The TBQ-2L Total Solar Radiation Sensor (Class B) specializes in measuring the total radiation (shortwave) received on a horizontal plane, which includes direct solar radiation and scattered radiation. This device is specifically designed for solar resource assessment, environmental monitoring, and climate research, offering comprehensive and accurate measurement capabilities to provide users with detailed solar resource data. Its high-precision and high-stability measurement performance, coupled with its simplicity and ease of maintenance, make it an ideal choice for outdoor environments such as meteorological stations, agricultural test fields, and solar power stations.

PRODUCT FEATURES
1. According to ISO9060 and WMO technical indicators, it meets the class B standard.
2. The adoption of high-precision thermopile semiconductor processing technology ensures higher, more stable, and more accurate overall batch performance and measurement precision.
3. The high-quality 1mm protective cover and fully enclosed design can prevent the impact of external environment.
4. Fast response speed, low internal resistance, and quick reaction speed ensure accurate data.
5. Data calibration can be performed around the clock, including on sunny, cloudy, and overcast days, ensuring more accurate data.
6. High-precision horizontal bubble processing for fine anchor screws, with point-like grounding for more precise horizontal adjustment.
SPECIFICATIONS
ISO/WMO technical indicators | TBQ-2L |
Classify according to meteorological standards | National standard level 1 table |
Response time (95% response) | 10s |
Zero point bias | |
Corresponding to 200W/m² net heat radiation (ventilation) | <10 W/m² |
Corresponding to the response of environmental temperature change 5K/h | <4W/m² |
Stability (change/year, percentage of full capacity) | ±2% |
Nonlinear | ±1%(100~1000 W/m²) |
Directional response | ±20 W/m² |
emperature response | <4%(-10~40℃) |
Tilt response | <1% |
Sensitivity range | 7-14μV/(W/m²) |
Working temperature | -40~+80℃ |
Internal resistance | <50Ω |
Standard cable length | 3m |
Measuring range | 0~2000 W/m² |
Cable replacement | The user can remove and install the cable |
Spectral coverage | 280~3000 nm(50 per cent penetration) |
Read requirements | A differential voltage channel or a single-ended voltage channel |
Horizontal alignment | It includes a level bubble and an adjustable foot |
Uncertainty of solar radiation dose | ±2% |
Weight (excluding cable) | 0.8kg |
Calibration traceability | To trace WRR, follow ISO9847 |
Suggest calibration cycle | Biennial |
>output signal | 0~20mV、RS485、4~20mA |
PRODUCT DIMENSION DRAWING


PRODUCT APPLICATION
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