CO متر یا مونو اکسیدکربن قلمی ارزان مدل AZ-7701

*&* Usually, in 5-18 working days, customer can get your order after issuing the order. However, we will do our best to dispatch it as soon as possible. If you are urgent, please make us know it.The lead time is about 3-4 business days, Fedex/DHL shipping time to USA is 5-7 days.,If any questions, please contact us first. && *Pocket Type CO Detector 7701 *Digital pocket detector for checking CO concentration *Dual LCD display with current carbon monoxide and maximum CO readings *Long life and reliable electrochemical carbon monoxide sensor *Warning carbon monoxide audible alert. Alarm adjustable, preset at 25ppm *Housing top design surrounds with rails to help air ventilation for quick and accurate response *Easy to manually calibrate at 0 or 500ppm carbon monoxide standard gas *Backlight function works in dark area *Low battery indicator *Power by 3pcs AAA batteries *CO range 0~999 ppm *Resolution 1 ppm *Accuracy(at 20+5 C, 50+20%RH) :+20% at 0~100ppm; +15% at 100~500ppm Other ranges are not specified *Response time:within 60 seconds *LCD size (mm, HxW):11×26 *Operating condition:0~50 C , 5~95% RH (avoid condensation) *Storage condition :-20~ 50 C,0~95%RH(avoid condensation) *Power supply :3pcs AAA batteries *Meter size (LxWxH,mm):175x 47 x 28 *Weight:120g *Standard package:Meter, manual, AAA alkaline batteries, plain box, wrist strap, soft carry pouch