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Beijing Ligtai Technology Co., Ltd.

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BrandVELP
OriginItaly
ModelRespirometric Sensor System 6
Pressure Range500–2000 hPa
Sensor Count6
Test Vessel Capacity1000 mL
Data Acquisition Interval10 min – 48 h
Test Duration1–180 days
Stirrer Speed Control6-digit digital setting with lock function
Sensor Power2 W
Battery TypeCR2430
Sensor Dimensions50 × 70 × 70 mm
Sensor Weight80 g
Stirrer Unit Dimensions230 × 51.5 × 370 mm
Stirrer Unit Weight1.75 kg
Ingress ProtectionIP54 (EN 60529)
Safety ComplianceIEC/EN 61010-1
Databox™ Capacityup to 48 sensors (8 systems × 6 sensors)
ConnectivityUSB (RESPIROSoft™) or optional Wi-Fi (Ermes™ Cloud Platform)
SoftwareRESPIROSoft™ v5.x with audit trail, method templates, report generation, and battery-level monitoring
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BrandMETER
OriginUSA (Designed & Engineered in Germany)
ManufacturerMETER Group GmbH & Co. KG (formerly UMS)
ModelTEROS 32
TypePressure-Based Tensiometer
ComplianceISO 9001:2015, CE (2014/30/EU & 2011/65/EU), ISO/IEC 17050:2010
Measurement Range-85 to +50 kPa (soil water potential), -30 to +60 °C (temperature)
Resolution0.0012 kPa, ±0.01 °C
Accuracy±0.15 kPa, ±0.1 °C (-20–40 °C), ±1 °C (outside range)
Output ProtocolsSDI-12, DDI serial, TensioLINK™, Modbus RTU
Power Supply4.0–28.0 VDC
Enclosure RatingIP68
Ceramic Cup MaterialAl₂O₃ (AI203), Bubble Point: 1500 kPa
Rod MaterialPMMA
Corpus MaterialPOM-GF (glass-fiber-reinforced polyoxymethylene)
Probe Length Options40 cm / 80 cm / 120 cm
Diameter2.5 cm
Cable OptionsStandard 5 m, up to 75 m custom
Connector Types3.5 mm stereo jack (4-pin), M12 (4-pin), or tinned bare wire
Installation Angle-80° to -10° (upward), +10° to +80° (downward)
Operating Temperature-30 °C (dry), 0 °C (hydrated), max 50 °C
Ceramic Cup Warranty10 years
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BrandMETER
OriginUSA
ModelSO-431
Measurement PrincipleGalvanic (Electrochemical)
Output SignalAnalog mV (O₂ concentration proportional)
Range0–30% O₂
Repeatability< 0.1% (at 20.95% O₂)
Nonlinearity< 1%
Long-term Drift5% per year (0.6 mV/year)
O₂ Consumption0.1 μmol/day (at 20.95% O₂, 23°C)
Response Time (t₉₀)15 s
Operating Temperature–20 to +60 °C
Relative Humidity0–100% RH (non-condensing)
Pressure Range60–114 kPa
Excitation Voltage (Thermistor)2.5 V DC
Heater Supply12 V DC
Heater Power74 mW
Thermistor Current≤0.1 mA @ 70 °C
Quiescent Current0.6 mA
Active Measurement Current1.3 mA
Sensitivity10–15 mV at 20.95% O₂ (sea level, 101.3 kPa)
Zero Output< 0.5 mV
Housing MaterialPolypropylene
Diffusion CavityIntegrated micro-chamber for gas equilibration
Cable Length5 m (extendable)
DimensionsØ32 mm × 68 mm
Weight175 g (incl. cable)
Compatible Data LoggersMETER EM60 Series, ZL6 Series, ZSC
Software IntegrationZENTRA Cloud platform with auto-recognition and remote data access
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BrandMETER
OriginUSA
ModelATMOS 14
Measurement ParametersWater Vapor Pressure, Air Temperature, Relative Humidity, Atmospheric Pressure
Communication ProtocolsSDI-12, DDI Serial Interface
Operating Temperature Range-40 °C to +80 °C
RH Range0–100 % RH (Resolution: 0.1 % RH
Accuracy±0.8 % RH typical hysteresis
Long-term drift±0.25 % RH/year)
Temperature Accuracy±0.2 °C
Drift<0.03 °C/year
Vapor Pressure Range0–47 kPa (Resolution: 0.01 kPa)
Barometric Pressure Range1–120 kPa (Accuracy: ±0.05 kPa @ 25 °C
Drift<0.1 kPa/year)
Response Time (τ₆₃)<25 s (RH), <165 s (T), <10 ms (P)
Physical DimensionsØ20 mm × 54 mm
