Environmental Monitoring Instruments
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Showing 2311–2340 of 2384 results
| Brand | YSI |
|---|---|
| Origin | USA |
| Model | PRO1020 |
| Measurement Parameters | Temperature, pH, Dissolved Oxygen (DO) |
| DO Method | Polarographic (Clark-type) or Galvanic Cell (user-selectable) |
| DO Range | 0–50 mg/L (0–500% air saturation) |
| pH Range | 0–14 |
| pH Resolution | 0.01 |
| pH Accuracy | ±0.2 |
| Temperature Range | –5 to +55 °C |
| Temperature Accuracy | ±0.2 °C |
| ORP Range | –1500 to +1500 mV |
| ORP Accuracy | ±20 mV |
| DO Resolution | 0.01 or 0.1 mg/L (selectable) |
| DO Accuracy | ±2% or ±0.2 mg/L (0–20 mg/L), ±6% (20–50 mg/L) |
| Data Storage | 50 measurement sets |
| Display | Backlit LCD with dual backlight (screen + keypad) |
| Enclosure Rating | IP67 |
| Dimensions | 8.3 × 21.6 × 2.3 cm |
| Weight | 475 g (with batteries) |
| Power | Two AA alkaline batteries |
| Cable Options | 1 m / 4 m / 10 m / 20 m / 30 m detachable cables |
| Connector | MIL-spec waterproof quick-disconnect |
| Probe Housing | Stainless steel protective sleeve |
| Battery Compartment | Independently sealed from electronics |
| Bend Endurance | ≥300,000 cable flex cycles |
| Brand | YSI |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Product Category | Imported Instrument |
| Model | Pro20+ with Integrated Stirring BOD Probe |
| Price Range | USD 1,950–2,030 (est.) |
| Unit Weight | ~0.3 kg (probe body only) |
| Operating Temperature | 0–50 °C |
| Power Supply | Host-powered via cable interface |
| Repeatability | ≤ ±0.1 mg/L DO |
| Response Time | ≤ 30 s (to 90% of final value) |
| DO Range | 0–50 mg/L |
| Atmospheric Pressure Compensation | Built-in barometer (375–825 mmHg) |
| Conductivity Range | 0–200 mS/cm |
| TDS Range | 0–100 g/L (user-selectable conversion factor: 0.3–1.00 |
| Salinity Range | 0–70 ppt (manual or automatic compensation) |
| Temperature Range | −5 to 70 °C |
| DO Resolution | 0.01/0.1 mg/L |
| Pressure Resolution | 0.1 mmHg |
| Conductivity Resolution | 0.001–0.1 mS/cm |
| TDS Resolution | 4-digit display |
| Salinity Resolution | 0.01 ppt |
| Temperature Resolution | 0.1 °C |
| DO Accuracy | ±2% of reading (0–200%), ±6% of reading (200–500%) |
| Pressure Accuracy | ±3 mmHg |
| Conductivity Accuracy | ±0.5% of reading or ±0.001 mS/cm |
| Salinity Accuracy | ±1% of reading or ±0.1 ppt |
| Temperature Accuracy | ±0.2 °C |
| IP Rating | IP67 |
| Drop Test | Certified for 1-meter drop resistance |
| Enclosure Material | Rugged polycarbonate housing with stainless-steel probe guard |
| Connector Type | MIL-spec waterproof quick-disconnect (rated for >300,000 flex cycles) |
| Data Storage | 50 measurement sets |
| Battery Life | ≥400 hours on two AA alkaline cells |
| Certifications | RoHS, CE, WEEE, IP67 |
| Brand | YSI |
|---|---|
| Origin | USA |
| Model | Pro20i |
| Instrument Type | Portable |
| Measurement Principle | Polarographic Electrochemical Probe |
| DO Range | 0–50 mg/L |
| Accuracy | ±0.2 mg/L (at 0–20 mg/L) |
| Temperature Range | −5 to 55 °C |
| Temp Accuracy | ±0.3 °C |
| Pressure Range | 53–133 kPa |
| Pressure Accuracy | ±0.4 kPa |
