Air Negative Ion Detector
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| Origin | USA |
|---|---|
| Manufacturer Type | Distributor |
| Origin Category | Imported |
| Model | AIC2MJ |
| Price Range | USD 700 – 1,400 |
| Airflow Rate | 200 cm³/s |
| Measurable Ion Polarity | Positive and Negative |
| Linear Drift Velocity | 40 cm/s |
| Display | Digital LCD |
| Measurement Range | 10 to 2 × 10⁶ ions/cm³ (extended range up to 2 × 10⁷ ions/cm³) |
| Response Time | ~10 s |
| Measurement Modes | Low / Medium / High Concentration |
| Minimum Detectable Concentration | 10 ions/cm³ (100 ions/cm³ in extended low-noise mode) |
| Operating Temperature | −20 °C to +60 °C |
| Relative Humidity Limit | ≤99 % RH (non-condensing) |
| Power Supply | 9 V alkaline battery |
| Dimensions | 165.1 × 93.98 × 76.2 mm |
| Weight | 420 g |
| Origin | Japan |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | COM3400W |
| Pricing | Available Upon Request |
| Brand | PKSAIR |
|---|---|
| Origin | Japan |
| Model | COM-3700 |
| Measurement Principle | Gerdien Capacitor Method |
| Ion Polarity | Simultaneous Positive & Negative Ion Detection |
| Mobility Range | 0.00269 – 5.38 cm²/V·s (equivalent to ~2000 cm²/V·s in standard mobility scale) |
| Measurement Modes | Auto (dual-polarity) and Manual (single-polarity) |
| Concentration Range | R1: 0–8,000 ions/cm³ |
| R2 | 0–50,000 ions/cm³ |
| R3 | 0–500,000 ions/cm³ |
| R4 | 0–5,000,000 ions/cm³ |
| Display | 16-character × 2-line STN LCD with backlight and ON/OFF control |
| Data Logging | Internal memory for time-stamped measurements |
| Interface | RS-232C output for PC connectivity |
| Compliance | Designed for field-deployable environmental ion monitoring per JIS B 7951 and ISO 16000-22 (indoor air quality — measurement of airborne ions) |
| Brand | TIANHANG CREATE |
|---|---|
| Origin | Tianjin, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | ZC51 |
| Pricing | Available Upon Request |
| Power Supply | 30W Solar Panel + 7Ah Low-Temperature Lead-Crystal Battery |
| Enclosure Rating | IP68 |
| Structural Material | Aerospace-Grade Aluminum Alloy (Anodized & Sandblasted) + 304 Stainless Steel Mounting Mast (2.4 m) |
| Data Logger | Ultra-Low-Power Unit with 4× Analog Inputs, 4× RS485 Ports, 4× Image Interfaces, 8GB RAM, 64GB Local Storage, GPS/Beidou Positioning, Remote Firmware Update,断点续传 (Resume-on-Interruption), Multi-Retry Transmission, Voltage & Log Telemetry |
| Negative Ion Sensor | Detection Range: 0–500,000 ions/cm³ |
| Resolution | 10 ions/cm³ |
| Sampling Rate | 50 samples/sec |
| Accuracy | ±15% of reading |
| Ion Mobility | 1 cm²/(V·s) |
| Avg. Power | 1.7 W |
| Ambient Temp Sensor | -40–85°C, ±0.3°C @25°C (typ.), 0.01°C res. |
| RH Sensor | 0–100% RH, ±3% RH (10–80% RH, non-condensing), 0.01% RH res. |
| Optional Add-ons | 8-MP All-Weather Phenology Camera (IP68), Barometric Pressure Sensor (300–1100 hPa, ±0.5 hPa), Anemometer (0–60 m/s, ±(0.3+0.03v) m/s), Wind Vane (0–360°, ±3°) |
| Brand | Tianwei Environmental (TW) |
|---|---|
| Origin | Shandong, China |
| Manufacturer | Yes |
| Model | TW-FZ3 |
| Measurement Principle | Asymmetric Capacitive Collector with Gerdien Tube Design |
| Negative Ion Range | 0–500,000 ions/cm³ (typical ambient range) |
| Resolution | 1 ion/cm³ |
| Accuracy | ±10% of reading (calibrated against NIST-traceable reference ion generator) |
| Temperature | −40°C to +60°C (±0.3°C) |
| Humidity | 0–100% RH (±0.3% RH, capacitive sensor) |
| Wind Direction | 0–360° (±2°, ultrasonic anemometer) |
| PM2.5 | 0–1000 µg/m³ (±10%, optical scattering) |
| Noise | 30–120 dB(A) (±1.5 dB, condenser microphone) |
| Oxygen Concentration | 0–100% vol (±3% vol, electrochemical sensor) |
| Data Storage | Local SD card or embedded flash — 1 year of raw 1-min interval data |
| Communication | GPRS / LTE Cat-1 / Fiber-optic (TCP/IP) |
| Power Supply | 220 VAC ±10% or optional solar + battery (12 VDC nominal) |
| Display | 2 m × 1 m P10 monochrome LED matrix (36 modules, 32 cm × 16 cm each) |
| Structural Frame | Dual carbon-steel uprights, flanged modular assembly, rated for Typhoon Level 15 (≥45 m/s) |
| Enclosure Rating | IP65 |
| Compliance | Meets GB/T 18801–2022 (Air Ion Detector General Requirements), HJ 93–2013 (Ambient Air Particulate Matter Monitoring), and supports HJ 212–2017 (Data Transmission Protocol for Environmental Monitoring) |