The PHD6 multi-gas detector is extremely versatile, with 5 sensor ports, up to 6 channels of detection, and 19 sensor options including electrochemical, LEL, PID and Infrared. The PHD6 gas monitor is very durable made of polycarbonate frame with rubber overmold. While still remaining user friendly with it’s one button feild use for basic operations. A manual sample draw kit is included and an optional motorized sample draw pump is available.

Features & Benefits

  • 5 sensor ports and 19 sensor options
    • With 19 sensor choices, including PID, IR-CO2,* IR-CH4,* conventional LEL, oxygen and 15 different toxic gas sensors including Duo-Tox, the Biosystems PHD6 can be configured for just about any use
  • PID sensor option
    • PID sensor monitors for hundreds of known VOCs
  • IR CO2 sensor option
    • For breweries, wineries and anywhere accumulations of CO2 can be an issue
  • Electrochemical sensor options
    • Choose from 14 different electrochemical toxic gas sensors
  • LEL sensor option
    • A catalytic hot-bead LEL sensor is available for the detection of combustible gases and vapors
  • IR CH4 sensor option
    • Poison-proof technology for use in situations where a conventional LEL sensor can fail
  • Durable
    • The Biosystems PHD6 is enclosed in a solid polycarbonate case with a TPE (rubber) overmold, so it’s both tough and easy to handle
  • Interchangeable battery packs
    • Both Li-Ion and Alkaline battery packs offer up to 24 hour run times
  • Dual audible alarms that stand out!
    • The new dual audible alarms in the Biosystems PHD6 are unlike anything you’ve ever heard from a gas detector — and rated at 92 dB
  • Visible alarms
    • Front and side mounted LED alarms are highly visible


  • Confined space
  • Extreme environment
  • Explosion
  • Gas, vapors, smoke
  • Refineries
  • Chemical processing
  • Water and Wastewater facilities
  • Semiconductor manufacturing
  • Rail car and tank truck cleaning
  • Resin and nylon production
  • Underground storage
  • Sewer entries
  • Cable vaults
  • Agriculture

Technical Specifications

Product Specification Description
Dimensions Instrument only: 17.1 x 8.3 x 6.4 cm (6.75″ x 3.25″ x 2.50″ in)
Instrument with pump installed: 21.6 x 8.3 x 6.7 cm (8.50″ x 3.25″ x 2.63″ in)
Weight Instrument only: 18oz/510g
Instrument with pump installed: 23oz/652g
Alarms Two peak alarms, TWA and STEL for toxic channels
Audible Alarm Multi-tone audible alarm rated at 92dB
Vibrating Alarm Optional
Visual Alarm Three visible bright red LED alarm lights (front and side mounted)
Low Battery Alarm Standard
Display Displays readings from up to 6 gases on a top-mounted graphics type LCD
Display Backlight Automatically activated in dark or dimly lit areas
Controls One button operation for daily usage including automatic calibration
Built-in Event Logger Stores specific data from alarm events – Stores last 20 events
Black Box Data Recorder Standard: stores a minimum of 63 hours of readings and other data
Housing Compact and rugged, solid polycarbonate case with a TPE (rubber) overmold, so it is both tough and easy to handle
Durability (IP Rating) Meets IP65 standard for water protection
Datalogger upgrade optional Provides convenient and easy downloading to a computer. The built-in IrDA port allows instruments with the Datalogger upgrade to be downloaded in the field to retrieve data on calibrations and exposure levels.
Slip-on pump upgrade optional Software-controlled pump, powered by the PHD6 battery, automatic low flow alarm, automatic leak test before every use
Safety Certifications SGS USTC Class 1 Division 1 Groups, A, B, C, D Temp code T3C (Approved to UL-913)
SGS/USTC Class II, Division 1, Groups E,F,G
ATEX (DEMKO) Ex d ia llC 150C (T3)
IECEx Ex d ia llC 150C
CSA Class l Division l Groups A, B, C, D Temp Code T3C
NEPSI (Chinese) Approval Ex d ia llC 150C (T3