Best Hygrometers in the UK | 2022 Ultimate Buyer’s Guide

A hygrometer is a tool used to measure water vapor and humidity in the atmosphere. These devices take into account temperature, pressure, mass, and more in order to accurately display the amount of humidity in the air.

These devices are invaluable if one is worried about humidity-related damage to personal belongings such as paintings and pianos. Areas with high humidity such as saunas and other water-based locations must watch humidity levels in order to keep mildew at bay.

What Are the Different Types of Hygrometer?

There are several types of hygrometers that operate in different ways to record and display the humidity level.

• Dew point hygrometers measure moisture in gas and are the most precise, especially when only a small amount of moisture needs to be measured.

• Another type of hygrometer providing highly precise measurements is a gravimetric hygrometer that gauges the mass of an air sample and identifies the humidity levels by comparing it to the same amount of dry air.

• Hair-tension hygrometers use hair or another elastic material that is held under pressure. The trick is that the length of a hair increases when it is wet and decreases when it is dry.

• Psychrometers use a dry bulb and a wet bulb in two thermometers. When there is evaporation on the wet bulb, the temperature falls as compared to the dry bulb.

• A thermal hygrometer detects any changes in the air’s thermal conductivity which occurs when the humidity level changes.

• In optical hygrometers, the air is located between a light emitter and a light detector. The device works by measuring the absorption of light by water in the air.

However, the most convenient type of hygrometer is an electronic one that typically uses either capacitance or resistance to measure moisture in the air. Capacitive hygrometers are equipped with two metal plates while resistive electrical hygrometers contain a ceramic substance, through which electricity passes. Modern electronic hygrometers offer Wi-Fi connectivity and come with downloadable applications allowing the user to monitor all metrics remotely.

Electronic Hygrometers Compared 

Electronic hygrometers are available with and without a digital display. For example, the Ubibot GS1-A Wireless Temperature Humidity Sensor has a large screen that displays all the statistics.

The data is clearly readable under various lighting conditions and the build quality of the entire unit is excellent. You can quickly set up and access the data through the Ubibot App. Ideal for greenhouses and laboratories, this device is suitable for temperature conditions ranging from - 20ºC to +60ºC and has an IP65 waterproof rating. Its sensor chips are made in Switzerland and are highly accurate. With the app, you can monitor humidity levels remotely, track history and receive alerts that can be sent to a number of users. The added benefit is free 200MB cloud storage.

The advantage of the SensorPush HT.w Wireless Thermometer/Hygrometer is high precision. The device delivers an accuracy of ±2%RH, ±0.2°C.

Assembled in the USA, this hygrometer contains top-quality Swiss-made sensing components. There is no built-in screen but you can use the app which is compatible with both iOS and Android. In order to receive alerts, you will need to buy separately a SensorPush G1 WiFi Gateway. This tiny 23-gram unit does the job well and has a great range of 325 feet.

SensorPush wireless hygrometer works with Bluetooth technology and an intuitive app in order to deliver humidity level readings right to your smartphone where they are most useful.

SensorPush Wireless Thermometer/Hygrometer for iPhone/Android

What Does It Measure?

This hygrometer measures both temperature and humidity in order to deliver the most accurate readings and pertinent information to its users. Measuring humidity levels from 0 to 100 percent as well as temperatures from negative 40 degrees Fahrenheit to 140 degrees Fahrenheit, this hygrometer can withstand extreme humidity and temperature conditions.

Highly Accurate and Intuitive

The margin of error for this hygrometer is extremely slight, as it is accurate within roughly one degree either way. What’s more, the app associated with the device works on both iPhone and Android devices.

Holding the sensor against the screen will allow the user to accurately assess the level of humidity in the air easily.

Users are also able to set the device to work automatically. Given the parameters you set for the device, your phone’s app will alert you when humidity or temperature levels exceed or drop below the amounts you have specified, making them one less thing you have to worry about.

Features:

• 1.57” x 1.57” x 0.65”
• CR2477 battery
• 30-day warranty

If you need a gadget that displays not only the temperature, humidity, atmospheric pressure, but also the wind direction and speed or solar radiation — read our Buyer’s Guide Best Home Weather Stations.

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