Amazon has 2-Pack Soil pH Meter, 3-in-1 Moisture Light Tester Kit for Garden Lawn, Indoor/Outdoor for $10.99
Shipping is free with Prime or on orders $25+
About This Item:
- 3-in-1 function: Test soil moisture, pH value and sunlight level of plants with iPower soil meter. It can help you control pH level in soil, let you know if plants get enough light and measure the moisture content of soil
- Accurate & reliable reading: Double needle detection technology enhances the speed and accuracy of detecting. pH range: 3.5-8 pH; moisture range: 1-10; relative light: 0-2,000 Lux
- Easy to use: No battery needed, just plug the sensor probe into the soil about 2-4 inches to get quick readout you want to measure