Welcome to the website of Hunan Gri Instrument Co., Ltd

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Hunan Gri Instrument Co., Ltd

Address:5/F, Bldg. 5, Xinggong Int'l Ind. Zone, No. 100, Luyun Road,
Yuelu Dist., Changsha, Hunan, China (Mainland)


  • WASP-D1-P-CH3Br single gas detector
WASP-D1-P-CH3Br single gas detector
Product Type:

Hot Line:0731-88860558

Product Description

Company Information

GRI Instrument, the professional manufature of gas sensor and gas detector since 2009.

Our office and factory are both located in Hunan Changsha, China, Welcome to China, and welcome to our company.

We aim at suppy the Excellent quality, best service products.


We will have more cooperation once you learn us more.



Main Feature

·Small size, light weight, easy to carry

·High accuracy, short response time, wide measurement range

·Large-screen color LCD graphic display, more comfortable and humane

·English menu display

·USB rechargeable lithium battery, long life, fast and easy charging

·Built-in large capacity memory, can store large amounts of measurement data

·Powerful sound and light alarm, vibration alarm variety of alarm mode

·Water and dust-proof, explosion proof, rugged enclosure drop resistance protection, high degree of protection

·Support USB and the upper machine communications, the upper machine Calibration

·Warning lights flashing, convenient to work in the dark

·PPM and mg/m³switch,convenient user to reading


  Product type:  Diffused toxic gas detector with data storage

   dimension:     110*68*38mm

   Weight:        200g

   Measurement Type: More than 20 kinds of toxic gases, the sensor can be replaced

   battery:         Built-in rechargeable lithium battery

   Operate time:   full power longer than 8 hours

   Charging time:  less than 4 hours

   Display     :       TFT color screen

   Alarm method:    Sound alarm, the red LED lights alarm, vibration alarm

   Keyboard :        4 keys

   Sampling way:    diffusion

   date record:     30 seconds interval can be stored more than four months of record

   calibrate:       2 Point calibration, calibration values can be set

   Operating temperature:   -20--60 ℃

   Operating humidity:   0-95% relative humidity,(non-condensing)

   Warranty:        1 year


Petroleum, petrochemical, chemical, environmental, paper, paints, coatings, mining, electroplating, textile, coking plants, indoor air quality monitoring, environmental monitoring systems, health monitoring systems. Can be measured gas species: CH2O, TVOC, CO, H2S, NO2, NO, SO2, CL2, NH3, H2, PH3, O3, F2, HF, HCL, HBR, C2H4O, COCL2, SIH4, CLO2, HCN, C2H4, SF6 and combustible gases.