BW Honeywell-GAS alert Micro5 IR Multi-gas w/co2-Pumped - Medicine Hat

I have a BW Gas Alert Micro 5 IR for sale Have owned it for several years and now retired. Has not been in use for over 5 yrs. Needs to be calibrated but other than that it works fine. Included is docking station and calibration unit for calibrating and bump testing. Has wand for the internal pump if required. Has regulator for bottles and all the hoses. Charging unit in bump unit as well as spare stand alone charger. Holster for monitor as well
I have no idea what it is worth so looking for offers - manual can be found online