Name: TCAV Soil Average Temperature Sensor
Brand: Beijing Bolun Jingwei Technology Development Co., Ltd
Availability: InStock

Room 713, Unit 1, Building 3, the Pearl River Moore International Building, No. 1, Beiqing Road, Changping District, Beijing

Campbell's TCAV soil heat flux probe uses an E-type (nickel chromium alloy constantan) thermocouple probe to measure the average soil temperature within 6-8 cm below the soil surface. Each set of probes has four parallel probes, each used to measure temperature at different depths.
E-type thermocouple probe
Can measure the average temperature of a small area of soil in both vertical and horizontal directions
2x2 thermocouple configuration (4 contacts in total)
Usually used in conjunction with soil heat flux plates
Measurement range:- 270-+1000℃
Typical output: 60 μ V/℃
Weight: 0.45kg (including 15.24m cable)The Hukseflux HFP01 heat flux sensor can be used to measure the heat flux inside soil, walls, or other buildings. It has been widely used worldwide, especially for energy balance research and Bowen ratio systems. The sensor housing is made of ceramic plastic material and contains a thermoelectric stack. The sensor generates a voltage signal by sensing the temperature difference between the top and bottom of the heat flux plate, and measures the heat flux by combining it with the thermal conductivity of the medium. HFP01 is easy to use and only requires a precise millivolt voltmeter.
HFP01SC has a heating coating and self calibration function. It adopts the "Van den Bos Hoeksma" method to automatically correct most of the errors that may occur during measurement. Suitable for more accurate measurement of soil heat flux.
The HFP01 (SC) heat flux sensor complies with international standards ISO9869, ASTM C1046, and ASTM 1155. It should be noted that this sensor is not suitable for CSI's CR200X series data collectors.
Main technical parameters
Sensor type: thermocouple
Range:- 2000~2000W/m2
Sensitivity: 50 μ V/W/m2
Nominal resistance: 2 Ω
Working temperature:- 30℃~70℃
Size: Diameter 80mm, Thickness 5mm
Weight: 200g
HFP01 type
Sensor internal resistance:< 0.00625km2/W
Accuracy: -15%~+5% (continuous in soil for 12 hours)
HFP01SC self standard shaping
Accuracy: ± 3%
Heating resistance: 100 Ω
Input voltage: 9-15VDC
Output voltage: 0~2VDC
Calibration duration: ± 3 minutes (at 1.5W)
Average power consumption: 0.02~0.04W

The Campbell CS616 soil moisture sensor uses a highly sensitive time-domain reflection method to measure the moisture content of soil or other porous media. The probe consists of two 30cm long stainless steel probes, which are inserted into the medium for measurement.
Main technical parameters
Accuracy: ± 2.5% VWC
Resolution: 0.1% VWC
Output: ± 0.7V square wave
Electricity consumption: 65mA (during operation); 45 μ A (static state)
Power supply: 5-18VDC
Excitation voltage: 4~18VDC
***Large cable length: 305m
Probe size: 300mm in length; Diameter 3.2mm; 32mm spacing
Probe size: 85mm × 63mm × 18mm
Weight: 280g