CableStandard 5 m (up to 75 m customizable)
Power Supply4.0–15.0 VDC
Current Draw3.5 mA typical during measurement, 0.03 mA in standby
ComplianceISO 9001:2015, EN 61326-1:2013, EN 50581:2012, 2004/108/EC, 2011/65/EU
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BrandMETER
OriginUSA
Manufacturer TypeAuthorized Distributor
Product CategoryImported
ModelZL6
PricingContact for Quote
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BrandMETER
OriginUSA
Manufacturer TypeAuthorized Distributor
Import StatusImported
ModelECRN-50
PricingAvailable Upon Request
Sensor TypeSingle-Tip Tipping Bucket
Resolution1 mm
Output Unitsgal/h or L/h (configurable)
Housing MaterialUV-Stabilized, Waterproof, Frost-Resistant ABS Plastic
Operating Temperature0–60 °C
Cable Length5 m
Interface3.5 mm Stereo Jack (TTL Pulse Output)
Dimensions5 cm × 10 cm (Diameter × Height)
Data Logger CompatibilityMETER ZL6, EM50/EM60 Series, ProCheck (sold separately)
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BrandMETER
OriginUSA
Manufacturer TypeAuthorized Distributor
Origin CategoryImported
ModelT5
Product CategoryPressure-Based Tensiometer
Measurement PrincipleCeramic Cup Equilibrium with Integrated Piezoresistive Pressure Transducer
Operating Range+100 to −85 kPa (≈ pF 2.9)
Accuracy±0.5 kPa
Resolution0.1 kPa
Typical Drift<0.5% per annum
Temperature CompensationYes, 0.5% FS over 25 K
Excitation Voltage10.6 VDC (5–15 VDC stable)
Output SignalRatiometric mV/V (−100 ±3 mV at +100 kPa
Sensor Body Diameter5 mm
Sensor Head Diameter20 mm
Sensing Area0.5 cm²
Total Length4 cm + custom shaft length (standard 70 mm)
Cable LengthStandard 5 m (customizable)
Power Consumption~1.3 mA @ 10.6 VDC
Bridge ConfigurationAsymmetric Wheatstone Bridge
Sensing ElementSilicon Piezoresistive Pressure Sensor
Max Overpressure Tolerance±300 kPa
MaterialAcrylic Shaft, Porous Ceramic Cup
CompatibilityCampbell Scientific dataloggers, InField 7 systems
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BrandMETER
OriginUSA
ModelECRN-50 / ECRN-100
Sensor TypeTipping Bucket (Single for ECRN-50
Resolution1.0 mm per tip (ECRN-50) / 0.2 mm per tip (ECRN-100)
OutputPulse (Open Collector)
Housing MaterialUV-stabilized, waterproof, frost-resistant ABS plastic
Operating Temperature0–60 °C
Cable Length5 m
Connector Type3.5 mm mono audio jack
Compatible Data LoggersMETER ZL6, EM50/EM60 series, ProCheck
ComplianceDesigned for long-term field deployment in accordance with ASTM D3478 and ISO 9060:2018 Class B recommendations for precipitation measurement
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BrandMETER
OriginUSA
ManufacturerMETER Group, Inc. (formerly Decagon Devices)
ModelECRN-100
Resolution0.2 mm
Sensor TypeDual tipping bucket
Housing MaterialUV-stabilized, waterproof, frost-resistant ABS plastic
Operating Temperature0–60 °C
Cable Length5 m
Interface3.5 mm stereo audio jack (pulse output)
Dimensions17 cm × 14.2 cm
Data Logger CompatibilityMETER ZL6, EM50/EM60, ProCheck (sold separately)
Certification ComplianceDesigned for long-term field deployment in accordance with WMO Guide to Instruments and Methods of Observation (CIMO Guide), ISO 9060:2018 Class B recommendations for precipitation measurement
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BrandMETER
OriginGermany
ModelTEROS 06
Temperature Range–20 to 50 °C
Accuracy±0.1 °C (0–30 °C), ±0.2 °C (–20 to 50 °C)
Resolution±0.03 °C
Measurement Depths–5, –10, –20, –30, –50, –100 cm
Output InterfacesSDI-12, RS-485 (Modbus RTU / tensioLINK), DDI
Power Supply3.9–28.0 VDC
Operating Temperature–30 to 60 °C
Probe Diameter20 mm
