TPI 750a Refrigerant Leak Detector Portwest Steelite™ Lusum Safety Trainer the TPI 440 includes a

the TPI 440 includes a 1MHz single channel oscilloscope

Automatic continuous measurement mode

2 x extension bars: 1/2" x 3" & 3/8" x 3"

The analyser has a pump driven sensor to ensure fast response

TPI 750a Refrigerant Leak Detector Portwest Steelite™ Lusum Safety Trainer the TPI 440 includes aTPI 750a Refrigerant Leak Detector The 750a features 400 hour sensor life under normal use and can detect leaks as small as 0. 2 ounces per year (R134a R22). Features: 0. 2 ounce per year sensitivity Detect all existing refrigerants and blends including 404A, PURON and R 507 (AZ50) One hand thumb wheel operation Includes TPI 750a Refrigerant Leak Detector