316-3 is a hand held leaked refrigerant gas detector.
specs at a glance:
monitors leaked refrigerant gas
long flexible probe for hard to reach places
audible alarm and alarm by LED indicator
detectable refrigerants: R-22, R134a, R404a, R410A, R507, R438A, all CFC, HCFC, HFC
SAE J1627, EN 14624, EG2004/108/EG