Product Name: Portable Hydrogen Sulfide Detector-Hydrogen Sulfide Concentration Measurement Alarm-Gas Detector, Research and Development Sales[Onetest] Model NO.: EST-101-H2S-100ppm Type: Electrochemical Gas Analyzer Gas: H2S Certification: CE Portable: Portable Customized: Customized Brand: Cestsen Trademark: CESTSEN Transport Package: Alloy Box Specification: 120*60*35mm Origin: China Product Description Portable hydrogen sulfide detector-hydrogen sulfide concentration measurement alarm-gas detector, research and development sales[ONETEST]EST-101-H2S hydrogen sulfide detector is a portable gas concentration measuring instrument. It adopts high-precision circuit design. The core adopts imported sensor chip. After Wanji Technology develops calibration, signal amplification, calibration calibration and strict testing, it is delivered to the factory.The instrument is designed and produced in accordance with relevant national standards:GB/T18883-2002 GB3095-1996GB50325-2010GB50325-2001GB12358-2006 Mainly used:Disease control medical public places, occupational health and health testingNatural gas, liquefied gas application placeCoal minePetrochemicalIndoor air quality testing agencyFeatures:High quality sensor for stable and reliable performance.External power supply DC5V, built-in rechargeable battery.Intelligent design, automatic detection at startup, no operation, zero calibration is convenient.It has the function of restoring factory settings to prevent misoperation.Supports ppm and mg/m3 unit conversion.Configuration method LCD liquid crystal display technology, can display gas type, unit, concentration value, 1 hour and 8 hour average, date and time.The instrument has a weighted concentration value viewing function for 1 hour, 8 hours, and time period, which is in line with the national indoor air quality testing standard.With alarm function, it can set high and low alarm value, two-level sound and light alarm, and two high-brightness LED lights remind users to pay attention when alarming.The instrument is small and light, and can be easily placed in a pocket or bag.ISO9001 quality certification, ISO14001 environmental system certification, can pass the national measurement certification.Optional sampling pump for safe measurement of closed spaces such as pipes, tunnels and test chambers.Range selection:ModelGasRangeppmdisplay resolutionppmSensitivityppmPrecisionResponse timeT90EST-101-H2S-100hydrogen sulfide0-1000.10.1±5%F.S.<35SElectrical performance:External power supply: 5VDC/500mABattery type: lithium ion batteryBattery voltage: 3.7V (charge limit 4.2V)Battery capacity: 1600mAhShutdown current: <0.1mAStarting current: <10mAAlarm current: <50mAProtection level: dustproofAlarm mode: Level 2 sound and light alarmAlarm error: ≤ ± 10% alarm set valueData storage: noneSignal output: noneDimensions: 120*60*35mmMachine weight: ≤250g (with battery)Test object: hydrogen sulfideDetection method: diffusionDetection principle: ElectrochemistryWorking temperature: -20 ° C -45 ° CWorking humidity: 0-85% RHDisplay mode: LCD screenAir pressure range: 860-1060hpaWarm-up time: 120 secondsResponse time: T90<35SService life: 2-3 years (in the air)Zero drift: ≤ ± 2% FS / 6 monthsSpan drift: ≤ ± 5% FS / 6 monthsRepeatability: ≤±2%Product list1. EST-101 gas detector host..........................................................................................12, universal 5V power adapter ........................................................................................13, the instruction manual .................................................................................................14, the factory inspection report.........................................................................................15, calibration cap / protective cap.....................................................................................16, portable suitcase.......................................................................................................... 1