Model	KL-139A	KL-139B
Measuring range	0~1999PPm(mg/L)
Accuracy	±2℅F·S
Resolution	1PPm(mg/L)
Display	4-digital LCD
Environment	Humidity:≤95℅
Automatic Temperature Compensation	0℃~50℃
Power Supply	4×1.5V(AG13)
Dimensions	165mm×26mm×26mm	60mm×55mm×23mm
Weight	63g	60g