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Tipping bucket rain gauge, rainwater enters the water receiver from the water receiving port, falls into the water receiving funnel, and flows into the tipping bucket through the funnel mouth. When the accumulated water reaches a certain height (such as 0.01 mm), the tipping bucket loses balance and overturns. And every time the tipping bucket tips over, the switch connects the circuit and sends a pulse signal to the recorder. The recorder controls the self-recording pen to record the rainfall, and so on. The rainfall is measured by recording the number of pulses.

Radar rain gauge, using flat radar module, uses 24GHz Doppler radar wave technology to measure the falling speed of water droplets during rainfall, and distinguishes the type of rain, snow and hail, as well as the intensity of rainfall according to the droplet size and falling speed. Radar rainfall detection is more sensitive than mechanical rainfall detection methods, and can detect the start and end time of rainfall more quickly.

Piezoelectric rain gauge uses piezoelectric sensor module to measure the intensity of rainfall based on the voltage effect generated by the impact of raindrops on the piezoelectric module. The piezoelectric effect is used to convert mechanical displacement into electrical signals, and the amount of rainfall is obtained based on the change in voltage waveform converted from the energy of raindrop impact, thereby realizing the measurement of the weight of a single raindrop and then calculating the rainfall. Piezoelectric rain gauge has no mechanical accessories, so it is more durable, sensitive and reliable than rain gauges of other technologies, maintenance-free, and does not require on-site calibration.

Road condition sensor, based on multispectral remote sensing technology, non-contact real-time monitoring of road ice, snow and water thickness. Remote sensing technology, no need to close the road or cut the road surface during installation, installation work is safe and convenient. Low maintenance, it is an ideal choice for road weather monitoring. The sensor is installed in an all-weather, durable housing to ensure accurate data even in adverse weather conditions.

Weighing evaporation sensor (pressure evaporation sensor) uses high-precision weighing principle to measure the weight of the liquid in the evaporating dish, and then calculates the liquid level. It can be used in a variety of environments, such as liquid or ice. The weighing evaporation water level sensor solves the drawbacks of using the ultrasonic principle to measure the liquid level (such as inaccurate measurement when iced, easy damage to the sensor when there is no water, etc.).

The rain and snow sensor is based on the principle of liquid conductivity. It uses electrodes to detect whether there is water. It is used for qualitative measurement of whether it is raining or snowing outdoors. The rain and snow sensor can be used directly for monitoring in rainy climates; when snowing occurs, the sensor will be heated to 40°C to melt the snow into water for monitoring.

The illuminance sensor is composed of a special light sensor core, an optical material window, and an aluminum alloy shell. It has the characteristics of solid structure, good sealing, long service life, high measurement accuracy, good stability, long transmission distance, and strong resistance to external interference. The digital sensor also has an automatic range conversion function. The sensor is suitable for all kinds of indoor and outdoor light intensity measurements.

The illuminance sensor has the characteristics of long service life, high measurement accuracy and good stability. It can be widely used in various indoor and outdoor light intensity measurements such as environment, greenhouse, laboratory, breeding, construction, high-end buildings, industrial plants, etc.

Photosynthetically active radiation sensor/photon sensor, using optical material window, based on the principle of photoelectric induction, measures photosynthetically active radiation in the spectral range of 400~700nm, aluminum alloy shell. It has the characteristics of solid structure, good sealing, long service life, high measurement accuracy, good stability, long transmission distance, strong anti-interference ability, etc., in line with the WMO World Meteorological Organization specifications (CIMO Guide). It can be widely used in various occasions such as indoor and outdoor where photosynthetically active radiation measurement is required.

The Light quantum sensor uses a silicon photoelectron probe to accurately measure the photon flux density (PPFD) of natural or artificial light. It is especially suitable for measuring PAR in plant growth rooms and greenhouses, and can effectively monitor greenhouse lighting conditions.

UV Radiation Intensity / UV-Index Sensor, composed of a dedicated ultraviolet sensing core, an optical quartz window, and an aluminum alloy shell. Based on the principle that photosensitive elements convert ultraviolet rays into measurable electrical signals, it uses a highly sensitive ultraviolet measuring device for 280-400nm to accurately measure the intensity of ultraviolet rays. It is composed of an aluminum alloy shell. It has the characteristics of strong structure, good sealing, long service life, high measurement accuracy, good stability, long transmission distance, and strong resistance to external interference. It can be widely used in various occasions such as indoor and outdoor where ultraviolet measurement is required.

The sunshine duration sensor is used to continuously measure sunshine time. The instrument itself has no moving parts and does not require power supply, and is capable of long-term observation in the field. It uses three specially designed photodiodes to perform observations and calculations when there is sunlight (direct radiation intensity>120W·m-2). The sunshine duration sensor consists of a sensor core, an optical material window, an aluminum alloy shell, and a waterproof aviation plug; it has the characteristics of a sturdy structure, good sealing, long service life, high measurement accuracy, good stability, long transmission distance, and strong resistance to external interference.