Soil pH Meter Product Details : SKU#601008 Specifications : 1. Multifunctional: can test Moisture/Light/PH. 2. Moist readings range: 0DRY-10WET 3. Light readings range: 0DARK-2000LIGHT 4. PH readings range: 8ALKALIN-3.5ACIDIC 5. Probe length: 18cm(Approx) 6. Size:26cm x 5.8cm x 3.6cm(Approx)...
http://www.hpsgrowlights.net/germination-accessories/ph-meter/soil-ph-meter.html