$430.00 USD

Web-based Monitoring Systems - via remote communication

USB Data Loggers - w/external sensor(s)

$240.00 USD
$180.00 USD
$1770.00 USD

Data Logger(s)


$350.00 USD
$250.00 USD


Solar Radiation Shield (RS3) Installation Guide

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