Product Features in BOLD are required.
Tower Mounting Pole:
240mm (9 1/2 inch) Pole with M20 Nuts MAP-M240 Add $11.00
240mm (9 1/2 inch) Pole NO Nuts MAP-0240 Add $6.20
22mm (7/8 inch) Pole NO Nuts MAP-0022 Add $1.65
1/2 inch NPT conversion nipple MAP-N033 Add $8.50
750mm (29 inch) Pole with M20 Nuts MAP-M750 Add $34.95
750mm (29 inch) Pole NO Nuts MAP-0750 Add $25.95
43mm (1 3/4 inch) Pole with M20 Nut MAP-M043 Add $5.40
Surface Mount Options:
Tulip Surface Flange-requires pole without nut Add $1.90
Right angle steel bracket-requires pole with nuts Add $3.75
Additional Options 
Buzzer Option-80db@1 meter (not for 12 volt models) Add $15.75
Right Angle bracket with wiring cavity-(requires Tulip Base above, And Pole with no nuts-select above) Add $10.50