Brand: N/AModel: GZ-SMTColor: WhiteInstructions: Adsorption on the glass product， can be any angle test. Special design， the detection agent does not overflow. Electrostatic than color， waterproof and easy to stick， reusable.How to use: Open the detector， drip 1 CC reagent scale line.Cover with white base down onto the base， vertical glass surface.Electrostatic than the color of the card， to adhere to the Sucker cylinder position， convenient colorimetric.From 2 to 4 weeks during the replaceable reagent to change the water should not be changed， and when.Packing list:1 x  Detection of liquid1 x  Colorimetric disk<img src="http://112.74.112.28/down/products/1500001/1500001_000.jpg" noproxy>