Hardware-Free Radiation Shield for Environmental Monitoring

Radiation Shield for a temp and humidity sensor.  The bottom is modeled to fit the FS400-SHT 31 Sensor Probe https://a.co/d/4XhEAoh

Print Info:

• Material: PETG for outdoor use
• Layer Height: 0.2 mm 
• Walls: 2
• Infill: 25% gyroid
• Supports: None required
• Orientation: Lay flat
• Nozzle Size: 0.4 mm
• Filament Usage: ~150 g

Print:

• Top 1x
• Fin 5x
• Bottom 1x
• Mount 1x 
• Nut 3x

You can find a mount for a EMT tube .75in and 1in and a mount to screw onto a 2x4. There is a button that is made specifically for the FS400-SHT 31 Sensor. There is another bottom that with a larger opening for people to make there own sensor holders.  The video shows how to assemble the shield. To mount the sensor into the bottom, We use a M4 screw.  You can 3D print a M4 screw and it will work fine. 

Why do you need a Radiation Shield?

A shield is needed for a temperature and humidity sensor to protect it from direct sunlight, rain, and other environmental factors that could significantly affect its readings, ensuring accurate measurements of the ambient temperature and humidity levels by preventing the sensor from getting too hot or wet; essentially, a shield allows the sensor to accurately measure the air temperature rather than the temperature of its surroundings. 

Key points about using a shield for a temperature and humidity sensor:

Accurate readings:

The primary function of a shield is to maintain consistent conditions around the sensor, preventing drastic temperature fluctuations caused by direct sunlight or precipitation, leading to more precise data collection. 

Sensor longevity:

Protecting the sensor from harsh elements like rain and extreme temperatures can extend its lifespan. 

Radiation protection:

Shields are often designed to block solar radiation, which can significantly impact temperature readings, especially during the day. 

Ventilation design:

Most shields have a ventilated structure to allow air to circulate around the sensor, ensuring it measures the true ambient temperature.