-6000 Halogen Leak Detector featuring classic outlook and portable size, it can detect all CFCs, HFCs, HCFCs, and blends, including but not limited to R22, R410A, R134A. 1-7 grade sensitivity selectors can be adjusted at any time automatically to the best state of detecting. Inner precise IC with ultra-low power consumption circuit design, more stable, longer battery life. Siren sound and flashing light for the leak alarm indicator. Maximum sensitivity: 0.21oz/yr, for all halogenated refrigerants. Operating temperature: 0-52 (30 to 125). Response time: Instantaneous. Preheating time: 6 seconds. Reset time: 2-10 seconds. Battery life: 50 hours for normal use. Fixed probe length: 7.87 inches. Power supply: 6V DC, 4 AAA alkaline batteries (NOT included). Different factory batches may cause differences in sticker words, which do not affect the use. Color: Black. Material: Plastic. Size: 1.37 x 1.37 x 5.90 inches. Package Contents: 1 x Freon Leak Detector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3cm.