
Dải đo CO2 Cấp chính xác Độ phân dải	0 to 6000 ppm CO2 ±3% of reading or ±50 ppm 1 ppm
Nhiệt độ Độ chính xác Độ phân dải	-20 to 60ºC ±0.5ºC 0.1ºC
Độ ẩm không khí Độ chính xác Độ phân dải	10 to 95% r.h. ±3% r.h. 0.1% r.h.
Bộ nhớ (ghi bằng tay)	99 giá trị đọc
Bộ nhớ ghi tự động	20,000 giá trị đọc
Điều kiện hoạt động	5 to 50ºC / 10 to 95% r.h.
Nguồn cung cấp	pin 6 x 1.5V
Kích thước	148 x 72 x 35mm
Trọng lượng	255g

PCE-GA 70 Gas Detector measures CO₂ (carbon dioxide), temperature and humidity
The PCE-GA 70 Gas Detector is an exceptional handheld device that measures and checks air quality, and at the same time, the content of carbon dioxide, humidity and temperature of interiors. This Gas Detector is ideal for heating, air and climatology professionals that need this device for detecting air quality indoors, for testing air ventilation systems in schools, offices, factories and hospitals. The PCE-GA 70 Gas Detector uses a sensor to measure the content of carbon dioxide, air temperature and relative humidity. It can internally store more than 20,000 readings with a time stamp allowing for data to be transferred to a computer. The sensors used for testing air quality are the subject of other requirements, different to those requirements for industrial or scientific laboratory use. As such, we give priority to the properties of the sensor such as durability, low level maintenance and low energy consumption. The PCE-GA 70 Gas Detector meets certain requirements with its NDIR sensor. The measurement of non-dispersed infrared (NDIR) allows for accurate and stable measurements with a measurement range of up to 6000ppm. A new method of measurement has been developed, that we will mention here, for the analysis of air quality: the source of infrared is controlled by a brief pulse of radiation that minimizes the consumption of energy. The piro-electric detector that has been designed and adapted to allow for the analysis of the impulse, as such a functioning pulse like that of a conventional chopper.
Large CO2 measurement range of up to 6000ppm Triple LCD for CO2, relative humidity and air temperature The NDIR sensor for CO2 is maintenance free Automatic and manual data storage for up to 20,000 readings Data Hold and memory for minimum and maximum values Stored values can be read on the display Alarm and time settings RS-232 port with software included Backlit display Safe and easy to use	PCE-GA 70 Gas Detector View or print the user's manual
Technical Specifications
Measurement range for CO2 Accuracy Resolution	0 to 6000 ppm CO2 ±3% of reading or ±50 ppm 1 ppm
Temperature Accuracy Resolution	-20 to 60ºC ±0.5ºC 0.1ºC
Air humidity Accuracy Resolution	10 to 95% r.h. ±3% r.h. 0.1% r.h.
Manual memory	99 readings
Automatic memory	20,000 readings
Operating conditions	5 to 50ºC / 10 to 95% r.h.
Power	6 x 1.5V batteries
Dimensions	148 x 72 x 35mm
Weight	255g
Delivery contents PCE-GA 70 Gas Detector, 6 batteries, mains adaptor, software, RS-232 cable, carrying case and user's manual