Suggested Retail:$119. AP Products 1212.13 024-1000 Tank Check LP with Monitor Kit. The LPG Tank Check is able to accommodate variety of LP Tanks and provide you with up to date levels. Tank Checks unique Sensors accurately measure your Tanks LP level and communicate that information to you via the optional Monitor or through the use of most any device equipped with BlueTooth. The Sensors Bluetooth communications range enables remote monitoring up to 50' away, depending upon obstructions such as walls and other material. 5.25 x 1 x 9 inches.. 7 DAY FULL REFUND GUARANTEE ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 DAY STORAGE IS ALSO AVAILABLE. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.