Hi, looking to sell my underused hanna checker for NO2 ULR(HI764) and NO3 LR(HI781)
NO2 set condition 7/10, 7 sets of testing powder. $40
NO3 set condition 9/10, 19 sets of testing powder/liquid.$70.
interested please drop me a pm, price slighly nego.
self collection at clementi/faber area please.
Thanks!