Ordering Information Model TB557 Next Step™ Ball Valve Insertion, Hot Tap, Kynar Body, pH/ORP Sensor Assembly(40 psi @ 140°C; 100 psi @ 90°C) Measuring Electrode J Coat-resistant glass/high temperature (5 to 140°C, 0 to 14pH) Integral Temperature compensator 1 3kO Tinned leads(1) Reference Junction E PTFE, Notched, Next Step reference(2) Body Style 0 Replacement TB(X)557 electrode only Accessory Hardware(3) 0 None(4) Integral Sensor Cable(5) F BNC connector, feet Length, Integral Sensor Cable 15 15 ft 0 Not available for, Redox (ORP), or Antimony, pH, electrodes (codes 5 & 6).Not available for Antimony electrodes (code 6).Standard hardware kits have Viton O-rings.Applicable for all body styles. Mandatory for replacement sensors (code 0 in Body Style section).There are 2 options to connect TB557 to TB82 or TB84 transmitters:Option 1 – use BNC/TC to PIN adapter with conduit fitting or BNC/TC to PIN adaptor. In either case temperature compensator code must be 2 or 4.Option 2 – select T in integral sensor code, not designed for use with extension cables or junction box.