This is a kind of fine quality quality , which is adopt professional electrochemical sensing module, high accuracy, stable performance, antijamming ability, low consumption and can provides long service . Accurately detect CO2. Large display, you can see the electricity quantity, CO2 value, TVOC value, HCHO value, , and humidity clearly. You can have a try.

Features:
Adopts digital and humidity , high accuracy, stable performance, antijamming ability, low consumption and can provides long service .
Large LCD display, you can see the electricity quantity, CO2 value, TVOC value, HCHO value, , and humidity clearly.
℃ and ℉ switchable, and the sound can be on or off according to your demands.
Equipped with environmental quality judgment function, it will display appropriate level according to measuring value.
Built-in 1800mAh capacity , easy to recharge it with USB cable.
When the is too low, the frame flashes to remind you to recharge it.

Specifications:
Name: Quality Meter
Material: plastics
Display: LCD display
: 1 * built-in , 3.7V, 1800mAh (included)
CO2 measuring-：350ppm-2000ppm
TVOC measuring-：0.000 mg/m³-2.000 mg/m³
HCHO measuring-：0.000 mg/m³-1.000 mg/m³
measuring-: 0℃-90.0℃(32℉-194℉), ±1℃/±1℉
Item size: 176 * 73 * 29mm / 6.93 * 2.87 * 1.14in
Item weight: 222g / 7.83ounce
Package size: 195 * 95 * 35mm / 7.68 * 3.74 * 1.38in
Package weight: 275g / 9.70ounce

Packing List:
1 * Quality Meter
1 * USB Cable