3 in 1 PH Soil Water Moisture Light Tester Meter for Garden Plant Flower This is Soil Moisture Meter Indoor/Outdoor Plant Monitor Humidity Hygrometer Sensor -This 3-in-1 can test moisture, pH and light meter with easy to read scale. with this easy to use and scientifically accurate measuring device. -No batteries are needed, the prongs measure the moisture and pH content of the soil from root level and determine whether your plants are ideally situated with regards to their positioning. -The moisture meter works with all soil types and is suitable for use in or outdoors - simply place it in the soil, set to the setting you wish to measure and read the scale. -3 functions in one compact meter - measure the moisture and pH content of the soil and the environmental light Scientifically accurate -Easy-to-read scale indicator -Works with house and garden plants -Instructions included -Meter Size: 5 x 8 x 3.5cm [2 x 3.2 x 1.5\"] -Probe length: 21cm [8\"] -Bronze probe diameter: 4.8mm -silver probe diameter: 5.1mm -Distance between probes: 1.2cm -Color: Green -Item size: 330*100*30mm -Net weight: 87g We specialize in electronics, computer, cell phone cables and accessorie.. Store Name: "Cable Link" 2525 Carling Avenue, Unit 16, Ottawa, K2B7Z2; Tel: 613-680-6188 Inside of Lincoln Fields Shopping Center (Upstairs, Near "Service Canada")