The zero/span calibration
Portable (compact size, light weight)
Outstanding accuracy, stability and durability
Response time of less than 10 seconds
Stand-by for low power consumption when unit is not in use
Automatic adjustment of warming-up time (2-8minutes.)
Two LED indicators
Extra filters and printer paper
Elegant and simple appearance
Air leakage check Specification
Measuring method : Co, HC : NDIR
Repeatability : Less than ±2%FS
Response time : Within 10 seconds(more than 90%)
Warming up time : About 2 ~ 8 minutes
Flow rate : 4 ~ 6L/min
Power : AC110V...