Air data tester

Dear sir/madam
we intend to purchase the followings: -
kindly give us rates mod of payment & delivery period.
rates should be for pakistan basis.
s.no discretion qty unit rates
1 air data tester: 22-26vdc, 20-60w 3a m/n ps131 bii (aircraft development industires ps131 bll) 1 ea
regards