| Resolution (DO) | 0.01 or 0.1 mg/L (selectable) |
| Resolution (Temp) | 0.1 °C |
| Resolution (Pressure) | 0.01 kPa |
| Data Storage | 50 sets |
| IP Rating | IP67 |
| Drop Test | 1 m |
| Battery Life | 400 h (2 × C-cell alkaline) |
| Certifications | RoHS, CE, WEEE, IP67 |
| Brand | YSI |
|---|---|
| Origin | USA |
| Model | ProQuatro |
| Instrument Type | Portable/HANDHELD Water Quality Analyzer |
| Detection Principle | Electrochemical Sensors |
| Measured Parameters | pH, Dissolved Oxygen (DO), Electrical Conductivity (EC), Salinity, Total Dissolved Solids (TDS), Temperature |
| Measurement Ranges | pH: 0–14.00 |
| DO | 0–50.0 mg/L |
| EC | 0–200,000 µS/cm |
| Salinity | 0–70 ppt |
| Temperature | −5 to +60 °C |
| Repeatability | pH: ±0.02 pH |
| DO | ±0.2 mg/L |
| EC | ±0.5% of full scale |
| Temperature | ±0.1 °C |
| Brand | YSI |
|---|---|
| Origin | USA |
| Model | ProSolo |
| Instrument Type | Portable |
| Measurement Principle | Fluorescence-based Optical Sensing |
| DO Range | 0–50 mg/L (0–500% air saturation) |
| DO Accuracy | ±0.1 mg/L |
| DO Repeatability | ≤±0.5% |
| Temperature Range | –5 to 70 °C |
| Temperature Accuracy | ±0.2 °C |
| Ingress Protection | IP67 |
| Battery Life | Up to 48 h (rechargeable Li-ion) |
| Data Storage | >100,000 readings |
| Calibration Records | 400 entries |
| Compliance | EPA-approved method for BOD testing |
| Cable Options | 1–100 m (standard: 4 m) |
| Brand | YST Environmental |
|---|---|
| Origin | Liaoning, China |
| Model | YST308B-MS880T |
| Measurement Range | 0–5000 mg/L (extendable to 0–50000 mg/L) |
| Measurement Principle | Dual-beam infrared scattering and transmission hybrid optics |
| Output Signals | 4–20 mA analog output, RS485 digital interface (HJ 212 protocol compliant) |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Operating Temperature | −10 °C to +55 °C |
| Ingress Protection | IP68 |
| Installation Options | Submersible or flow-through configurations |
| Cleaning Mechanism | Integrated air-pulse auto-cleaning system |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST208B-CR810 |
| Measuring Range | 0.5–20 m (sensor-dependent) |
| Accuracy | ±0.5% to ±1% FS |
| Resolution | 1 mm |
| Display | Bilingual LCD / TFT color screen with trend graph |
| Output Signals | 4–20 mA analog, RS485/Modbus RTU digital |
| Alarm Outputs | 2–4 relay channels (5 A / 250 VAC) |
| Power Supply | AC 220 V ±10% or DC 12–24 V |
| Power Consumption | <5 W |
| Enclosure Rating | IP65 (main unit), IP68 (sensor) |
| Housing Material | ABS/aluminum (unit), 304/316L stainless steel (sensor) |
| Standard Cable Length | 10 m (customizable) |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST208B-CR810 |
| Measuring Range | 0–10 m |
| Accuracy | ±0.5% to ±1% FS |
| Resolution | 1 mm |
| Ultrasonic Frequency | 20–200 kHz |
| Transmitter Operating Temperature | −20 °C to +70 °C |
| Sensor Operating Temperature | 0 °C to +70 °C |
| Enclosure Rating | IP65 (Transmitter), IP68 (Sensor) |
| Power Supply | AC 220 V or DC 24 V |
| Output Signals | 4–20 mA analog, RS485 digital (Modbus RTU) |
| Installation | Fixed bracket mount |
| Maintenance Interval | Quarterly |
