Infrared Radiometers

High accuracy, non-contact surface temperature measurement in harsh environmental conditions.

Beeservices  Instruments’ infrared radiometers are used for plant canopy temperature measurement, road surface temperature measurement, energy balance studies, and more.

Accurate Measurements

Calibrated to a custom black-body cone with a measurement uncertainty of ± 0.2 C from -30 to 65 C when the sensor (detector) temperature is within 20 C of the surface (target) being measured. Radiometers are only sensitive from 8 to 14 µm (atmospheric window) to minimize the influence of water vapor and CO2 on the measurement.

Field of View

Four field of view (FOV) options, including: three circular and one horizontal aperture. Custom FOVs available upon request.


Plant canopy temperature measurement for use in plant water status estimation, phenotyping, phenomics, road surface temperature measurementfor determination of icing conditions, and terrestrial surface (soil, vegetation, water, snow) temperature measurement in energy balance studies.

Output Options

Analog and digital output options are available. Analog versions include un-amplified voltage outputs. Digital versions include SDI-12 communication protocols. Sensor is also available attached to a hand-held meter with digital readout.

Field of View Options


The AM-220 mounting bracket is designed to orient sensors at varying angles to satisfy all applications. Bracket can be mounted to a mast or pipe, while accommodating the sensor.

Rugged Housing

Anodized aluminum body with fully-potted electronics. The outer radiation shield reduces thermal fluctuations.

High Quality Cable

Pigtail-lead sensors feature an IP68, marine-grade stainless-steel cable connector approximately 30 cm from the head to simplify sensor removal for maintenance and recalibration. Cable is shielded, twisted-pair wire with a TPR jacket for high water resistance, UV stability, and flexibility in cold conditions.

Warranty and Support

All Beeservices products are backed by an industry-leading four year warranty and outstanding customer support.