This is a high-quality Stevenson shield enclosure designed specifically for the uRADMonitor MODEL A3 multi-parameter air quality sensor. It enables reliable outdoor installation by protecting the sensitive internal electronics from rain, snow, direct sunlight, and other weather elements while still allowing excellent airflow for accurate ambient air measurements.
The MODEL A3 ships by default with a rugged aluminum enclosure (not fully rainproof due to necessary air vents), which is ideal for indoor use or sheltered locations but requires extra protection for full outdoor exposure.
Purchase this dedicated Stevenson shield to safeguard your sensor in harsh conditions. It features the classic Stevenson screen design with large vents for optimal ventilation and can be securely mounted using plastic straps, metal clamps, or the built-in holes.
Buying a new MODEL A3? Select the Stevenson shield directly in the Enclosure option on the MODEL A3 page, and we will pre-install the sensor inside the shield. No separate aluminium enclosure will be included or shipped.
This upgrade ensures the best possible protection and measurement performance for long-term outdoor environmental monitoring.

The easy way to Radiation Sensing! This is a compact radiation sensor board of only 37x12mm, fully digital and easy to integrate in any project. Is a complete Geiger-Muller tube driver module with UART communication to a host microcontroller. The module contains an adjustable, regulated, digital high voltage inverter (default set to 380V, max up to 1000V), a digital pulse counter, a precise - crystal based time counter and a serial communication interface. Add radiation sensing functionality to your project in no time, without having to worry about the complicated Geiger Counter electronics. You just get the CPM value on the serial port in seconds. Ideal for drones, robots and compact portable Radiation Dosimeters. A huge variety of Geiger tubes is supported, of various types and voltages. Checkout the datasheet below for the UART communication protocol details and wiring.

The uRADMonitor SMOGGIE-PM is probably world's smallest automated particulate matter sensor, distinguished as winner of AIRPARIF Challenge 2021. This lot of sensors is used, not new, taken from an installation site after only 3 months of use. They still have a lot of life left in them, and they come with a huge 50% discount from the original price and six months of warranty. All used units are cleaned, tested and upgraded to the latest firmware. These sensors measure Particulate Matter (PM1, PM2.5, PM10), Temperature and Humidity.

The novel SMOGGIE-HEAT design adds an intake air port heater, that normalises humidity variations and corrects the PM readings in difficult environments where high humidity and low temperatures can produce water particulates that otherwise would result in false positives. See the datasheet for more technical details. This lot of sensors is used, not new, taken from an installation site after only four months of use, part of the AIRLAB 2023 Challenge where they scored well after being tested in open air conditions. They still have a lot of life left in them, and they come with a huge 50% discount from the original price and six months of warranty. All used units are cleaned, tested and upgraded to the latest firmware. These sensors measure Particulate Matter (PM1, PM2.5, PM10), Temperature and Humidity.

This is a spare part / replacement housing for the uRADMonitor MODEL A4 multi parameter sensor, made out of UV resistant white ASA plastic. The special design protects the sensitive electronics, while offering direct access to the ambient air, for the best measurements. This replacement includes the bottom aluminium lid and the 4 screws. Stevenson housings can be attached with plastic straps or metal collars.

This sensor offers exceptional sensitivity, capable of detecting gases with a resolution as fine as 1 PPB, making it suitable for measuring even trace levels in ambient air. It is designed to host a single, interchangeable electrochemical cell, allowing you to select the gas you need to monitor. Supported gases include H₂S, CO, NO₂, SO₂, and O₃. An additional built-in sensor measures temperature and humidity. The device connects to the internet via Wi-Fi, is powered by a standard 5V micro-USB cable, and provides continuous 24/7 real-time monitoring of toxic gases. This lot of sensors is used, not new, taken from an installation site. All units are cleaned, tested and upgraded to latest firmware and come in brand new enclosures. The electrochemical cell inside is guaranteed to work for at least 1 year.

This is a spare part / replacement housing for the uRADMonitor MODEL A radiation sensor, made out of UV resistant white ASA plastic. The special design protects the sensitive electronics, while offering direct access to the ambient air, for the best measurements. This replacement includes the bottom aluminium lid and the 4 screws. Stevenson housings can be attached with plastic straps or metal collars.
Buying a new MODEL A? Select the Stevenson shield directly in the Enclosure option on the MODEL A page, and the unit ships ready for outdoor use.