The #RLD380L Refrigerant Leak Detector has the sensitivity needed for HVAC/R, industrial and automotive applications.

 Features
Detects R-134a, R-404A, R-407C, R-410A and R-22 (Freon)
Includes the replaceable #RS380 semiconductor sensor
Color-coded display of Hi and Lo leak levels
Hi/Lo sensitivity switch
Long, flexible-obedient stainless steel gooseneck probe
Fast warmup
Redundant audible and visual alarms
Ambient refrigerant concentration reset
Auto power off
 Specifications
Specifications
Sensitivities: 6g/yr (Hi) and 30g/yr (Lo) to R-134a and R-22; 8g/yr (Hi) and 40g/yr (Lo) to R-404A, R-407C and R-410A
Warmup time: 90 seconds
Battery life: 40 hours (typical)
Probe length: 15.5 in. (394mm)
Auto power off: After 10 minutes of inactivity
Operating temperature: 32° to 104°F (0° to 40°C) @ <80% RH
Weight: 14.1 oz. (400g)
Power source: Four "AA" batteries (included)
Includes
Leak check vial
Batteries
Custom hard plastic carrying case
1-year limited warranty