Length1040 mm
Housing MaterialPA66GF30
Sensing ElementStainless Steel
Cable Standard4.5 m (custom up to 75 m)
ComplianceISO 9001:2015, CE (EMC per ISO/IEC 17050:2010)
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BrandMETER
OriginUSA
Manufacturer TypeAuthorized Distributor
Product CategoryPressure-Based Water Level Sensor
ModelHYDROS 21
Measurement PrincipleAbsolute pressure transduction with barometric compensation
Depth Range0–1000 cm H₂O
EC Range0–120 dS/m
Temperature Range−40 to +60 °C
Resolution1 mm (depth), 0.001 dS/m (EC), 0.1 °C (temp)
Accuracy±0.25% FS @20 °C (depth), ±0.01 dS/m or ±10% (EC), ±1 °C (temp)
Output InterfaceDDI serial or SDI-12
Power Supply4.0–15.0 VDC
Operating Temperature0–60 °C
DimensionsØ3.4 cm × 9 cm
CableStandard 10.0 m (optional 20.0/40.0 m), Ø6.00 ± 0.25 mm with 0.80 mm jacket
Connector3.5 mm stereo jack or tinned 3-wire lead
Current Draw2.5–8.0 mA (active), ~0.35 mA (standby)
Startup Time52–100 ms (DDI), ≤750 ms (SDI-12), ≤200 ms (SDI-12 w/ DDI disabled)
Measurement Duration≤600 ms
ComplianceISO 9001:2015 certified manufacturing
CE marked per EM ISO/IEC 170502010
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BrandVELP
OriginItaly
Model6 Maxi-BMP
Sensor TypeElectronic Pressure Transducer (Mercury-Free)
Pressure Range500–2000 hPa
Display4-digit LED
InterfaceDual-button Control
Output UnitsNmL CH₄/g SV and mbar
Test Vessel Capacity1000 mL
Max. Sensors per Databox™48
Data Acquisition Interval2 h to 48 h
Test Duration10–60 days
Enclosure RatingIP54 (per EN 60529)
Safety ComplianceIEC/EN 61010-1
ConnectivityUSB (RESPIROSoft™) or Optional Wi-Fi (Ermes™ Cloud Platform)
PowerRechargeable Battery (Long Standby)
Optional ModuleErmes™ Remote Monitoring & Alert System
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BrandDynamax
OriginUSA
ModelSapIP-IRT
Field of ApplicationNon-contact plant canopy surface temperature measurement for irrigation scheduling and physiological stress monitoring
Viewing Angle20°
Measurement Accuracy±0.5°C (ambient temperature range 0–50°C)
Operating Temperature0–50°C
Power SupplyRechargeable battery with optional 2 W solar panel
Output OptionsAnalog (0–5 V or 4–20 mA), SDI-12, or wireless (SapIP mesh protocol)
Data LoggingConfigurable interval from 10 s to 60 min
Network TopologySelf-organizing wireless mesh (SapIP) supporting up to 200 sensor nodes per network
Transmission RangeUp to 1.6 km radius (line-of-sight, terrain-dependent)
ComplianceCE, FCC Part 15, RoHS
Software IntegrationWatcher™ desktop application (Windows), cloud-based data dashboard (HTTPS/TLS encrypted)
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BrandLI-COR
OriginUSA
ModelLI-550
Dimensions9.1 cm × 9.1 cm × 5.2 cm
Measurement Path Length35 mm
Weight≤50 g
Power Supply5–32 VDC @ 320 mW
Output InterfacesRS-232 (LI-550), RS-232/RS-422/UART-3V (LI-550P)
Sampling Frequencies1, 2, 5, 10, 20, 40 Hz
Ultrasonic Frequency60 kHz
Wind Speed Range0–50 m/s
Wind Speed Resolution0.01 m/s
Wind Speed Accuracy±0.2 m/s (0–10 m/s), ±2% (11–30 m/s), ±4% (31–50 m/s)
Wind Direction (u/v)0–359°, Resolution: 1°, Accuracy: ±1°
Vertical Wind Component (w) Range±15°
Temperature Range−20 to +72 °C, Resolution: 0.01 °C, Accuracy: ±2.0 °C
Relative Humidity Range0–100 %RH, Resolution: 0.1 %RH, Accuracy: ±3 %RH
Barometric Pressure Range50–115 kPa, Resolution: 0.1 kPa, Accuracy: ±1.0 kPa
3D Accelerometer Range±2 g (u/v/w), Tilt (Pitch/Roll): ±90°
Magnetometer Range±50 Gauss (u/v/w), Heading Accuracy: ±5°
Dew Point & Air DensityComputed from measured T, RH, and P
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