1、Water-proof metal electrode. 2、It's lightweight and portable design, convenient for indoor and outdoor use. 3、This dual meter offers fast, simple, easy and accurate method to measure both pH and temperature of different kinds of soil. 4、Easy to use: Simply insert the probe of the soil testing kit into soil around 4-6 inches, then toggle switch to test temperature and pH. 5、Great for quick pH & temperature reference of vineyards, orchards, field produce, nurser planters, lawn maintenance, gardens, planters. Feature: Water-proof metal electrode. It's lightweight and portable design, convenient for indoor and outdoor use. This dual meter offers fast, simple, easy and accurate method to measure both pH and temperature of different kinds of liquid.  Easy to use: Simply insert the probe into the liquid, then toggle switch to test temperature and pH.  Perfect pH meter for both household and laboratory. Speciation: Measuring range: 0.00~ 14.00pH Accuracy: ± 0.2PH, ± 0.1PH (at 20 ° C) Working temperature: 0°C~50°C Automatic temperature compensation: 0°C~50°C Battery: 4pcs AG13 button battery(Not included) Size: 18.8* 3.8* 3.8cm / 7.4* 1.5* 1.5inch (Approx.) Package list: 1 * Water PH  Meter  1 * Screw driver 2 * User manual