Range/Resolution/Basic accuracy
pH: 0 to 14pH/0.01pH/±(0.02pH+2digits)
ORP: -1999mV to 1999mV/1mV/±(0.5%+2digits)
Temperature: 32 to 149°F (0 to 65°C)/0.1°/±(1.8°F/1°C)
Memory: 20M data records using 2G SDcard
Dimensions: 7.2x2.9x1.9"(182x73x47.5mm)
Weight: 16oz(455g)