Multigas Detector & Pump | USA NIST Calibration

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  • Regular price $355.00

Model: FD-4S
Data Logging: Click here
User Manual Detector: Click here for PDF
User Manual PUMP: Click here for PDF
Quick Start Guide: Click here for PDF


  • 🎆 DETECTOR + PUMP: High-quality sensors that detect oxygen (O2), carbon monoxide (CO), hydrogen sulfide (H2S), and combustibles (LEL). Comes FACTORY-CALIBRATED. Turn ON and GO.
  • 🌈 COLOR DISPLAY: Color screen and graph functions allows for easy and intuitive operation.
  • 📲 DATA LOGGING: Connects to a computer for data retrieval, stores 500 alarm records. USB real time data acquisition.
  • 💪 STRONG: Robust design constructed with high-strength ABS and anti-slip grip rubber. Waterproof, dust-proof, and explosion-proof exceeding Exib IIB T3 Gb.
  • 🕵️ TRUSTWORTHY: ** 1-year limited warranty ** Arrives with calibration and QA certificates ** Product tested and verified in the USA ** 100% quality guaranteed **

Details: A professional MULTI-GAS detector + PUMP by FORENSICS with advanced specifications. The pump allows for point probe or continuous sampling. 32-bit microprocessor with color LCD and graphing capability. For industrial usage such as utility workers, refinery workers, firefighters, maintenance engineers, those who spend time in sewers and waterworks, underground storage tanks, oil rigs, tanks, and silos in the maritime industry.

Includes: Gas detector, English manual, computer USB charging cable, calibration cover, and USA NIST calibration certificate. The pump unit comes with the pump, stainless probe, 3 ft silicone tubing, USB charging cable, and English manual.

Detector Specifications: 
Sampling method: natural diffusion (no pump)
Combustible gas (LEL) detection: 0 - 100% with 1% resolution
Oxygen (O2) detection: 0 - 30% with 0.1% resolution
Carbon monoxide (CO) detection: 0 - 999 ppm with 1 ppm resolution
Hydrogen sulfide (H2S) detection: 0 - 100 ppm with 1 ppm resolution
Accuracy: ≤ ± 5% F.S.
Response time: ≤ 30 sec
Working environment: -20℃ ~ 50℃, < 95% RH (no dew)
Power source: DC 3.7V Li-on battery, 2000 mAh
Gas sensor life: 2 - 3 years
Explosion-proof grade: Ex ib IIB T3 Gb
Protection grade: IP65
Weight: 400 g (with battery)
Dimensions: 130 mm × 67 mm × 30 mm (L × W × H)

Pump Specifications: 
Temperature: -10℃ ~ 60℃
Humidity: < 95% RH non-condensing
Voltage: DC 3.0V Li battery, 1800 mAh
Flow rate: 0.5 LPM (500 cc/min)
Noise: < 60 dB
Weight: 140 g (with battery)
Dimensions: 65 mm x 30 mm x 225 mm
Probe thread: M6 x 0.75 mm