| Brand | YST (Dalian Yist Instruments) |
|---|---|
| Origin | Liaoning, China |
| Model | YST208B-CR810 |
| Measuring Range | 0.2–10 m (customizable) |
| Power Supply | AC 220 V ±10% or DC 24 V |
| Output Signals | 4–20 mA analog, RS485 digital |
| Sensor IP Rating | IP68 |
| Host IP Rating | IP65 |
| Sensor Operating Temperature | −10 to 60 °C |
| Host Operating Temperature | 0 to 50 °C |
| Mounting Options | Top-mounted, side-mounted, submersible |
| Brand | YST (Dalian Yist Environmental Technology Co., Ltd.) |
|---|---|
| Origin | Liaoning, China |
| Model | YST208B-CR810 |
| Measuring Range | 0.5–20 m (sensor-dependent) |
| Accuracy | ±0.5% to ±1% FS |
| Resolution | 1 mm |
| Display | Bilingual LCD with trend graph |
| Output Signals | 4–20 mA analog, RS485/Modbus RTU digital |
| Alarm Outputs | 2–4 relay channels (5 A / 250 VAC) |
| Power Supply | AC 220 V ±10% or DC 12–24 V |
| Power Consumption | <5 W |
| Enclosure Rating | IP65 (main unit), IP68 (sensor) |
| Housing Material | ABS/aluminum (unit), 304/316L stainless steel (sensor) |
| Standard Cable Length | 10 m (customizable) |
| Brand | YST (Dalian Yist Instrument Co., Ltd.) |
|---|---|
| Origin | Liaoning, China |
| Model | YST208B-CR810 |
| Measuring Range | 0.2–10 m (expandable) |
| Accuracy | ±1% FS or ±5 mm (whichever is greater) |
| Resolution | 1 mm |
| Ultrasonic Frequency | 20–50 kHz |
| Operating Temperature (Sensor) | −10°C to +60°C |
| Enclosure Rating | Sensor IP68, Main Unit IP65 |
| Output Signals | 4–20 mA analog, RS485 digital |
| Power Supply | 220 V AC or 24 V DC |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST308B-MS880T |
| Measurement Range | 0–500 / 0–1000 / 0–5000 mg/L (field-selectable) |
| Operating Temperature | 0–50 °C |
| Relative Humidity | ≤90% RH (non-condensing) |
| Output Signals | 4–20 mA analog, RS485 digital |
| Power Supply | AC 220 V ±10% @ 50/60 Hz or DC 24 V ±10% |
| Installation | Submersible |
| Probe IP Rating | IP68 |
| Enclosure IP Rating | IP65 |
| Compliance | Designed for continuous in-situ SS monitoring per ISO 7027 (turbidity correlation), ASTM D3977, and EPA Method 160.1 principles |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST308B-MS880T |
| Measurement Principle | Infrared Light Scattering (ISO 7027 Compliant) |
| Range | 0–20 g/L |
| Resolution | 0.01 g/L |
| Accuracy | ±2% FS |
| Sensor IP Rating | IP68 |
| Transmitter IP Rating | IP65 |
| Response Time (T90) | ≤10 s |
| Operating Temp (Sensor) | 0–60 °C |
| Operating Temp (Transmitter) | 0–50 °C |
| Humidity | ≤90% RH (non-condensing) |
| Power Supply | AC 220 V ±10%, 50/60 Hz |
| Output Signals | 4–20 mA (≤500 Ω load), RS485 Modbus RTU |
| Brand | YST (Dalian Yist Instrument Co., Ltd.) |
|---|---|
| Origin | Liaoning, China |
| Model | YST308B-MS880T |
| Measurement Principle | Infrared Dual-Scatter Optical Detection |
| Range | 0–5000 mg/L (extendable to 0–20,000 mg/L) |
| Accuracy | ±2% FS (0–100 mg/L), ±5% FS (100–5000 mg/L) |
| Output | RS485 with Modbus RTU Protocol |
| Power Supply | DC 12–24 V, <50 mA avg. |
| Operating Temperature | −5 to +50 °C |
| Humidity | <85% RH (non-condensing) |
| Enclosure Rating | IP68 |
| Housing Material | 316 Stainless Steel + Polyoxymethylene (POM) |
| Brand | YST (Dalian Yist Instruments) |
|---|---|
| Origin | Liaoning, China |
| Model | YST308B-MS880T |
| Measurement Principle | Dual-beam infrared light scattering (ISO 7027 compliant) |
| Range | 0.01–20,000 mg/L (standard) |
| Resolution | 0.01–1 mg/L (scale-dependent) |
| Accuracy | ±5% of reading (subject to sludge homogeneity) |
| Repeatability | ±2% |
| Operating Temperature | 0–45 °C |
| Storage Temperature | −15–50 °C |
| Enclosure Rating | IP68 / NEMA 6P |
| Output Interface | RS485 / Modbus RTU |
| Housing Material | SUS316L stainless steel body |
| Optional Feature | Motorized brush cleaning system |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST308B-MS880T |
| Measurement Range | 0–50 g/L (expandable to 0–100 g/L) |
| Resolution | 0.01 g/L |
| Accuracy | ±1% FS |
| Sensor Operating Temperature | 0–60 °C |
| Host Operating Temperature | 0–50 °C |
| Humidity Limit | ≤90% RH (non-condensing) |
| Power Supply | AC 220 V ±10%, 50/60 Hz |
| Sensor IP Rating | IP68 |
| Host IP Rating | IP65 |
| Response Time (T90) | ≤10 s |
| Output Signals | 4–20 mA (load ≤500 Ω), RS485 |
| Brand | YST (Dalian Yist Instrument Co., Ltd.) |
|---|---|
| Origin | Liaoning, China |
| Model | YST308B-MS880T |
| Measurement Range | 0–9999 mg/L (extendable to 0–50 g/L) |
| Principle | Dual-mode infrared optical sensing (880 nm LED source, combined scatter & transmission detection) |
| Accuracy | ±1% FS |
| Resolution | 3 mg/L (0–1000 mg/L), 0.01 g/L (>1000 mg/L) |
| Operating Temp. | Sensor: 0–60°C |
| Controller | −10–55°C |
| Output | 4–20 mA analog + RS485 Modbus-RTU digital |
| IP Rating | Sensor IP68, Controller IP65 |
| Power Supply | AC 85–265 V ±10% or DC 9–36 V |
| Sampling Interval | 1–30 min adjustable |
| Housing | Sensor body 316L stainless steel, Controller enclosure polycarbonate |
| Brand | YST (Dalian Yist Environmental Technology) |
|---|---|
| Origin | Liaoning, China |
| Model | YST308B-MS880T |
| Measurement Range | 0–20 g/L |
| Accuracy | ±1% FS |
| Resolution | 0.01 g/L |
| Operating Temperature | 0–60 °C |
| Relative Humidity | <85% RH |
| Enclosure Rating | IP65 (transmitter), IP68 (sensor) |
| Power Supply | 90–260 V AC or 12–24 V DC |
| Output Signals | 4–20 mA analog, RS485 digital (Modbus RTU) |
| Sensor Material | SUS316L stainless steel |
| Sampling Interval | Adjustable from 1 to 30 minutes |
| pH Tolerance | 2–12 |
| Optical Principle | Near-infrared (NIR) backscatter turbidimetry |
| Brand | YST (Dalian Yist Environmental Technology Co., Ltd.) |
|---|---|
| Origin | Liaoning, China |
| Model | YST308B-MS880T |
| Measurement Principle | Infrared Scattering (880 nm) |
| Range | 0–50,000 mg/L (multi-range configurable) |
| Power Supply | DC 12–24 V, <50 mA avg. |
| Output Signals | 4–20 mA analog, RS485 digital (Modbus RTU) |
| Sensor IP Rating | IP68 |
| Host IP Rating | IP65 |
| Sensor Operating Temp. | −10 to 60 °C |
| Host Operating Temp. | 0 to 50 °C |
| Installation Options | Top-mount, side-mount, submersible |
| Sensor Material | 316 stainless steel |
| Housing Material | POM engineering plastic |
| Brand | YST (Dalian Yist Environmental Technology) |
