Gas-Pro TK


Gas-Pro TK dual range portable monitor measures the concentration of flammable gas in inerted tanks. Available for methane, butane and propane, Gas-Pro TK uses a dual IR sensor – the best technology for this specialist environment, which means Gas-Pro TK dual IR:

  • Auto-ranges switch between %vol and %LEL measurement, so always operating to the correct parameter.
  • Measures gas in high %vol as well as %LEL concentration, which single IR sensors can’t
  • Isn’t inhibited by high hydrocarbon concentrations unlike catalytic bead sensor

Gas-Pro TK keeps you up-to-the moment with oxygen concentrations in the tank; telling you when the oxygen levels are;

  • Low enough to load and store fuel safely;
  • High enough for safe tank entry.

Tanks can be sampled quickly from their top, middle or base, due to an integrated pump which draws samples through a line up to 30m long.

Offering detection of up to five gases in a compact and rugged solution, Gas-Pro TK has an easy-to-read top mount display, combining ease of use and user focused features. At 340g, it is light enough to clip to your belt or overalls, so it easy for the technician to keep with them during their working day.

Personal protection monitor

Gas-Pro TK is an extension of the Gas-Pro range. Therefore, in addition to its superb tank check capabilities, it also offers the full personal gas detection and confined space pre-entry check functionalities provided by other Gas-Pro detectors.


Size43 x 130 x 84mm (1.7 x 5.1 x 3.3ins)
Weight340g (11.9oz)
AlarmsAudible 95dB
Visual – all angle dual red/blue LEDs
Vibrating alert
DisplayBright top mounted display can be viewed while worn
Data logging125hr at 10-second intervals (45,000 logs)
Event logging1000 events
BatteryRechargeable Li-ion, 13 hour typical runtime (4 sensors, pump running)
Typical charge time 7.5hr
SamplingInternal pump with 30m draw
Operating temperature-20°C to +55°C (-4°F to +131°F)
Humidity10 to 95% RH non-condensing
Ingress protectionIndependently tested to IP65 and IP67
ApprovalsIECEx: Ex db ia IIC T4 Gb Tamb -20°C to +55°C
ATEX: II 2 G Ex db ia IIC T4 Gb Tamb -20°C to +55°C
UL: Class 1, Division 1, Groups A, B, C, and D UL 913, UL 60079-0 and UL 60079-11
INMETRO: Ex db ia IIC T4 Gb Tamb -20°C to +55°C
Marine Equipment Directive: MED 1500009
ComplianceFCC and CE. Complies with EMC Directive 2014/30/EU, EN50270 and EMC FFC CFR 47 Part 15, ICES-003
Crowcon Connect Compatible?Yes



Below is a small selection of the accessories available for the Gas-Pro TK.

Multi region power supply

CH01016.5V power supply for North America, Europe, UK and Australia type outlets

Charging lead

Charging lead


For connecting power supply to Gas-Pro TK. Can be mounted inside cradle charger (CH0105)

Charging lead

Cradle charger


Requires multi region power supply (CH0101, CH0106 or CH0107) and charging lead (CH0102)

5 way charger

5 way charger


Charge up to 5 units from a single power outlet. For North America, Europe, UK and Australia type outlets. Requires one charging lead for each Tank-Pro (CH0102)

Vehicle charging adapter


6.5V power supply for use with 12V vehicle power outlets

Chest harness plate

Chest harness plate


For attaching chest harness straps (CH0507) to Tank-Pro. Chest harness plate fits in place of Tank-Pro’s alligator clip.

Chest harness straps

Chest harness straps


Set of harness straps for carrying Tank-Pro on front of the chest. Requires chest harness plate (CH0506)