KL-026 multi-parameter Water Quality Monitor Technical Specification Model KL-026 Measuring Range PH;0.00~14.00 PH 'C-50~70'C (-58'F~158'F) EC:0.00~19.99EC CF:0.0~199CF TDS:10~19990ppm Resolution PH:0.01PH 'C:0.1'C(0.2'F) EC:0.01EC CF:0.1CF TDS:10 ppm Accuracy PH:0.1 PH 'C:1.0'C EC\CF\TDS:?%F.S Operating Temperature 0'C~50'C Automatic Temperature Compensation 0~50'C Power Supply DC6V or 4X1.5V(AG13) Dimensions 223g Weight 155mmX86mmX22mm