ANSWER:
●法國ADIXEN-ASM142 SERIES
●Multi-Purpose Helium Leak Detector-Dry pump Model
●Multi-Purpose Helium Leak Detector-Oil pump Model
●With Transport cart
●Technical specifications as below

ASM 142 Multi-Purpose Helium Leak Detector
Smallest detectable signal:
Hard vacuum mode: 1 x 10-11 mbar.l/s
Sniffing mode : 1 x 10-7 mbar.l/s
Helium pumping speed at the inlet port: 1.3 l/s
Range of measurements (mbar.l/s):>13 decades
Pumping package: Hybrid turbo pump (AMP0071)
RVP Pascal 2010A : 10 m3/h
High sensitivity analyzer cell (Dual filaments with automatic switching in case of default)
2 hard vacuum test modes: gross leak and normal
Sniffing test mode
Automatic calibration (with built-in temperature compensated calibrated leak)
Auto-zero function
Automatic signal correction function
Automatic management of the test cycles for production leak test
Anti-pollution system
Audio alarm with variable pitch (90 Dba)
Crossover pressure: 10 mbar (7.5 Torr)
Start-up time ( including auto-calibration ): less than 3 min.
D x W x H : 343 x 510 x 428 mm
Weight: 56 kg
Digital and Alphanumeric display
RS-232 interface
Main power supply: 100/130V, 1PH, 50/60HZ