Air Ion Counter
DLY-6N3 Air Ion Counter
DLY-6E Air Ion Counter
DLY-6N3U Air Anion Counter
DLY-6A3 Air Quality Analyzer
DLY-6A2 Smart Air Ion Counter
DLY-6A1 Smart Air Ion Counter
KT-401P Mini AIR Ion Tester(test anion ions,peak hold)
KT-401A Mini AIR Ion Tester
KT-401 Mini AIR Ion Tester(test +/- ions)
KT-401H Mini AIR Ion Tester
DLY-3B Air Ion Counter (for the small ions)
DLY-3 Air Ion Counter (for the small ions)
DLY-3G Air Ion Counter (anti-humidity)
DLY-4 Air Ion Counter (for the small ions)
DLY-4G Air Ion Counter (anti-humidity)
DLY-6EU Air Ion Counter
DLY-6A(232) Air Ion Counter
DLY-6B Air Ion Counter
DLY-7/7G Air Ion Counter (full-automatic intelligent instrument)
DLY-4G(232) Air Ion Counter (anti-humidity,RS232)
DLY-4G(232)Y Air Ion Counter
DLY-3G(232)Y Air Ion Counter
DLY-3G(232)Air Ion Counter (anti-humidity,RS232)
DLY-2 Air Ion Counter (Test the large,medium,small ions)
DLY-2G Air Ion Counter
DLY-5 Air Ion Counter (Two windows Test two polarity air ion simultaneously )
DLY-5G Air Ion Counter (anti-humidity)
DLY-5G232 Air Ion Counter (anti-humidity)
DLY-71 Air Ion Mobility Spectrometer
DLY-25 AIR ION COUNTER