Air conditioning refrigerant detector High-sensitivity sensor/flexible probe/fast and reliable Applicable in multiple scenarios Detects leaks in refrigeration and heat pump systems, suitable for leak detection of all commonly used refrigerants Extra-long flexible probe, PVC protective cover attached to the hose, no rust after long-term use The probe can be bent to correspond to various measurement environments High-definition backlight display Clear readings can be obtained even in dim measurement environments, making measurements more efficient High-sensitivity detection Quickly detects whether there is a refrigerant leak Large-capacity lithium battery, direct lithium battery charging does not require frequent replacement Universal TYPE-c charging port, lower cost of use Note: Installation guide not included, Please check as much as possible to make sure the item is what you need. Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Specification: ZL77B / GL77B Color: As Shown Material: plastic Package Contents: 1 * HVAC Refrigerant 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.