Mobile multi-gas monitoring station Detective+

Price: Liên hệ

Model Detective +
Manufacturer Crowcon 
Power supply
Condition Còn hàng
Warranty 12 tháng

I. Specification Detective+ portable multi-gas monitoring station


  • Rugged and robust, the Detective+ Crowcon area gas monitor features fixed or folding legs and a protective frame that allows stacking for easier storage.
  • Available with an optional internal pump for flexible sampling, alarms are announced with a loud sound, while multiple beacons ensure 360-degree visibility.
  • Existing Detective+ Crowcon Mobile multi-gas monitoring station can also be equipped with infrared (IR) sensors, providing  CO2 detection or allowing for higher flammable gas monitoring. Infrared sensors also provide immunity to the toxic effects that standard flammable gas sensors can suffer. This extends sensor life and adds measurement reliability in tough applications such as water treatment plants and some chemical or hydrocarbon processing facilities..
Mobile multi-gas monitoring station Detective+

Versatile and user-friendly:

  • Infrared sensor available - allows Detective+ Crowcon Mobile multi-gas monitoring station to sample flammable gas and carbon dioxide levels. Unaffected by poisoning and has a very fast response time.
  • Integrated pump option - provides sampling flexibility
  • Integrated display - provides clear information and allows gas hazard identification.

Rugged design and tripod:

  • Increased sensor aperture - prevents water from entering
  • Optional folding legs - allows stacking for easier storage and transport
  • IP65 specifications - for use in challenging environments
  • Tripod Design - Increases physical visibility of the unit and is the perfect height to allow 360 air intake.

Loud and clear alarm:

  • 25 NET detective or 12 Detective+ units with cables can be networked together forming an effective perimeter defense - Units on the network can be spaced up to 100m apart and if one alarms, all unit on network alarm.
  • Smart and flexible devices send flash alarms faster - ensuring that the device is working properly and that they are protected.
  • Sound and visual confidence score
  • Vivid red LED cluster for visual alarm
  • Multiple beacons - ensures 360 0 visibility
  • Detective+ is now wireless.
  • Detective Wireless is a wireless module that gives you a range of up to 100 meters excluding the use of cables.
  • The Wireless Detective portable multi-gas monitoring modules can also be used as repeaters giving you a stronger signal in built-up areas and where signal strength is problematic.
***View more of Crowcon's wireless portable gas monitoring and measuring devices at:

II. Specifications of mobile multi-gas monitoring station Detective+


Size 640 x 455 x 455mm (25.2 x 17.9 x 17.9ins)
Weight 7.5kg (19lbs)
Alarms Three large, top mounted red LED clusters and a single red LED on front panel.
Alarm mode: LED clusters flash in quick succession. LED clusters of linked Detectives repeating the alarm, flash slower than LED lights on those Detectives sensing the hazard
Normal working: Slow flashing green LED
Battery low: Rapid flashing green LED
Wailing alarm, omni-direction siren, 104 dBA at 1m
Display High contrast LCD with back light. Values and units for up to 4 gases displayed simultaneously at current, TWA or peak levels, low battery, real time and elapsed time calibration and configuration data also displayed.
Data logging 125hrs at 10-second intervals (45,000 logs)
Event logging Alarm, over range, calibration, bump, on/off, TWA, 1000 events
Battery Standard 6V, 7.2Ah, sealed lead acid battery pack
Optional 6V, 12Ah high capacity pack
Up to 36 hours with flammable/ CO2 sensor fitted with 7.2Ah battery
Up to 60 hours with optional 12Ah battery pack
Typical response times Methane 20s, oxygen 10s, typical toxic gas 20s, IR 20s
Operating temperature -20°C to +50°C (-4°F to 122°F)*
Expected sensor life Flammable 5 years, toxic 3 years (typical), oxygen 2 years minimum, IR>5 years
Humidity 15-95% RH non-condensing
EMC Directive 2014/30/EU EN50270
Ingress protection IP65
Approvals Europe: ATEX II 2G Ex ib d IIC T4 (Tamb -20°C to +50°C)
International: IECEx Ex ib d IIC T4 (Tamb -20°C to +50°C)
Standards EN50014, EN50018, EN50020, EN50104, EN45544, IEC60079-0/-1 IEC60079-11
PC Interface Via RS232 lead. Portables PC software can be used to set alarms, clock, datalogging interval and password, manages datalogging giving graphical display of instrument log file and allows to export to spreadsheet.
Calibration Quick calibration using internal menu command, Portables PC
Accessories Baffle plate, interconnecting leads, RS232 communications lead, Detective NET
Sampling Internal electric sampling pump option, manual aspiration
Linked Detectives With cable connection, up to 12 units can be linked to provide perimeter or area monitoring
Crowcon Connect Compatible? No
**Toxic and Oxygen sensors RH Specifications vary, consult Crowcon for specific operating humidities.

Gases and Ranges

Required ranges and alarms may vary by country and application and these can be configured as required.
Gas Range Typical Alarms
Flammable gas  0-100 LEL 20% LEL
Oxygen (O2)  0-25%  19% & 23%
Hydrogen sulphide (H2S)  0-50 ppm 10 ppm
Carbon monoxide (CO)  0-500 ppm 30 ppm
Sulphur dioxide (SO2)  0-10 ppm  2 ppm
Chlorine (Cl2)  0-5 ppm  0.5 ppm
Nitrogen dioxide (NO2)  0-10 ppm  2 ppm
Phosphine (PH3) 0-5 ppm  0.5 ppm
Ammonia (NH3)  0-50 ppm  25 ppm
 Ammonia (NH3)  0-1000 ppm n/a
Hydrogen (non-flammable levels)  0-2000 ppm n/a
Hydrogen cyanide (HCN)  0-25ppm  10ppm
Hydrogen chloride (HCl)*/+  0-10 ppm  5ppm
Chlorine dioxide (ClO2)+  0-1 ppm  0.1 ppm
Hydrogen fluoride (HF)+  0-10 ppm  1 ppm
Ethylene oxide (C2H4O)*  0-10 ppm  5 ppm
Volatile organic*/+ 1-100 ppm n/a
* One biased sensor per Detective+ '+ Reactive gas, care required during sampling, contact Crowcon for details.

Infrared Sensors

Infrared (IR) sensors for flammable gas can be supplied as a single range, 0-100% LEL, utlising a single display channel, or as a dual range, 0-100% LEL/0-100% volume, which then occupies two display channels. Carbon dioxide sensors are supplied as 0-5% volume. Only one IR sensor can be fitted, and IR sensors can only be used in combination with oxygen and toxic sensors.
Gas Range Typical Alarms
Flammable gas  0-100 LEL 20% LEL
Flammable gas  0-100% v/v  None
Available for methane, propane, butane or ethylene
Carbon dioxide (CO2)  0 to 5% v/v 0.5 and 1.5% v/v
  ***Product main path: Detective+ Multi-Gas Monitor

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