Removed from a working environment when one of the local utilities changed their system.Multiple units are available on this listing – Price is per unit. Buy more and save with multi-discount. Photos are samples of the stock and represent the average condition. I have no way to test these items.If not satisfied, return the item(s) at no charge within 14 days of receiving for a refund.Tamper proof stickers with serial #s must match and be undisturbed for any returns. See my listings if interested in other transducers. Please reach out if you have any questions. Thank you. SHIPPING POLICY- Items are shipped ***within 2 Business Days of order being placed***.- Monday through Friday excluding holidays.- Items ordered on a Friday will ship the following Monday.- Please ignore eBay’s estimated arrival time. – Tracking numbers used directly on the carriers website tend to be more accurate.- Any shipping charges are calculated to cover the approximate total costs involved to ship. If you are concerned about the charge, please contact me and I can provide a breakdown of the costs. The post office in my city informed me that they do not ship parcels out until the end of the day. Whether I hand your item off to them at 8:00am or 4:59pm, they send it out at the same time. Feedback is reciprocated.