HM TDS Meters KL-730 ( TDS-3) & KL-731 ( TDS-3 Temp, With Temp Display)

Range: 0 - 9990ppm ( mg/ L) Resolution: 1ppm ( also available in 10ppm) Accuracy: + / - 2% Power source: 2 x 1.5V button cell batteries ( included) Battery life: over 1000 hours of continuous use Dimensions: 15.5 x 3.1 x 2.3cm ( 6.1 x 1.25 x 1" ) Weight with case: 76.5g ( 2.7 oz) Weight without case: 56.7g ( 2 oz) Ideal for commercial use. Includes a carrying case with belt clip. Highly efficient and accurate due to its advanced microprocessor technology. Hold Function: saves measurements for convenient reading and recording. Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries. Measurement Range: 0-9990ppm. From 0-999ppm, the resolution is in increments of 1ppm. From 1000 to 9990ppm, the resolution is in increments of 10ppm, indicated by a blinking ' x10' image. Display: large and easy-to-read LCD screen. Factory Calibrated: recalibration is not necessary, but can be done easily with a watch screwdriver. There' s no need for messy solutions. Also available in " x10" mode: reads in increments only of 10ppm ( 0-9990ppm) .