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E-mail
marketing@ecotek.com.cn
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Phone
18710042796
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Address
22F, Block A, Chengming Building, No. 2 Xizhimen South Street, Xicheng District, Beijing
Beijing Ligotai Technology Co., Ltd
marketing@ecotek.com.cn
18710042796
22F, Block A, Chengming Building, No. 2 Xizhimen South Street, Xicheng District, Beijing
TEROS 54 Soil Profile Moisture Temperature SensorIt is a sensor with high measurement accuracy and easy installation, which can achieve precise measurement and avoid large-scale excavation during installation. Most profile sensors require a choice between ease of installation and disassembly, sensor accuracy, measurement volume, and durability. The TEROS 54 developed by METER can fully meet these requirements without any further trade-offs.
TEROS 54 Soil Profile Moisture Temperature SensorLocated at depths of 15, 30, 45, and 60cm, it provides measurements of the root zone without the need to dig pits or frequently search for suitable installation locations in shallower soil layers. The installation of TEROS 54 only requires a 2cm borehole, and then a sturdy four wing profile sensor is inserted into the soil, which has better contact with the soil and can achieve more accurate measurements; TEROS 54 is highly suitable for measuring annual plants, as it can be easily installed and disassembled multiple times using specialized extraction tools.
The four wing design of TEROS 54 has a larger measurement volume than typical cylindrical sensors, providing a more comprehensive understanding of soil moisture conditions.
TEROS 54 only requires one cable to connect ZL 6, plug and play, no programming or wiring required, the same number of data acquisition instruments can be connected to more sensors.

Main Features
Simultaneously measure the moisture and temperature of multiple soil profiles at different depths
●Installation only requires one 2cm drill hole, no guide tube needed
●Directly inserted into the soil, in close contact with the soil
●Access ZENTRA Cloud for remote viewing, sharing, and management of data
●Use specialized disassembly tools to dismantle all sensors at once
●Connect one cable to ZL6, plug and play
●Very suitable for annual plants and soils that require seasonal installation and removal of sensors
●Only occupying one data acquisition port can obtain multiple measurement results
●Larger measurement volume
●Reduce installation and disassembly work
●High precision, research grade soil moisture measurement
●Sensors provide profile measurements in most root areas and their surroundings
●Durable design ensures durability during installation and operation in harsh environments

Technical Specifications
measurement metrics |
Volume Moisture Content (VWC) |
Apparent dielectric constant εa |
temperature |
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range |
Mineral soil calibration: 0.00~0.70 m3/m3 Non soil medium calibration: 0.0~1.0 m3/m3 |
1~50 (soil range) 1 (air)~80 (water) |
-20 ~ 60 ℃ |
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resolution |
0.001 m3/m3 |
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0.03 ℃ |
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accuracy |
General calibration: ± 0.05 m3/m3(Dissolved state EC) <8 dS/m in mineral soil) Specific medium calibration: ± 0.02~0.03 m3/m3 (In any porous medium) |
± 1 (εα) @ 1-40 (soil range), 15% of the reading @ 40-80, |
±0.35 ℃@ -20 ~ 0 ℃ ±0.25 ℃@ 0 ~ 60 ℃ |
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frequency measurement |
70 MHz |
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data output |
DDI serial port and SDI-12: 3-wire cable version and 4-wire cable version RS-485 Modbus RTU and TensorLINK serial port: 4-wire cable version |
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data collection |
METER ZL6 and EM60 data acquisition or any data acquisition system with 4.0 to 24.0VDC power supply, interface SDI-12 serial port, and/or RS-485 serial port, Modbus RTU or TensorLINK communication. |
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Specifications |
Length: 75 cm; Head width: 11cm; Diameter: 6cm |
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Operating Temperature |
-20 ~ 60 ℃ |
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Cable length |
5 m, Other lengths can be customized, up to 75 meters in length, with an M12 interface of 1.5 meters |
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power supply voltage |
Minimum 4.0 VDC, maximum 24.0 VDC |
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Digital input voltage (logic high) |
最小 2.8 V,典型 3.6 V,max 5.0 V |
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Digital input voltage (logic low) |
最小-0.3 V,典型 0 V,max 0.8 V |
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Digital output voltage (logic high) |
3.6V |
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Power line conversion rate |
As low as 1.0V/ms |
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Power loss(During 500 ms measurement period) |
as low as3mA, Typical 35mA, up to 50mA |
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Power loss (during sleep) |
as low as0.03mA, Typical 0.1mA |
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Startup time |
DDI serial port: shortest 500ms, longest 800ms SDI-12: typical 1000ms SDI-12, DDI off: minimum 500ms, typical 600ms, maximum 800ms |
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Measurement time (4 depths) |
Shortest 500 ms, longest 800 ms |
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Comply with standards |
EM ISO/IEC 17050:2010 (CE 标志) |
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Origin and Manufacturer: METER Corporation, USA