|---|---|
| Origin | Liaoning, China |
| Model | YST308B-MS880T |
| Measurement Range | 0–20,000 mg/L |
| Accuracy | ≤ ±2% FS |
| Output Signal | 4–20 mA DC |
| Power Supply | AC 220 V ±10%, 50/60 Hz |
| Operating Temperature | −10 °C to +55 °C |
| Relative Humidity | 10–90% RH (non-condensing) |
| Ingress Protection | IP65 |
| Installation Options | Immersion or Flow-Through |
| Brand | Dalian YST |
|---|---|
| Origin | Liaoning, China |
| Model | YST308B-MS880T |
| Measurement Range | 0–50 g/L (activated sludge), 0–400 g/L (silica) |
| Units | mg/L / ppm selectable |
| Accuracy | ±1–2% FS |
| Repeatability | ±1–2% |
| Operating Temp. | 0–50 °C |
| Max. Pressure | ≤10 bar |
| Flow Rate | 0.3–3 m/s |
| Output | 4–20 mA isolated |
| Communication | Modbus RTU/ASCII |
| Enclosure Rating | Transmitter IP65, Sensor IP68 |
| Power Supply | AC 220 V or DC 24 V |
| Weight | 6 kg |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST308B-MS880T |
| Measurement Range | 0–5000 mg/L SS, 0–80.0 °C |
| Accuracy | ±1.5% FS (SS), ±0.3 °C (Temp) |
| Resolution | 1 mg/L (SS), 0.1 °C (Temp) |
| Output | 4–20 mA & RS485 MODBUS RTU |
| Power Supply | 85–265 VAC ±10%, 50 ±1 Hz, ≤3 W |
| IP Rating | IP65 |
| Installation | Panel-mount / Wall-mount / In-line pipe mount |
| Operating Environment | −10 to +60 °C, ≤90% RH, non-corrosive, no strong magnetic field |
| Compliance | HJ 212–2017 (China Emission Monitoring Data Transmission Standard) |
| Brand | YST Instrument (Dalian) |
|---|---|
| Origin | Liaoning, China |
| Model | YST308B-MS880T |
| Measurement Principle | Transmittance-Scattering Hybrid Optical Method |
| Range | 0–5000 mg/L |
| Accuracy | ≤±2% FS |
| Resolution | 1 mg/L |
| Response Time (T90) | ≤10 s |
| Operating Temp. (Sensor) | −10–80 °C |
| Operating Temp. (Transmitter) | 0–50 °C |
| Humidity | ≤90% RH (non-condensing) |
| pH Compatibility | 2–12 |
| Output Signals | Isolated 4–20 mA analog + RS485 digital (Modbus RTU) |
| Power Supply | AC 220 V ±10% 50/60 Hz or DC 24 V ±10% |
| Enclosure Rating | Sensor IP68, Transmitter IP65 |
| Cleaning | Integrated Automatic Wiper System |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST308B-MS880T |
| Measurement Range | 0–2000 NTU / 0–500 mg/L (switchable) |
| Accuracy | ±1.5% FS |
| Power Supply | AC 220 V ±10%, 50 Hz ±1 Hz or DC 24 V ±10% (optional) |
| Output Signal | 4–20 mA isolated (load < 750 Ω) |
| Ingress Protection | IP65 |
| Operating Temperature | 0–60 °C |
| Data Logging | 1 month @ 5-min intervals (non-volatile memory, 10-year data retention after power loss) |
| Installation | Flow-through sensor |
| Compliance | HJ 212–2017 protocol support for environmental monitoring platform integration |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST308T-MS870Z |
| Measurement Principle | Infrared Light Scattering |
| Range | 0–50 g/L |
| Resolution | 0.01 g/L |
| Accuracy | ±1% FS |
| Sensor Operating Temp. | 0–60 °C |
| Host Operating Temp. | 0–50 °C |
| Humidity | ≤90% RH (non-condensing) |
| Power Supply | AC 220 V ±10%, 50/60 Hz |
| Sensor IP Rating | IP68 |
| Host IP Rating | IP65 |
| Response Time (T90) | ≤10 s |
