Features 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 0‑100PPM, 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 Detector Material: ABS Model: AR8500 Battery: 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: English Basic Parameters: LCD Screen or Not: Yes Gas Type: Ammonia (NH3) Gas Gas Detection: Ammonia (NH3) Gas Detector Sensor Principle: Electrochemical principle, service life of 2 years Gas Detector: Gas Monitor NH3 Detector: Ammonia Gas Detector Brand SMART SENSOR Color Black + Grey Display Larger LCD display Gas Type Ammonia ( NH3 ) gas detector Measuring range 0-100PPM Resolution 0.1PPM Basic error 0.5PPM Response time Less than 120 seconds Recovery time Less than 120 seconds Repeatability Less than ± 1% Measuring Principle Electrochemical principle, life for 2 years Low / High Alarm / Alarm Setting Yes To alarm Acoustic, optical double alarm, can set the alarm value, an alarm sound is divided into 80 dB Working Temperature -20-50℃ Working Humidity <95%RH (Non Gel) Storage Temperature 0~40℃ Product Size Approx. 181x63x30mm / 7.1x2.5x1.2in Power Supply 3.7V li battery Continuous Operation Time >60 hours Packing 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 cable Diagram and LCD display ① ON/OFF ② Decrement button ③ Increment button / backlight ④ MODE : Measurement mode button ⑤ The first siren (Blue indicator) ⑥ The second siren (red indicator) ⑦ Buzzer ⑧ LCD Display ⑨ Sensor ⑩ T / R: Temperature / relative humidity button ⑪ Battery compartment cover ① Gas type ② Alarm ③ Black light ④ Battery Indicator ⑤ Measured value ⑥ Measurement prompt ⑦ ℃/℉ ⑧ Temperature Measured value Ammonia concentration detector, gas detector, gas leakage detector The concentration of ammonia in atmosphere Human physiological reaction 5-10ppm 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 stimulating 400ppm 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 Detector 1 x USB Cable 1 x Manual 1 x Storage Case