Built in Default Level guage in dashboard.
[{"id":"4b438d01afcd708b","type":"inject","z":"ae4889735061574b","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"10","payloadType":"num","x":320,"y":180,"wires":[["c54d2bc07606309c"]]},{"id":"6164a0cc4a012d60","type":"ui_gauge","z":"ae4889735061574b","name":"","group":"833d4cbc08a98b24","order":1,"width":6,"height":6,"gtype":"wave","title":"Tank Level","label":"%","format":"{{value}}","min":0,"max":"100","colors":["#00b500","#e6e600","#ca3838"],"seg1":"","seg2":"","diff":false,"className":"","x":520,"y":130,"wires":[]},{"id":"7eb1fd6f85e4421a","type":"ui_slider","z":"ae4889735061574b","name":"","label":"slider","tooltip":"","group":"833d4cbc08a98b24","order":5,"width":0,"height":0,"passthru":true,"outs":"all","topic":"topic","topicType":"msg","min":0,"max":"100","step":"5","className":"","x":320,"y":130,"wires":[["6164a0cc4a012d60"]]},{"id":"c54d2bc07606309c","type":"ui_gauge","z":"ae4889735061574b","name":"","group":"833d4cbc08a98b24","order":2,"width":6,"height":6,"gtype":"wave","title":"Tank Level","label":"%","format":"{{value}}","min":0,"max":"100","colors":["#00b500","#e6e600","#ca3838"],"seg1":"","seg2":"","diff":false,"className":"","x":520,"y":180,"wires":[]},{"id":"2e33dbd4517886c8","type":"ui_gauge","z":"ae4889735061574b","name":"","group":"833d4cbc08a98b24","order":3,"width":6,"height":6,"gtype":"wave","title":"Tank Level","label":"%","format":"{{value}}","min":0,"max":"100","colors":["#00b500","#e6e600","#ca3838"],"seg1":"","seg2":"","diff":false,"className":"","x":520,"y":230,"wires":[]},{"id":"b76a8be3c49ce517","type":"ui_gauge","z":"ae4889735061574b","name":"","group":"833d4cbc08a98b24","order":4,"width":6,"height":6,"gtype":"wave","title":"Tank Level","label":"%","format":"{{value}}","min":0,"max":"100","colors":["#00b500","#e6e600","#ca3838"],"seg1":"","seg2":"","diff":false,"className":"","x":520,"y":270,"wires":[]},{"id":"d9965b0e9227255f","type":"inject","z":"ae4889735061574b","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"25","payloadType":"num","x":320,"y":230,"wires":[["2e33dbd4517886c8"]]},{"id":"89415e06023639e7","type":"inject","z":"ae4889735061574b","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"75","payloadType":"num","x":320,"y":270,"wires":[["b76a8be3c49ce517"]]},{"id":"833d4cbc08a98b24","type":"ui_group","name":"LEVEL","tab":"fb48ae21810a7ddc","order":3,"disp":false,"width":24,"collapse":false,"className":""},{"id":"fb48ae21810a7ddc","type":"ui_tab","name":"TEST","icon":"dashboard","order":7,"disabled":false,"hidden":false}]