Explore our rs485/modbus-rtu content
The OHTS1022 integrates a PT1000 RTD for temperature measurement, but field drift can occur from environmental stress or prolonged use. This article outlines a
In precision agriculture, multi-vendor sensor networks are common, but they introduce a hidden problem: nitrogen (N) readings can diverge significantly between
Scaling sensor networks across hundreds of acres isn't just about buying more probes. This article shares hard-won lessons from the field: why multi-parameter s
Daisy-chaining RS485 sensors like the OHTS1070 ultrasonic integrated weather station sounds like a great way to save cabling and ports. And it is—until the bus
The OHTS1021 soil moisture sensor delivers reliable VWC and temperature data, but its EC measurements can show subtle drift when the device runs continuously fo
Most engineers treat the LUX channel on the OHTS1060 as a nice-to-have data point for lighting control. But when you track LUX trends over time—rather than just
When you scan the OHTS1050 datasheet and see a humidity accuracy figure, it's easy to assume that's a hard guarantee under every condition. In reality, that spe
Field engineers often encounter erratic pH, EC, or moisture readings from buried OHTS1024 sensors. This article walks through a systematic debug process: checki
Scaling soil pH sensor networks across large agricultural operations reveals hidden challenges that lab tests never show. Based on field experience with the OHT
When the OHTS1031 starts dropping data or returning gibberish pH and DO readings in a remote aquaculture pond, the first instinct is to reach for an oscilloscop
This article explains how the OHTS1020's 1500V electrical isolation design prevents ground loop interference and electrochemical drift when measuring EC and pH
This article explains the technical advantages of Frequency Domain Reflectometry (FDR) used in the OHTS1022 over Time Domain Reflectometry (TDR) for continuous,
This article explores how the OHTS1021's multi-layer TDR measurement principle provides a three-dimensional view of soil moisture, temperature, and EC across 3-
This article explores how the OHTS1124's high-precision negative oxygen ion detection, combined with RS485/ModBus-RTU digital communication and industrial-grade
This article explores how the OHTS1121's AC impedance measurement technology prevents false rain detection caused by dust, salt, or standing water, ensuring rel
This article explores how the OHTS1122's automatic tilt detection feature prevents measurement errors caused by sensor displacement in challenging mountain envi
This article explores how the OHTS1024's integrated pH measurement capability, combined with VWC and EC sensing, prevents over-irrigation and nutrient lockout i
This article explores the material science behind the OHTS1023's zinc-aluminum alloy probe, explaining how this choice offers superior corrosion resistance and
Explore how the OHTS1050 multi-element weather sensor enables comprehensive noise pollution monitoring alongside environmental parameters for smart city plannin
Explores how pH fluctuations in greenhouse soils degrade nutrient uptake and crop health, and how the OHTS1020's 1500V electrical isolation design eliminates se
Brackish water environments, common in coastal aquaculture and estuarine monitoring, pose unique challenges for dissolved oxygen and pH sensors due to salinity
Explores how the OHTS1120's spectral analysis technology detects invisible road hazards like black ice and thin water films that traditional sensors miss, enabl
Traditional tipping bucket rain gauges fail when precipitation turns solid. This article explains how the OHTS1099's strain gauge weighing principle accurately
Technical deep dive into pressure-based gravimetric measurement principles and their advantages over traditional ultrasonic methods in environmental monitoring applications.
Discover how tilted pyranometers enable accurate plane-of-array measurements for precise PV performance evaluation, improving yield optimization and ROI through reliable irradiance monitoring.
Technical deep dive into wire-wound electroplated thermopile sensing principles and their advantages for precision pyranometer applications in solar energy and meteorological monitoring.
Explore how photoelectric pyranometers leverage wide-spectral-response sensors for precise global solar irradiance measurement across the complete solar spectrum in industrial applications.
Discover how high-precision thermopile pyranometers enable accurate performance monitoring and energy yield predictions in utility-scale solar farms, reducing financial risk and maximizing ROI.
Discover how real-time PAR monitoring with quantum sensors enables data-driven light management strategies to maximize crop photosynthesis efficiency, reduce energy costs, and increase agricultural yields in precision farming systems.
Discover how high-precision illuminance transmitters enable dynamic shading and supplementary lighting control to maximize crop yield while reducing energy costs in modern horticulture facilities.
How OHTS1090 directional wind transmitters integrate with multi-zone ventilation systems to optimize greenhouse airflow patterns, improving temperature uniformity and reducing hot-spot stress on crops.
How RS485 cup-type anemometers (OHTS1080) enable real-time wind speed measurement for automated greenhouse vent actuation, reducing energy costs and protecting crops from extreme conditions.
How multi-depth soil monitoring with OHTS1021 tube sensors tracks moisture distribution across root zones, enabling data-driven irrigation scheduling and reducing water waste in large-scale farming.
OHTS1022 soil moisture and temperature sensor with FDR technology, PT1000 RTD, IP68 protection, and multiple outputs including RS485, 4-20mA, and voltage signals for monitoring.
The OHTS1023 is an electrochemical soil pH sensor with zinc-aluminum alloy probe, offering analog and digital outputs. Features sealed design for long-term burial, high accuracy, and wide soil adaptability for agriculture and environmental monitoring.
The OHTS1024 is an integrated four-parameter soil sensor measuring temperature, volumetric water content (VWC), electrical conductivity (EC), and pH value. Features FDR technology, PT1000 temperature sensor, IP68 protection, and RS485 Modbus-RTU output for long-term buried monitoring.
