Mestek CO Tester LCD Display Screen with Backlight CO Temperature Humidity Monitor Home Household Bedroom Living Room Kitchen Desktop CO Tester Sound Screen Dual Alarm

Features:
Backlit LCD Display Screen: The large LCD display screen can clearly display the current CO data and analogs bars for you, the large size screen makes it also easy for the elderly and children to read, and the backlit feature allows it to be read and used at night.
Triple Detection: CO, temperature, and humidity. Three different test functions are combined into one instrument, which makes it powerful, so you don't need to buy single-function products.
SoundScreen Dual Alarm: When the detected value reaches 100ppm, it will starting an alarm prompt, sound alarm and screen ALARM flashing two prompt ways.
℃/℉ Switching: The temperature units can be switched between ℃ and ℉, the testing ranges is 0~50℃(32~122℉).
Built-in Battery: This monitor uses a 1500mAh large capacity built-in lithium battery to supplys power, you can also recharge it on time.