X-Sense STH51/STH54 Thermo Hygrometer Review – Accurate Climate Monitoring with Swiss Sensor and WiFi Connectivity

The X-Sense STH51/STH54 Thermo Hygrometer is a WiFi-enabled device for precise and convenient indoor climate monitoring. Featuring high-precision Swiss-made sensors, it delivers temperature accuracy of ±0.36°F (±0.2°C) and humidity accuracy of ±2% RH. The device also has Wi-Fi with an open-air transmission range of 1700ft or 500m, so you can connect it to your home router and monitor your home environment remotely through a smartphone or a web app. Before going any further, one quick thing to clear is that the X-Sense STH51 is the sensor only and doesn’t come with a base station whereas the STH54 product code comes with three sensors and a base station.

The STH51/STH54 has a sleek, modern design that seamlessly fits into any home or office. These devices are compact & lightweight, making them easy to place on a shelf or mount on a wall. The build quality feels well built, with durable materials ensuring longevity.

Operational Features and Functionality

WiFi Connectivity: Among all the features one standout feature is the WiFi connectivity, which allows the devices to sync with the X-Sense Home app, enabling remote monitoring from your smartphone. Whether at home or away from home or office, you can check real-time temperature & humidity levels in your home. The mobile & web app is user-friendly & provides detailed results with history, which is extremely useful for tracking long-term bias. The app is available for both iOS & Android devices, offering easy access to data and settings.

Temperature and Humidity Monitoring: The primary function of this device is to accurately measure and record temperature and humidity levels, to achieve this the sensor module uses advanced sensors to provide accurate or specific readings with very little error. This certifies that the data provided by these thermo-hygrometers is ideal for maintaining indoor conditions; you can rely on it.

24/7 Data Logging and History:  These devices store historical data, allowing you to review how temperature and humidity have changed over time. Analyzing this data helps identify trends and potential issues, enabling informed decisions for optimal environmental control.

Multiple Sensors: The STH51 requires the base station to work (doesn’t work stand-alone), and the option of the STH51 is for those who have already owned an X-Sense Base Station which also works with their Smoke & CO Alarms. With the help of the hub, multiple sensors can access temperature & humidity in different rooms at the same time. For example, you can place one sensor in the living room, another in the kitchen, & another in the bedroom. This way, you get a complete picture of the conditions of the entire house. It is useful for making sure every room is at the right temperature & humidity level, or for checking if there are any issues in specific areas.

Performance: In terms of performance, the sensor nodes can deliver consistent & reliable results. The sensors respond quickly to changes in the environment, and the readings are displayed and logged in the APP. The battery life is outstanding; these devices will last several months on a single one, depending on their usage and settings.

Alert System: To ensure you never miss a critical change in your environment, the X-Sense devices can send alerts and notifications directly to your smartphone. You can customize thresholds for temperature & humidity, receiving instant alerts if the conditions go beyond your set parameters. This feature is really useful for wine cabinets, and greenhouses to keep them in their best condition. It has configurable alerts for high or low temperature and humidity thresholds. (Please note that the X-Sense thermo-hygrometer is set to be used in a temperature range of -20-60°C as shown in the manual). Outside of this range, the measurement results will be somewhat skewed, and it is generally recommended that you do not use it in a refrigerator.

Integration with Smart Home Systems: The X-Sense thermo-hygrometer is compatible with smart home ecosystems, like Amazon Alexa. Google Assistant is not supported at the time of writing this review. This integration allows for voice-activated updates & flawless integration into existing smart home setups. Additionally, you can set up automation routines, such as triggering your HVAC system based on the readings from the sensors.

Android APP

X-Sense STH51/STH54 Thermo Hygrometer Specifications

• Manufacturer: X-Sense
• Model: STH51&STH54 (requires SBS50 Home Safety Hub)
• Power Source: 2 AAA batteries (included)
• Connection: 2.4 GHz Wi-Fi via SBS50 Base Station
• Range: Up to 1,700 ft (500 m) open-air transmission
• Monitoring Features: 24/7 monitoring, historical data storage, CSV data export
• Compatibility: Works with Alexa for voice commands
• Mounting Type: Free hanging, portable with lanyard
• Included Components: 1 STH51&STH54 Thermo-Hygrometer, SBS50 Base Station
• Battery Life: Up to 1 year
• Temperature Range: -4°F to 140°F (-20°C to 60°C)
• Temperature Accuracy: ±0.36°F (±0.2°C)
• Humidity Range: 0% to 100% RH
• Humidity Accuracy: ±2% RH
• Weight: 14 ounces
• Additional Features: Compact design, suitable for various environments including wine cabinets and terrariums
• Dimensions: 6.61 x 4.72 x 3.27 inches

The X-Sense WiFi Thermometer Hygrometer models STH51/STH54 are excellent choices for anyone needing precise and convenient environmental monitoring. The fusion of accurate readings, WiFi connectivity, & smart home integration makes these devices a flexible addition to any home or office. The cost is slightly high for these thermo-hygrometers, but the features & performance make them worth buying, especially for those who want advanced functions and easy use.

The X-Sense STH51/STH54 Thermo Hygrometer can be purchased from the official X-sense store where it will cost you around $15.99 for a single sensor and $49.99 for 3-Pack & 1 Base Station. It’s also available on Amazon where prices are the same.

Please follow and like us: