handheld CO2 detector or CO2 sensor

handheld CO2 detector or CO2 sensor    Brief Introduction PGas-21 portable single gas detector is used to detect the concentration of flammable gases, oxygen gas and many kinds of toxic & harmful gases. Users can set the low and high alarm point according to the practical need. It has CE and ATEX certificates. Main Features u  Single gas detection, sound/light/vibration alarms u  Segment encoding LCD display u  Backlight setting is available u  Self-test during starting up u  Setting upper/lower alarm points, STEL and TWA is also inclusive for toxic gases u  Adjustable calibration concentration, facilitating users for calibration u  Modifiable user passwords, providing users with operation protection u  Large-capacity lithium battery with very long standby time u  Real-time clock setting function u  Setting of the silencer u  Alarm sounds at different frequencies under different alarm conditions u  Manual cancellation of vibration alarms u  Automatic battery detection and under voltage indication Technical Parameters

Parameters	Characteristics
Detected Gas	FL,H2,O2,CO,CO2,H2S,SO2,CL2,NH3,NO,NO2,HCN,PH3
Sampling Method	Diffusion
Measurement Principle	Electrochemical(oxygen and toxic gases) Catalytic combustion(flammable gases) Infrared principle(carbon dioxide gas)
Response Time	(CO2<10s),(O2,flammable gases<20s),(CO ,H2S ,SO2,CL2,NO,CLO2,NO2,H2<30s),(HCN,NH3,PH3<100s)
Detection Error	±5%F.S
Operation Mode	Touch push-keys
Display Mode	LCD display
Working Temperature	-20℃~55℃
Environment Humidity	0~95%RH(non condensation)
Storage Temperature	0℃~40℃
Power Supply	Rechargeable lithium battery, continuously work for over 24 hours.
Battery	4.2V lithium battery ,1700mA/h
Dimension	125×66×42 mm
Weight	105g
Certification of Explosion Protection	ExiaII CT3
Calibration Mode	Optional calibrating cap to facilitate calibration by users.

 Lectotype table

Model	Range		Low alarm setting range		High alarm setting range		Low alarm point	High alarm point
PGas-21-FL		0~100%LEL		10%LEL~25%LEL		25%LEL~80%LEL	20%LEL		50%LEL
PGas-21-H2		0~1000ppm		100ppm~300ppm		400ppm~600ppm	100ppm		500ppm
PGas-21-O2		0~30%vol		16%vol~19.5%vol		22.5%vol~24%vol	19.5%vol		23.5%vol
PGas-21-CO-1		0~500ppm		25ppm~100ppm		100ppm~500ppm	35ppm		200ppm
PGas-21-CO-2		0~1000ppm		25ppm~100ppm		100ppm~500ppm	35ppm		200ppm
PGas-21-CO2-1		0~5%vol		1000~2500ppm		2500~5000ppm	1500ppm		2500ppm
PGas-21-CO2-2		0~20%vol		4%~8%		8%~16%	5%		10%
PGas-21-CO2-3		0~65%vol		13%~26%		26%~52%	15%		30%
PGas-21-CO2-4		0~100%vol		20%~40%		40~80%	30%		50%
PGas-21-H2S		0~100ppm		5ppm~15ppm		15ppm~30ppm	10ppm		15ppm
PGas-21-SO2		0~20ppm		1ppm~3ppm		3ppm~10ppm	2ppm		5ppm
PGas-21-CL2		0~10ppm		0.5ppm~3.5ppm		4ppm~6ppm	0.5ppm		5ppm
PGas-21-NH3		0~100ppm		20ppm~30ppm		30ppm~70ppm	25ppm		50ppm
PGas-21-NO		0~250ppm		20ppm~50ppm		50ppm~100ppm	25ppm		50ppm
PGas-21-NO2		0~100ppm		1ppm~2ppm		2ppm~5ppm	1ppm		5ppm
PGas-21-HCN		0~30ppm		5ppm~10ppm		10ppm~15ppm	5ppm		10ppm
PGas-21-PH3		0~1ppm		0.3ppm~0.5ppm		0.5ppm~0.8ppm	0.3ppm		0.6ppm

    Executed Standards GB12358-2006: General Technical Requirements for Gas Detector in Workplace Environments GB3836.1-2000: Electrical apparatus for explosive gas atmospheres Part 1 General Requirements GB3836.4-2000: Electrical apparatus for explosive gas atmospheres Part 4 intrinsic safety "i" Explosion-proof Mark: ExiaIICT3, it applies to 0 Zone,1 zone,2 zone,the place that contains IIA~IIC category and T1~T3 group of explosive gas mixture ,and is qualified to get explosion-proof conformity certificate through inspection by CQST.     Package details: Model details:   Certificates: Payment: T/T, Western union, Paypal, L/C   Shipping:TNT,UPS,DHL,Fedex and othercourier available as required.   Delivery time:3-5 days after your full payment.   COMPANY INFORMATION:   Our company was established in 2004, engaged in researching and developing high quality air-sensitive technology. Our company has first-grade equipment, scientific methods, project management system and excellent employees. Our main products are gas-leakage detectors and gas analyzers, and are widely used in industrial field and chemical industry. Our company is always ready for supplying excellent products and professional service EXHIBITION     COMPANY CERTIFICATES     Why choose us?   -NO limit MOQ   -OEM or ODM Service   -Fast delivery with top quality   -Flexible payment method, Paypal can be accepted   -1 Year free warrenty of all the products   -Professinal after-sale service   Contact with us!