Product Description:

YJJ PGM-7340 ppbRAE 3000+PID Photoionization VOC detector for Environmental Monitoring

Features:

I. Core Parameters

1. Sensor (PID UV lamp, optional)

10.6 eV (standard): 1 ppb - 10,000 ppm, resolution 1 ppb

9.8 eV: 0.01 ppm - 5,000 ppm, resolution 10 ppb

11.7 eV: 0.1 ppm - 2,000 ppm, resolution 10 ppb

Response time T90: ≤ 2 seconds

Accuracy: 10 - 2000 ppm (isobutylene standard gas) ± 3%

Built-in database: 220 + types of VOC correction coefficients, can directly read the corresponding concentration

2. Sampling and Display

Sampling method: Built-in pump suction type, flow rate 450 - 550 cc/min, longest 30-meter sampling tube

Display: Large-screen LCD, Chinese/English, real-time value, TWA, STEL, peak value, temperature and humidity

Alarm: 95 dB buzzer + red LED; adjustable TWA/STEL/high-low alarm

3. Environment and Physics

Temperature: -20℃ - +50℃

Humidity: 0 - 95% RH (no condensation)

Protection grade: IP66 (on power-on) / IP67 (off), dust-proof, waterproof, splash-proof

Size / Weight: 25.5×7.6×6.4 cm / 738 g (including lithium battery)

Explosion-proof certification: UL/cUL/CSA/ATEX/IECEx Ex ia IIC T4 (intrinsically safe explosion-proof)

4. Data and Battery

Storage: 260,000 points (1-minute interval approximately 2 months)

Communication: USB/RS232, optional Bluetooth/Mesh wireless real-time transmission

Battery: 4.2V/3300mAh lithium battery, continuous operation 16 hours; optional 4×AA alkaline batteries

II. Main Applications (Broad-spectrum VOC Detection)

Environmental monitoring

VOC screening and traceability of unorganized emissions at chemical industrial parks and factory boundaries

Odor / Volatile Organic Compound monitoring at sewage treatment plants and landfill sites

Quick screening and location of pollution hotspots in soil / groundwater contaminated sites

Industrial safety

VOC leakage inspection in petroleum and petrochemical, chemical, coating, printing, rubber workshops

Early warning of trace leakage in storage tank areas, loading docks, reaction vats (ppb-level sensitivity)

Occupational health: assessment of TWA/STEL exposure in the workplace to ensure personnel safety

Emergency rescue

Quick detection at dangerous chemical leakage, fire, explosion sites

Quick identification and concentration classification of toxic and harmful gases, guiding evacuation and disposal

Indoor air and quality

TVOC detection in building decoration, furniture release of formaldehyde / benzene series substances

Micro-VOC control in semiconductor, pharmaceutical, electronic cleanrooms

III. Key Features

Ultra-high sensitivity: 1 ppb detection limit, 1000 times higher than ordinary VOC detectors

Broad-spectrum detection: covering 220 + types of VOC, multi-purpose use

Fast response: ≤ 2 seconds, suitable for dynamic leakage and emergency scenarios

Intrinsically safe explosion-proof: safe use in 0 zone hazardous environment

Wireless transmission: real-time data upload, remote monitoring and command

Specifications: