Detects all kinds of halogen refrigerants.Inner precise IC with Ultra-Low consume circuit design, more stable, longer battery time.Excellent sensor, high sensitivity, long use time.Flexible probe allows you to reach into awkward corners and tight spaces.Color: BlackTwo-color visual display of battery voltage.Its advanced detection technology enables it to recognize all HFC(134a) CFC refrigerants.Audio and visual alerts warn of any leakages, no matter how small.Operating Temperature: 0C to 52C (30F to 125F)Maximum Sensitivity: 6gr/yr Compatible With all halogenated refrigerantsBattery Life: Approximately 50 hours Compatible With normal useResponse Time: InstantaneousWork Mode: Continuous, no limitations FixedProbe Length: 17cm/6.5inWarm-up Time: Approximately 6 secondsReset Time: 2 to 10 secondsPowered By: 4 * AAA 1.5V batteries (not included)Package Contents:1 x Detector1 x Carry/storage Case1 x Users Manual (English)Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-4cm.