Check the listing for details. BW Technologies GasProbe Flue Gas Analyzer Portable Multi Gas Detection System. Condition: Used. Listed at 450.00 USD. BW Technologies GasProbe Flue Gas Analyser Portable Multi Gas Analyzer System With Probes, Batteries,& Accessories System was pulled from working environment It has been tested to power on fine But shows FAIL massage Due to O2 sensor (Check Pictures Number 7,10) Sale includes as shown - BW Gas Probe Monitor - Probes- Battery Charger and Three Batteries- Martel Printer MCP8850P- Tubing & Filters- Case Actual Unit shown in the pictures I will be shipping this item within 48 business hours from receiving the payment,If you have any question I will be more than glad to answer For international BuyersImport duties, taxes, and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility. Please check with your country’s customs office to determine what these additional costs will be prior to bidding/buying. Return is not accepted for international sales Thank you