Image 1 of 1 Additel 9230 - Liquid level indicator for ADT793 controller $423.00 Add To Cart Added! Additel 9230 - Liquid level indicator for ADT793 controller.Part Number: 9230. Additel 9230 - Liquid level indicator for ADT793 controller.Part Number: 9230. You Might Also Like Additel 9020 - Short circuit cable for Additel 761 $31.00 Additel 9901-925 - Carrying case for Additel 925 Generator, and two gauges $398.00 Additel 9079-J - Thermocouple connection wire, type J, mini male connection to type J alligator clips $197.00 Additel ADT110 Short Probe Inserts for ADT875 - Low Temp from $434.00 Additel 9251 - Rubber Boot for 681 gauge $47.00