Product

Temperature & Humidity Probe

An ultra-high-accuracy probe for measuring temperature and relative humidity. Designed for humid environments and cases where only accurate temperature and humidity measurement is needed — with no unnecessary overhead.

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The probe's sensor head with a protective filter — The sensor head with protective filter

The probe's 4–20mA version integrated inside a radiation shield — 4–20mA version integrated in a radiation shield

Overview

Accurate, simple and reliable measurement

Seymour's temperature & humidity probe is a focused, compact solution that delivers ultra-high-accuracy measurement of temperature and relative humidity. Its design is especially suited to humid environments that demand durability and long-term stability.

When the full sensor array of the Climate Station isn't needed, the probe provides exactly what's required: reliable temperature and humidity data, at lower cost and complexity.

The battery can be charged from a solar panel, and also via a USB-C input — for convenient deployment even in dark places with no direct sunlight.

In addition, a version with a 4–20mA output is available (operating voltage 8–36V DC), and the probe can also be integrated inside a radiation shield.

±0.1°C

Temp accuracy

±1.0%

Humidity accuracy

Ultra-high

Accuracy class

Specifications

Technical details

Parameter	Range	Accuracy
Temperature	−40°C – +125°C	±0.1°C
Relative humidity	0–100% RH	±1.0% RH
Additional version Optional add-on	4–20mA output · operating voltage 8–36V DC
Form factor & installation	Probe for humid environments · can be integrated inside a radiation shield
Power	Solar panel or USB-C charging (for dark locations) · rechargeable battery
Communication	Closed network · cloud upload via the router

Advantages

Why choose the Seymour probe

Ultra-high accuracy

Among the most accurate on the market — ±0.1°C in temperature and ±1.0% in relative humidity — for data you can rely on.

Suited to humid environments

A dedicated probe design that withstands high humidity, with stability and reliability over time.

Simple & compact

When you only need temperature and humidity — a focused solution, at lower cost and complexity.