●Specifications Material: Body/ABS resin, electrode part/aluminum/zinc ●Includes sandpaper for polishing the tip of the sensor ●Measurement range: pH 3.0 to ph10.0 pH/Acidity below 6.9 Neutral 7.0 to 7.9 Alkaline 8.0 or higher Product size (mm): Length x Width x Height: 39 x 50 x 248 Measurement temperature range (℃):3至10