Honeywell GSM-EXT AlarmNet External Antenna CELL-ANT3DB Replacement Cable - NEW 155535948971 error 509 (unleveled) comes up

error 509 (unleveled) comes up and there is no RF output

Manufacturer Juniper Model Number MPC4E-3D-2CGE-8XGE SKU 19-74735 Ref 23-107420

Manufacturer Beckman Coulter Model Number Multisizer 4 SKU 19-75100 Ref 23-108579

the tester simplifies the process of cable shield testing

Honeywell GSM-EXT AlarmNet External Antenna CELL-ANT3DB Replacement Cable - NEW 155535948971 error 509 (unleveled) comes upCondition New Description New, pictures are of one of the actual units available. On hand and ready to ship! Specifics Manufacturer Honeywell Part Number 600 00278 Model Number GSM EXT UPC 886618137662 SKU 19 86871 Ref 23 126172