Overview
SHT-30 Mesh-Protected Weatherproof Temperature/Humidity Sensor is built for outdoor monitoring projects where you need reliable ambient readings without leaving the sensing element exposed. It uses a Sensirion SHT-30 digital sensor housed inside a sintered metal mesh enclosure that helps block water ingress while still allowing air to circulate for humidity measurement.
This makes it a practical choice for exterior weather stations, environmental logging, greenhouse monitoring, and other maker or IoT projects that need temperature and humidity sensing in real-world conditions. The sensor body is weatherproof and can tolerate temporary submersion, but it is best used for outdoor exposure rather than long-term underwater operation.
Important: if the sensor is submerged, it will only provide temperature readings. Long-term submersion of more than 1 hour at a time is not recommended. Since it uses a true I2C interface, any existing SHT-3x microcontroller library should work with it.
Specification
Technical details for SHT-30 Mesh-Protected Weatherproof Temperature/Humidity Sensor.
| Specification | Details |
|---|---|
| Sensor type | Sensirion SHT-30 temperature and humidity sensor |
| Interface | True I2C digital interface |
| Humidity accuracy | ±2% RH |
| Temperature accuracy | ±0.5°C |
| Supply voltage | 3-5V DC |
| Sensor body dimensions | 14mm diameter, 50mm long |
| Cable length | Approx. 1 meter |
| Enclosure | Sintered metal mesh, weatherproof design |
| Usage note | Suitable for outdoor weather sensing; avoid submersion for over 1 hour |
Pinout
| Wire | Type | Description |
|---|---|---|
| Brown/Red | Power | VCC input, 3-5V DC |
| Black | Power | Ground |
| Yellow | I2C | Clock line (SCL) |
| Green/Blue | I2C | Data line (SDA) |
Note: some units may have the data and clock wires swapped. If communication does not work at first, try interchanging SDA and SCL.
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