TX100 pH/ ORP Transmitter with Display Testing Parameter pH or ORP (REDOX) Measurement Range 0 - 14 pH pH Range 0 - 14 pH Operating Temp Range 0 Degrees to 50 Degrees C Body Material ABS Diameter 99.1 mm Length 99.1 mm Temp Sensor Takes a P1k Input For Use With Any pH or ORP Electrode Recommended Use Industrial applications that require a 4 - 20mA Manufacturers Warranty Length 12 mo