Portable Gas Detectors

Gas Leak Detector XP-702III


Inspection for leaks from gas outlets, rubber tubes and pipe joints of gas pipes and air conditioners.



  • Smaller and Lighter. Reduced 50% in volume and 30% in weight from the conventional models.
  • Easy-to-see LCD with display of battery life and sound effect settings of alarm and operation.
  • Easy to notice the alarm by flashing 2 alarm lamps at hand.
  • As little as 10 ppm can be detected(30ppm for Freon gas).
  • Capable of Detecting 2 Gases (Target models: XP-702III-A, XP-702III-F)


Model XP-702III-A XP-702III-B XP-702III-F
Gas Detected 2 types of combustible gas (switchable) One type of combustible gas CFC and combustible

gas (switchable)

Detection Principle Hot-wire semiconductor
Detectable Leak Rate Town gas, LPG, ets.: 3.3 x 10-6Pa.m3/s
CFCs: [R407C] 12.4g/year [R410A] 11.2g/year
Detectable Concentration 10ppm (CFCs: 30ppm)
Response Time Within 3 seconds (except for CFCs)
Power Source Size AA alkaline battery (LR6) x 2
Battery Life Approx. 12 hours (with size AA alkaline batteries at 25 °C)
Explosion-proof Structure Ex ia II BT3 (intrinsically safety)
Operating Temperature


-20 to +50 °C, less than 85%RH (with no condensation)
Dimensions W38 x H130 x D32 mm (excluding protrusions)
Weight Approx. 190g (including batteries and soft case)
Accessories Soft case, Drain filter, Filter element, Gas probe, Dust filter, Hand strap,

2 x AA alkaline battery, Instruction manual

Optional Accessories Annealed copper tube, Gas collector, Sampling hose, etc.



Selectable Gases

acethylene【C2H2】, ammonia【NH3】, isobutane【i-C4H10】, isopropyl alcohol【(CH3)2CHOH】, carbon monoxide【CO】, ethylene【C2H4】, LPG, vinyl chloride【CH2=CHCI】, gasoline, xylene【C6H4(CH3)2】, oxidized ethylene【CH2CH2O】, propylene oxide【C3H6O】, cyclopentane【C5H10】, 1,2-Dichloroethane【ClCH2CH2Cl】, dimethyl ether【C2H6O】, hydrogen【H2】, city gas, propane【C3H8】, propylene【C3H6】, benzene【C6H6】, n-pentane【CH3(CH2)3CH3】, methane【CH4】, R-22【CHClF2】 etc.

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