The SI-4H1-SS is a premium infrared radiometer sensor engineered for accurate measurement of infrared radiation with a horizontal field of view. Designed for research-grade applications, it features SDI-12 digital output for easy integration with data loggers and monitoring systems. Constructed from durable stainless steel, this sensor is built to withstand various environmental conditions. Ideal for use in ecology, meteorology, and agricultural research, the SI-4H1-SS delivers reliable performance and precision for critical infrared measurements. Enhance your research with this essential tool.

The SI-421-SS infrared radiometer sensor is designed for precise measurement of infrared radiation with a narrow field of view, making it ideal for targeted research applications. This research-grade sensor includes SDI-12 digital output for easy integration with data loggers, ensuring efficient data collection and management. Constructed from durable stainless steel, it is built to endure challenging environmental conditions. Perfect for use in ecology, meteorology, and agricultural studies, the SI-421-SS delivers reliability and accuracy for all your infrared measurement needs. Elevate your research capabilities with this essential instrument.

The SI-411-SS is a high-performance infrared radiometer sensor designed for precise measurement of infrared radiation. Featuring a standard field of view and SDI-12 digital output, this research-grade instrument ensures seamless integration with data loggers for efficient data collection. Its durable stainless steel construction makes it ideal for diverse environmental conditions. Perfect for scientific research in ecology, meteorology, and agriculture, the SI-411-SS is a reliable tool for accurate infrared measurements. Enhance your research capabilities with this essential sensor.

The SQ-640 Quantum Light Pollution sensor is a self-powered device designed for durability. It features a robust aluminum housing that is fully submersible and built to endure harsh conditions, along with a high-quality cable. The sensor cable is equipped with an IP68 marine-grade stainless-steel connector, facilitating straightforward removal and replacement for maintenance and calibration of permanent installations. Typical applications for Quantum Light Pollution sensors include measuring incoming PFD over plant canopies in indoor greenhouses or growth chambers, as well as reflected or under-canopy (transmitted) PFD measurements in those settings. Given that this Quantum Light Pollution sensor's detector is sensitive to radiation wavelengths up to 1100 nm, which exceed the range that affects plants, we recommend using the SQ-640 sensors solely in indoor growing environments with LED lights.

This ePAR sensor, is an advanced upgrade to Apogee's ePFD sensor, designed to measure the newly defined ePAR radiation range of 400-750 nm, which research indicates is photosynthetically active, extending beyond the conventional 400-700 nm range. The SQ-617 ePAR is a digital sensor utilizing the SDI-12 communication protocol. It features a durable aluminum housing that is fully submersible and built to endure harsh conditions, along with a high-quality cable. The sensor cable also includes an IP68 marine-grade stainless-steel connector for simplified removal and replacement during maintenance and calibration of permanent installations. Typical applications for ePAR sensors involve measuring total ePAR intensity above plant canopies in various growing environments, monitoring and optimizing grow lights, and conducting research on plant morphogenic activity and photobiology. Many next-generation LED fixtures, sunlight, and other light sources emit these newly validated far-red photosynthetic wavelengths, which have not been measurable by traditional 400-700 nm PAR meters until now.

The SQ-521 is a digital sensor with SDI-12 communication protocol. The sensor incorporates a rugged, self-cleaning sensor housing design, anodized aluminum body with acrylic diffuser, and high-quality cable terminating in pre-tinned pigtail leads for easy connection to dataloggers and controllers. Typical applications include PPFD measurement over plant canopies in outdoor environments, greenhouses, and growth chambers, and reflected or under-canopy (transmitted) PPFD measurements in the same environments. Quantum sensors are also used to measure PAR/PPFD in aquatic environments, including salt water aquariums where corals are grown.

The TS-100-SS is a high-quality aspirated radiation shield designed to protect scientific sensors from solar radiation and ensure accurate temperature readings. This stainless steel shield operates on 12 V power and features a robust construction, suitable for various environmental conditions. Its aspirated design promotes enhanced airflow, minimizing heat buildup and providing reliable performance. Ideal for applications in meteorology and environmental monitoring, the TS-100-SS is an essential accessory for maintaining the integrity of your radiometric measurements. Invest in precision with this durable radiation shield.

The SDI-12 Quantum Sensor is calibrated for sunlight and includes a command that automatically applies the immersion effect correction factor for underwater measurements. This sensor features a robust, self-cleaning housing and a high-quality cable. Typical applications encompass measuring PPFD (Photosynthetic Photon Flux Density) above plant canopies in outdoor settings, greenhouses, and growth chambers, as well as capturing reflected or transmitted PPFD in those environments. Additionally, quantum sensors are employed to assess PAR (Photosynthetically Active Radiation)/PPFD in aquatic environments, such as saltwater aquariums where corals thrive.

The SP-421-SS, SDI-12 Digital Output Silicon Cell Pyranometer by Apogee Instruments is a high-performance solar radiation sensor designed for accurate and reliable measurement of solar irradiance. Featuring durable stainless-steel construction, this pyranometer provides digital output for easy integration with data loggers and systems. Its precision silicon cell ensures consistent performance in various environmental conditions, making it ideal for research, precision agriculture, and solar energy applications. Enhance your solar studies with this dependable and user-friendly instrument.

Introducing the Apogee Instruments SP-215 SS Amplified Pyranometer, a precision instrument designed for accurate solar radiation measurement. This robust sensor features a 0-5 volt output, allowing for easy integration with data loggers and control systems. Ideal for environmental research, agriculture, and solar energy applications, the SP-215 provides reliable, high-quality readings in various conditions. With its stainless steel construction and reliable performance, this pyranometer is built to withstand the elements while delivering the data you need to make informed decisions. Elevate your solar monitoring capabilities with the Apogee SP-215.

The AT-001-SS is a high-performance replacement fan designed specifically for use with Apogee aspirated radiation shields. This durable fan ensures optimal airflow, enhancing the accuracy of temperature and radiation measurements by preventing heat buildup. Featuring a robust stainless steel construction, it is built to withstand various environmental conditions. Easy to install, the AT-001-SS is an essential component for maintaining the efficiency and integrity of your aspirated shield. Keep your measurements precise with this reliable replacement fan.

The mounting bracket with leveling plate is designed to mount Apogee Instruments' pyranometers, pyrgeometers, quantum sensors, red—far-red sensors, PAR-FAR sensors, and ultraviolet sensors to a mast or pipe with an outer diameter of 396mm - 640mm (1.3" - 2.1").
Proper sensor installation requires that the sensor be as level as possible for most applications. The bracket contains a leveling plate with an integrated bubble-level to make leveling simple and accurate, which ensures correct sensor deployment.
All products are designed and built at our headquarters in Logan, Utah, USA. Apogee Instruments has been creating research-grade instruments for scientists and serious growers for over 25 years. All products are supported by our world-class, US-based customer support team.

The AM-250 is a robust mounting bracket designed for secure installation of infrared radiometers in commercial applications. Engineered for durability, this adjustable bracket allows for precise angle positioning to optimize measurement accuracy. Constructed from high-quality materials, the AM-250 is suitable for both indoor and outdoor environments. Simplify your setup and enhance the performance of your infrared radiometer with this reliable and easy-to-install mounting solution.