The OHTS1031 is an online multi-parameter water quality sensor based on fluorescence quenching principle, integrating dissolved oxygen, pH, and temperature measurement with RS485 Modbus RTU communication for aquaculture and environmental monitoring.
The OHTS1050 is an integrated multi-element meteorological monitoring device featuring noise, PM2.5/PM10, temperature, humidity, pressure, and illumination measurement with RS485 Modbus-RTU output for outdoor environmental monitoring.
Integrated multi-parameter environmental monitoring sensor measuring CO₂, temperature, humidity, pressure, noise, and light with RS485 ModBus-RTU interface for outdoor and indoor applications.
Integrated ultrasonic weather station with 10-in-1 design for wind speed/direction, temperature/humidity, noise, PM2.5/PM10, CO2, pressure, light, rainfall, and solar radiation monitoring.
Industrial wind speed transmitter with aluminum alloy enclosure, RS485/Modbus RTU output, 0~60 m/s measurement range, and 0.1 m/s resolution for meteorological and environmental monitoring applications.
OHTS1090 360° wind direction transmitter features aluminum housing, RS485/ModBus-RTU protocol, high-precision bearings, and -40℃ ~ +60℃ operating range.
High-precision photoelectric illuminance transmitter with dual measurement ranges (0 ~ 65535Lux or 0 ~ 200000Lux), RS485 ModBus-RTU interface, aluminum alloy IP65 enclosure for outdoor and industrial applications.
Industrial-grade UV radiation transmitter with aluminum housing, measuring 290-390nm wavelength range. Features dual output of UV intensity (0-15 mW/cm²) and UV Index with RS-485 ModBus-RTU interface and IP67 protection.
Fully automatic solar radiation tracking device with dual-mode positioning system combining optical and GPS tracking, thermoelectric sensing for direct and diffuse radiation measurement in 0.3 ~ 3 μm spectral range with RS-485/ModBus-RTU output.
The OHTS1094 is a quantum PAR sensor measuring 400-700nm waveband with IP67 protection, ModBus-RTU output, and cosine correction for agricultural and meteorological applications.
The OHTS1095 Pyranometer is a high-precision solar total radiation transmitter based on thermoelectric effect with double-layer quartz glass dome, RS-485 ModBus-RTU output, and wide spectral range 0.3 μm ~ 3 μm for meteorological and photovoltaic applications.
High-precision photoelectric pyranometer for measuring global solar irradiance with ModBus-RTU RS-485 output, 0 - 1800 W/m² range, and 95% transmittance dust shield for meteorological and PV monitoring applications.
The OHTS1098 Evaporation Transmitter is a water surface evaporation monitoring instrument based on pressure measurement principles, featuring 304 stainless steel dual-layer structure and RS-485 Modbus-RTU output.
Universal precipitation measurement sensor based on strain gauge weighing principle, monitoring solid, liquid, and mixed-phase precipitation with 0.1 mm resolution and 6 ~ 1800 mm/h intensity range. Features auto-heating and dual RS485/pulse output for meteorological and hydrological applications.
The OHTS1120 is a non-contact road surface condition sensor using spectral analysis technology. It monitors road status, water/ice thickness, snow depth, and temperature via RS485/ModBus-RTU for ITS applications.
The OHTS1121 is a qualitative rain/snow detection sensor using AC impedance measurement with RS485 ModBus-RTU and relay outputs, featuring IP68 protection and optional heating for harsh outdoor environments.
The OHTS1122 is a digital snow depth measurement sensor based on phase-shift laser ranging principle, featuring 1mm resolution, ±1mm accuracy, automatic tilt detection, temperature compensation, and IP65 protection for harsh outdoor environments.
Industrial-grade OHTS1123 integrated weather station with 9-in-1 multi-parameter monitoring including wind speed/direction, temperature/humidity, noise, PM2.5/PM10, CO2, and atmospheric pressure. Features RS485 ModBus-RTU communication and Bluetooth configuration.
High-precision negative oxygen ion detector with 0 ~ 5,000,000 ions/cm³ range, RS485/ModBus-RTU interface, and LCD display for environmental monitoring, forestry, and indoor air quality assessment.
Comprehensive technical comparison of thermopile and photodiode sensing technologies for pyranometers, analyzing spectral response, measurement accuracy, and application suitability for meteorological and photovoltaic monitoring.
Explore fluorescence quenching technology principles and advantages over traditional electrochemical methods in dissolved oxygen sensors for water quality monitoring applications.
Technical deep dive into photodiode operation principles, spectral sensitivity, and conversion algorithms used in professional LUX meters like the OHTS1091 for industrial IoT applications.
Technical deep dive into photoelectric UV sensing principles, exploring 290-390nm spectral response mechanisms, signal conversion processes, and industrial applications in environmental monitoring systems.
Technical analysis of multi-junction thermoelectric sensing elements for broadband solar radiation measurement applications in industrial IoT and environmental monitoring systems.
Integrated multi-parameter isolated soil sensor monitoring temperature, VWC, EC, salinity, NPK, and pH with 1500V isolation and IP68 protection for precision agriculture.
OHTS1021 soil moisture sensor uses TDR principle for 3-5 layer monitoring of moisture, temperature and EC. Features IP68 protection, PVC housing, and RS485 ModBus-RTU communication for smart agriculture.
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Ensure stable data transmission for your environmental sensors with these professional RS485 wiring tips.