Feature:1. APPLICABLE OCCASION: Widely used in metallurgy, power plants, farms, mines, chemicals, scientific research, medicine treatment, pharmaceuticals, environmental protection and other fields.2. LCD DISPLAY: Handheld ammonia gas detector, equipped with large LCD display, easy to read, 0.1PPM resolution, response time less than 120 seconds, high reliability.3. ACCURATE MEASUREMENT: Using accurate detection technology and sensor chip, the measurement range is 0100PPM, and it supports continuous quantitative analysis of ammonia concentration.4. AMMONIA GAS DETECTION: Using high accuracy electrochemical principle sensor, quick response, high accuracy, its stability, and good repeatability.5. ALARM FUNCTION: Sound and light dual alarm, alarm value can be set, one alarm sound is divided into 80 decibels, which can prompt you to leave the place where the ammonia concentration is too high.Specification:Item Type: Ammonia DetectorMaterial: ABSModel: AR8500Battery: Rechargeable Lithium Battery 3.7V 1000mAh (Built In Battery)Uses: This instrument is widely used in metallurgy, power plants, farms, mines, chemicals, scientific research, medicine treatment, pharmaceuticals, environmental protection and other fields.Support Language: EnglishBasic Parameters:LCD Screen or Not: YesGas Type: Ammonia (NH3) Gas Gas Detection: Ammonia (NH3) Gas DetectorSensor Principle: Electrochemical principle, service life of 2 yearsGas Detector: Gas MonitorNH3 Detector: Ammonia Gas Detector SMART SENSORColor Black + GreyDisplay Larger LCD displayGas Type Ammonia ( NH3 ) gas detectorMeasuring range 0-100PPMResolution 0.1PPMBasic error 0.5PPMResponse time Less than 120 secondsRecovery time Less than 120 secondsRepeatability Less than 1%Measuring Principle Electrochemical principle, life for 2 yearsLow / High Alarm / Alarm Setting YesTo alarmAcoustic, optical double alarm, can set the alarm value, an alarm sound is divided into 80 dBWorking Temperature -20-50Working Humidity 60 hoursPacking Gift Box Application Farms, animal farm ammonia detection;Ambient air monitoring and evaluation,Landfill ammonia detection;Frozen field ammonia concentration;Dangerous space into the detection;Shop and workshop etc and the surrounding places ammonia detection;After decorating the house ammonia detection;Storage tanks, pipelines, valves, leakage detection;Waste field survey;Packing Contents 1pc AR8500 Ammonia Gas 1pc User manual 1pc Carrying case 1pc 3.7V rechargeable lithium battery 1pc Battery charger cableDiagram and LCD display ON/OFF Decrement button Increment button / backlight MODE : Measurement mode button The first siren (Blue indicator) The second siren (red indicator) Buzzer LCD Display Sensor T / R: Temperature / relative humidity button Battery compartment cover Gas type Alarm Black light Battery Indicator Measured value Measurement prompt / Temperature Measured valueAmmonia concentration detector, gas detector, gas leakage detectorThe concentration of ammonia in atmosphere Human physiological reaction5-10ppm The nose may be aware of the smell.20ppm Aware of the special smell of ammonia.40ppm A few people feel mild stimulation of eye.100ppm A few minutes of exposure caused by ocular and nasal quite stimulating400ppm Cause throat, nasal cavity and upper respiratory tract acute stimulation.700ppm Exposure for more than thirty minutes may cause permanent damage to the eye.1700ppm Severe cough, wheeze thirty minutes can be fatal.5000ppm Severe pulmonary edema disease, a moment can be fatal asphyxia..Package List:1 x Ammonia Detector1 x USB Cable1 x Manual 1 x Storage CaseNote:Do not stay in a place where the ammonia concentration is too high for a long time, otherwise it will easily cause your own safety hazards.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.