Check the listing for details. WM B Johnson Model GSM-15 Geiger Counter with Probe. Condition: Used. Listed at 399.99 USD. You are looking at a WM B Johnson Model GSM-15 Geiger Counter with Probe This Item is used and in very good physical condition. Item is untested and sold AS IS WITH NO REFUNDS! What you see is what you get. Item is in Hand and Ready to ship. May even ship the same day. Comes from a pet free and smoke free home. Please ask all questions prior to bidding, I will answer them as quickly as possible. I Accept PayPal Only PAYMENT MUST be received with in 2 days of Winning the Auction. If payment is not received then an Unpaid Item Report will be opened and Auction will be re-listed Free Shipping, which includes tracking. Item usually ships within 24 hours after cleared payment is received. I will ship to the address provided to me through PayPal. Feedback: Your feedback is greatly appreciated. Thank you for your time.