Image 1 of 1 Additel ADT901B-N-KIT - Test kit for Additel 901, 901A, or 901B (Hose barb fitting, hose, etc), 1/4 NPT M $239.00 Add To Cart Added! Additel ADT901B-N-KIT - Test kit for Additel 901.Part Number: ADT901B-N-KIT. Additel ADT901B-N-KIT - Test kit for Additel 901.Part Number: ADT901B-N-KIT. You Might Also Like Additel ADT110 Short Probe Inserts for ADT878 - Low Temp from $501.00 Additel 100-761A Hose Test Kit from $309.00 Additel 9054-UK - Calibration fixture for ADT151 (Including adapter base w/ 1/4BSP male fitting, RS232/power supply cable with UK plug, and 9V adapter) Note calibration software available for... $974.00 Additel 104-HP Adapter and Fitting $1,377.00 Additel 9907-762 Carrying Case for Additel 762 Automated Calibrator $789.00