OMEGA 5-in-1 Multi-Parameter Water Quality Meter PHH-128

• Large Backlit LCD Display • Built-In Rechargeable Battery ( Charger Included) • Simple One-Point Calibration SPECIFICATIONS Measure Range pH: 0.00 to 14.00 Temperature: -50 to 70° C ( -58 to 158° F) EC: 0.00 to 19.99 mS/ cm CF: 0.0 to 199 TDS: 10 to 19990 ppm mV: 0 to ± 1999 Resolution pH: 0.01 Temperature: 0.1° C ( 0.2° F) EC: 0.01 CF: 0.1 TDS: 10 ppm mV: 1 Accuracy pH: ± 0.1 Temperature: ± 1.0° C ( 2.0° F) EC, CF, TDS: ± 2% FS mV: ± 0.1% FS ± 1 digit Operating Temperature: 0 to 50° C ( 32 to 122° F) Automatic Temperature Compensation( ATC) : 0 to 50° C ( 32 to 122° F) Power Supply: Built-in rechargeable battery with 120 Vac plug-in charger Dimensions: 130 L x 91 W x 37 mm D ( 5.12 x 3.58 x 1.46" ) Weight: 230 g ( 8.1 oz)