This precision instrument measures conductivity, temperature, and one other parameter using the probe and cable length of your choice. Choose any one of the following probes: pH, ORP, pH/ORP combination, ammonium, chloride, or nitrate. A conductivity probe is built-in with the cable. All of the cables provide temperature measurements with no temperature probe needed. A graphic display offers detailed messages and instructions. Both the display and keypad are backlit. The rubber over-molded case features an IP-67 waterproof rating. Order instrument, cables, and probes separately below.