It can quickly and accurately detect the concentration of gases such as ammonia, provide gas monitoring data, and the safe of the usage environment.<br> High sensitivity: Equipped with highly sensitive sensors, it can respond to changes in the concentration of gases such as ammonia, helping users effectively prevent potential hazards.<br> In a humid, warm environment, ammonia gas is produced faster.Therefore, while detecting ammonia gas, you should also keepings track of the temperature and humidity.<br> It can display gas concentration values and alarm, with sound and light alarm functions, and remind users to pays attention to gas exceeding standards.<br> and convenient: The small size and designs is easy to carry and operate, suitable for gas detection needs in various occasion.<br> Measuring Ranges: 0-100PPM<br> Temperature: -9℃-55℃<br> Humidity:0-100%<br> Battery:2500mAh<br> Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you!<br> Colour:Photo Color<br> Material:ABS<br> Package Contents:<br> 1 x Ammonia Gas Detectors<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.