Dosing Tip where the tip is immersed in the sample Back Catalog number: PC-1000-654 Availability: In the manufacturer's stock Price on request - + Recommended MA921B/2 Double junction ORP platinum electrode MA921B/2 Price on request SE520 Conductivity/TDS probe with 1meter cable SE520 Price on request MA9305 Pack of 100 x 1.4V batteries. Price on request