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Wireless temperature and humidity sensors

Measure and monitor the ambient thermal conditions in each room or zone

Accurate & reliable temperature & humidity monitoring

Our wireless multi-sensors measure the ambient temperature and relative humidity in each room, cabinet or zone. 

The small, solar-powered sensors use ultra-low-power wireless technology, making them easy to install and very low maintenance. Now with battery back-up for low-light environments.

Product Features & Specifications

Features
  • Measures temperature and relative humidity
  • Small, discreet sensors simply stick to the wall or cabinet
  • Reports if the temperature changes by more than 0.5°C or humidity changes by more than 2%, otherwise updates every 15 minutes
  • No recurring fees. Access the data through your chosen platform, without any additional costs from Pressac
  • Manufactured in the UK to high-quality and high-safety specifications, they are subject to rigorous testing procedures
Range
  • Temperature: 0-40ºC (± 0.5ºC between 17-27°C otherwise ± 1°C)
  • Humidity: 0-100% RH (± 5% between 30-70%)
Wireless communication
  • Transmit data wirelessly and securely – using AES-128 encryption – via EnOcean wireless protocol, which uses internationally approved, licence-free ISM bands
    • 868 MHz for Europe (RED)
    • 902 MHz for North America (FCC) and Canada (IC)
    • 928 MHz for Japan (ARIB specification)
  • EnOcean Equipment Profile (EEP): A5-04-01
  • Transmit up to 30 metres in buildings and 300 metres in free field
Power
  • Solar-powered using ambient room light – optimally angled to absorb light – with a battery back-up for periodic low-light conditions.
  • Batteries typically last up to 10 years
Dimensions
  • 76.5 x 28 x 17.5 mm (approx)

Want to buy temperature and humidity sensors for your smart project?

Looking to order over 50 sensors or have regular requirements for sensors?

Precise Temperature & Humidity Tracking for Smarter Environments

Accurate & reliable climate updates

The sensor sends instant updates if the temperature changes by more than 0.5°C or humidity changes by more than 2%.

Low maintenance with zero cables

The sensors use ambient room light – natural or lighting – with a battery back-up, making them super easy to install and very low maintenance.

Real-time local or cloud data

Data can be sent securely to a local network or the cloud — via Ethernet, LTE (4G) or WiFi through an MQTT broker or ready connections to AWS and Microsoft Azure. No subscriptions or recurring fees.

Temperature & Humidity Sensor FAQs

Why should I monitor temperature and humidity?

Monitoring temperature and humidity helps maintain comfortable and healthy indoor environments, ensures HVAC systems perform efficiently, and supports compliance in sectors such as healthcare, manufacturing, and data centres.

What are the benefits of monitoring temperature and humidity together?

Tracking both factors provides a more complete view of indoor air quality. For example, temperature affects comfort while humidity influences health, equipment performance, and energy efficiency. Monitoring both together allows for better decision-making and control.

What do your temperature and humidity sensors do?

Our sensors measure and transmit real-time data on indoor temperature and relative humidity, helping you optimise building management, energy use, and occupant comfort.

How accurate are your temperature and humidity sensors?

Our sensors measure temperature with an accuracy of ±0.5 °C (between 17–27 °C) and ±1 °C outside that range. Relative humidity is accurate to ±5 %RH between 30–70 %RH at 0–40 °C.

What is the measurement range of your sensors?
  • Temperature: 0 °C to 40 °C
  • Humidity: 0 %RH to 100 %RH
How are your sensors powered?

Our sensors are solar-powered using ambient light, with certain models including a long-life backup battery that can last up to 10 years.

Do your sensors require maintenance?

Maintenance for our temperature and humidity sensors is minimal. Battery-backup versions may need replacement after several years, but our sensors are factory-calibrated and do not require routine recalibration.

How do your sensors transmit data?

Our sensors use the EnOcean wireless protocol, making them compatible with a wide range of building systems, IoT platforms, and cloud services.

Is data transmission from your sensors secure?

Yes. When in secure mode, communication is encrypted using AES-128. Standard mode transmits without encryption for broader compatibility.

What are the transmission intervals of your sensors?

Our sensors transmit data when the temperature changes by more than 0.5 °C or humidity by more than 2 %. If no significant changes occur, updates are sent approximately every 15 minutes.

Where should your sensors be installed?

These sensors should be installed indoors in a location that represents the room’s conditions, away from direct sunlight, heaters, or air vents. Ensure there is enough ambient light for solar-powered models.

Can your sensors integrate with different systems?

Yes. Our data is system-agnostic and can be integrated into building management systems, dashboards, and IoT/cloud platforms such as Microsoft Azure or AWS.

How do our CO2, temperature & humidity sensors work?

Our technology is system agnostic, the data from our sensors can be used in any way you need. There are different options to choose from, making it easy to get your data in the way that’s right for you.

Why Choose Pressac Temperature & Humidity Sensors?

Our wireless temperature and humidity sensors provide accurate, real-time insights into indoor conditions. Trusted by businesses, schools, and commercial organisations, they make it simple to monitor environments, improve comfort, and optimise building performance.

Accurate Temperature and Humidity Monitoring

Our sensors continuously measure indoor temperature and relative humidity, giving you reliable, real-time data to manage air quality, occupant comfort, and energy efficiency. By monitoring both factors together, you gain a clear picture of indoor conditions to support wellbeing and compliance.

Quick and Wireless Installation

Compact and discreet, our wireless temperature and humidity sensors can be easily wall-mounted using the supplied backplate. Data is transmitted wirelessly over the EnOcean protocol, making installation fast and scalable without the need for extra cabling.

Low-Energy, Low-Maintenance Design

Engineered with ultra-low power technology, our sensors deliver long-lasting performance. Solar-powered options with backup batteries reduce the need for frequent replacements, cutting maintenance costs and downtime while ensuring reliable operation.

Secure Data Transmission & Easy Integration

Your data stays under your control. Sensor readings are transmitted securely using the EnOcean wireless protocol and can be integrated into your chosen building management or IoT platform via a Pressac gateway. With support for MQTT, Azure IoT Hub, AWS IoT Core and more, our wireless temperature and humidity sensors give you flexible, future-proof integration with no hidden costs or vendor lock-in.

Contact the Pressac Team

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