Features: LED leak intensity indicators show relative leak size, Detects all existing refrigerants. Equipped with flexible stainless sensor catering for all applications. Super sensitvie, responds to minutes traces of halogen gases. Exclusive Scan mode increases sensitivity and quikens leak checking, Enhances electronic circuitry. Hand-held design for easy operation, sound & visible leakage alarm indication and low battery indication. Specifications: Component:ABS Size: Approx.158.6x64x30.5mm/6.24x2.52x1.2inch Color:Black This refrigerants gas detector responsd to all halogenated refrigerants, This is includes, but is not limited to : CFCs R500, R503 HCFCs R22, R124, R502 HFCs R134a, R404a, R125 A. Detect Ethylene Oxides gas leaks in hospital equipment; B. Detect refrigerants leaks in air condition, refrigeration and storage/recover containers C.Detect Halon gases in fire extinguising system. Model number：AS5750L Gas Type：All Refrigerants Gas Leak Size Indication：Indication Light&Alarm Buzzer Alarm Mode：sound alarm and light alarm Operation temperature：0°C~ 50°C Sensitivity：＜0.5oz/yr, for all halogen based refrigerants Power Supply：3x1.5VAA (NOT Included) Response Time:Instantaneous Storage Temperature:-10~60℃/14~140℉ Continuous Operation Time:9 hours (slightly vary with opeartion) Package Includes: 1pcs Halogen Leak Detection Device note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.