| Output Signals | 4–20 mA (load ≤500 Ω), RS485 (Modbus RTU) |
| Brand | YST (Dalian Yist Instrument Co., Ltd.) |
|---|---|
| Origin | Liaoning, China |
| Model | YST809B-DO660 |
| Measurement Principle | Fluorescence Quenching at 470 nm excitation |
| Range | 0–20 mg/L (standard), 0–50 mg/L or 0–20,000 ppb (trace) |
| Accuracy | ±0.2 mg/L (0–20 mg/L) |
| Resolution | 0.01 mg/L or 1 ppb |
| Operating Temperature | −5 to 50 °C |
| IP Rating | IP68 |
| Submersion Depth | Up to 30 m |
| Compensation | Automatic temperature, barometric pressure, and salinity compensation |
| Output Interfaces | RS485 (Modbus RTU), 4–20 mA analog |
| Response Time (t₉₀) | ≤30 s |
| Fluorescent Cap Lifetime | 1–3 years |
| Drift | <1% per year |
| Brand | YST (Dalian Yist Instrument Co., Ltd.) |
|---|---|
| Origin | Liaoning, China |
| Model | YST809B-DO660 |
| Measurement Range | 0–20 mg/L DO / 0–200% saturation |
| Accuracy | ±0.1 mg/L (0–10 mg/L), ±0.2 mg/L (10–20 mg/L) |
| Temperature Compensation | 0–60 °C (automatic) |
| Response Time (t₉₀) | ≤60 s |
| Output Signals | 4–20 mA analog + RS485 digital (Modbus RTU) |
| Power Supply | AC 220 V ±10% or DC 24 V |
| Operating Environment | 0–50 °C, ≤90% RH (non-condensing) |
| Installation Options | Submersible, Flow-through, Pipe-mount |
| IP Rating | IP68 (sensor), IP65 (transmitter) |
| Brand | YST (Dalian Yist Instrument Co., Ltd.) |
|---|---|
| Origin | Liaoning, China |
| Model | YST809B-DO660 |
| Measurement Principle | Fluorescence Quenching (Pt-porphyrin sensor) |
| Excitation Wavelength | 470 nm |
| Emission Detection | Phase-shift analysis of red fluorescence |
| Range | 0–20 mg/L (0–20,000 ppb) |
| Accuracy | ±0.2 mg/L (0–20 mg/L), ±1 ppb + 2% (ppb range) |
| Resolution | 0.01 mg/L or 1 ppb |
| Response Time (t₉₀) | ≤30 s |
| Operating Temperature | −5 to 50 °C |
| IP Rating | IP68 |
| Submersible Depth | Up to 30 m |
| Compensation | Automatic temperature, atmospheric pressure, and salinity compensation |
| Output | RS485 (Modbus RTU), 4–20 mA analog |
| Sensor Lifetime | 1–3 years (fluorescent cap) |
| Drift | <1% per year |
| Calibration | Air-saturated water auto-calibration |
| Installation Options | Immersion, flow-through, buoy-mounted |
| Brand | YST |
|---|---|
| Origin | Liaoning, China |
| Model | YST809B-DO660 |
| Measurement Range | 0.00–20.00 mg/L DO |
| Accuracy | ±0.5% FS |
| Fluorescent Cap Lifetime | ≥12 months (typical operation) |
| Temperature Compensation | Automatic, 0–50 °C |
| Enclosure Rating | IP68 |
| Communication Interface | RS485 |
| Power Supply | AC 220 V or DC 12 V (solar-compatible) |
| User Interface | Chinese LCD, one-button calibration |
| Brand | YST (Dalian Yistek) |
|---|---|
| Origin | Liaoning, China |
| Model | YST909B-CH980 |
| Measurement Range | 0.01–200 mg/L as Cl₂ |
| Resolution | 0.001–0.1 mg/L |
| Accuracy | ±0.15% of full scale |
| Response Time (T90) | ≤120 s |
| Operating Temperature | 0–60 °C |
| Humidity Limit | <95% RH (non-condensing) |
| Sample Temp. | 0–45 °C |
| Sample Flow Rate | ≈500 mL/min |
| Sample Pressure | 0.1–0.3 bar |
| Power Supply | AC 100–240 V / DC 18–36 V |
| Power Consumption | 12–120 W |
| Enclosure Rating | IP65 |