Helium Analyzer | Leak Detection | USA NIST Calibration

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  • $895.00
  • Regular price $1,995.00

Model: FD-311-He
User Manual: Click Here
Blog Article: Click Here


  • ⚛️ ACCURATE: Helium (He) gas detector with a range of 0 - 100% and 0.1% resolution with a built-in pump.
  • 🏕️ QUALITY: Thermal Conductivity Sensing with accuracy: ≤ ± 2% F.S. Zero and span calibration options.
  • 🔔 ALARMS: Adjustable audio, visual, and vibration alarms alert when preset levels are reached.
  • 💪 STRONG: Shockproof, water-resistant, dust-proof, and explosion-proof. 
  • 🕵️ TRUSTWORTHY: ** 1-year limited warranty ** Arrives with calibration and QA certificates ** Product tested and verified in the USA ** 100% quality guaranteed **

Details: This is a professional Helium gas analyzer by Forensics Detectors. Equipped with an advanced thermal conductivity sensor and a built-in pump. Comes factory-calibrated with a NIST traceability certificate. The detection range of He gas is 0 - 100% within 20 seconds at an accuracy of +/- 2% full-scale. Comes factory NIST calibrated from Los Angeles, CA. The detector has a DC3.7V Li-battery 2000mAh that allows for over 6 hours of continuous use. Includes advanced features such as high-resolution LCD, backlight high-resolution LCD, calibration features, and a built-in pump to draw your sample and increase response time and ensure constant pressure and flow for the most accurate He readings. 

This helium gas analyzer can draw a gas sample to analyze gas mixes for breathing, trimix scuba, compressed gas, industrial applications, welding, and research & development. It also comes with a probe and tubing to be used as a Helium gas leak analyzer used in various equipment including vacuum equipment, spectrometers, and cryogenics. Since helium is light, it is an excellent tracer gas and can penetrate leaks or compromised seals to then be detected and ultimately find a leak. 

Helium is a gaseous compound that is colorless, odorless, and tasteless. It can be isolated from natural gas when the other compounds are liquefied at a low temperature and high pressure - the helium remains as a gas. It finds uses in welding for metals, rocket propulsion, meteorology, cryogenics, breathing operations, technical diving, and scuba.

Included: Gas detector, English manual, USB charging cable, Hard Carry Case, and USA NIST calibration certificate.

Calibration Kit (sold separately):  
Calibration Gas (He)
Calibration Gas Regulator (C10)
Calibration T-piece & Tubing
Bump Gas (Helium)

Accessories sold separately):  
Gas Detector Stand

Calibration Service (sold separately):
Gas Detector Calibration Service (single gas)


Helium Gas (He) detection: 0 - 100%  with 0.1% resolution
Accuracy: ≤±2% F.S.
Response time: ≤ 20 sec
Display: High-Resolution Color LCD
Alarms: LED, sound, and vibration
Operating temperature: 0F - 122F
Humidity: less than 95% RH non-condensing
Operating voltage: DC3.7V Li-battery 2000 mAh
Working time: > 6 hours
Charging time: 4 hours
Sensor life: > 10 years
Recommended calibration period: 6-12 months
Protection category: IP65
Explosion Proof: Ex ib IIB T3 Gb
Dimension/Weight: 9.5 x 2.5 x 1.7 inches, 440grams
Pump Noise: <70dB
Pump Flow: 0.5 LPM
Inlet Air Barb: 5mm diameter stainless steel barb
Recharge: USB Charger (5V @ 1A) with USB mini cable

100% QA by sensor and gas detector engineers
Product tested and verified in the USA