Many plants are affected by interruptions in dark periods even by extremely dim light. Apogees new Quantum Light Pollution Sensor is designed to detect photons from 340-1040 nm that are below the sensitivity level of a typical quantum sensor. Detecting stray photons that disrupt the night is critical in preventing negative effects in plants such as plant hermaphrodism and stunted growth. The patented, dome-shaped aluminum head is cosine-corrected, self-cleaning, and fully-potted for a waterproof design.
Apogee photometric sensors use a photodetector with a spectral response that closely matches the sensitivity of the human eye to light; sensors include a diffuser to properly weight light incident from any angle. Apogee photometric sensors provide highly accurate illuminance measurements (lux or foot candles) at an affordable price.
The new Apogee PAR-FAR sensor is a research-grade tool for measuring both the traditional PPFD photosynthetic photon flux and separately quantifying the photon flux of far-red photons (700-760 nm). The outputs include the traditional quantum flux, the far-red photon flux, and the far-red fraction (far-red photon flux density / sum of PPFD and far-red photon flux density). This sensor quantifies far-red photons, and for many applications it reduces the need for a more complex measurement with a spectroradiometer.
Apogees NDVI sensors are designed to measure reflectance in red and near infrared wavebands to calculate the normalized difference vegetation index (NDVI). NDVI is a measurement of plant greenness correlated with canopy chlorophyll content and leaf area that is used to monitor green-up in the spring and senescence in the fall.
Accurate measurements of important indoor environmental parameters in one elegant device. Works as a stand-alone operation or integrates into systems for greenhouses, grow rooms, and vertical farms
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The shield accommodates multiple sensor options: air temperature sensors, air temperature/relative humidity probes, or combinations of both categories. For maximum accuracy we recommend redundant measurements of air temperature.
UV-A radiation is important in material sciences and has numerous photo-biological functions that are both harmful and beneficial. Apogees new UV-A radiometers offer a low-cost option for continuously measuring UV-A radiation in outdoor environments, laboratory settings, and monitoring the filtering ability and stability of various materials.
Spectral response estimate of Apogee SU-100 UV sensors. Spectral response measurements were made at 10 nm increments across a wavelength range of 200 to 450 nm in a monochromator with an attached electric light source. Measured spectral data were normalized at 350 nm.
Sensors have an internal thermistor fully sealed for temperature monitoring. Sensors are housed in a polypropylene body for long-term use underground. Two head options include a diffusion head for field use and a flow-through head for laboratory use.
USB quantum sensor can be connected directly to a computer for real time measurements and data logging, or act as a stand-alone datalogger when connected to most standard 5 V DC USB power sources
The new Apogee ePAR (extended photosynthetically active radiation) sensor was created to measure the wider 400-750 nm radiation range that cutting-edge research is showing to be photosynthetically active, beyond the traditional 400-700 nm range defined by McCree. Most of this transformative work to refine and define the ePAR range is being conducted by Dr. Shuyang Zhen and Dr. Bruce Bugbee at Utah State University.
Accurate within �± 1.5 kPa across a pressure range of 15to 115 kPa (4.43 to 34.96 in Hg). Long-term non-stability has been measured continuously indoors and in natural conditions (with sensors mounted inside a data logger enclosure) for multiple sensors and is less than 0.1 % per year. Temperature effects on signal are less than 0.1 %per C across a wide temperature range (-40 to 100 C).
Accurate within �± 1.5 kPa across a pressure range of 15 to 115 kPa (4.43 to 34.96 in Hg). Long-term non-stability has been measured continuously indoors and in natural conditions (with sensors mounted inside a datalogger enclosure) for multiple sensors and is less than 0.5 % per year. Temperature effects on signal are less than 1 % across a wide temperature range (-20 to 50 C).
Apogee Instruments Quantum Sensors are the tool of choice for researchers and agricultural professionals measuring photosynthetically active radiation (PAR) all over the world. Apogee offers two types of quantum sensors: a Full-spectrum Quantum (previously gold) and Original Quantum Sensor. Consult our spectral response graph to decide which model is right for your application.
Apogee Instruments Quantum Sensors are the tool of choice for researchers and agricultural professionals measuring photosynthetically active radiation (PAR) all over the world. Apogee offers two types of quantum sensors: a Full-spectrum Quantum (previously gold) and Original Quantum Sensor. Consult our spectral response graph to decide which model is right for your application.
The SEN-WLP is a Water Level measurement ( optional with Water Temperature) sensor used to monitor the water level / temperature of Ground / Surface water, dams, lakes, pools, aquatic ponds. The sensing device is potted in a stainless steel probe and coated with a sealant to withstand outdoor moisture. It is designed specifically to monitor water level/temperature. This sensor can be connected to data-logger, controller or to some display by means of electronic interface.
The SEN-VH-WLPNV is a Water Level measurement with Water Temperature sensor used to monitor the water level / temperature of Ground / Surface water, dams, lakes, pools, aquatic ponds. The sensing device is potted in a stainless steel probe and coated with a sealant to withstand outdoor moisture. It is designed specifically to monitor water level/temperature. This sensor can be connected to data-logger, controller or to some display by means of electronic interface.
Microwave technology measures the water velocity and water level, according to the built-in soft Piece model and algorithm, convert the flow and cumulative flow of the cross-section. Use 24GHz and 60GHz microwaves for flow rate and water Position measurement, the measurement result is not affected by ambient temperature, air pressure, water The influence of surface water vapor, water pollutants and sediments; its sudden It is characterized by small size and low power consumption, especially suitable for solar energy Power supply and battery pack power supply and other applications with demanding power consumption requirements occasion.
The Model SEN-WD is the electronic wind vane represents the latest technology in wind sensing: a balanced wind direction vane with a near-zero friction bearing and a high accuracy magnetic angle sensor to provide precision wind direction. Unique locking feature allows you to easily set "North" regardless of mounting orientation.
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