Comes with one regular replaceable soil tip

500 rings per box

Should be moved periodically to increase effectiveness

±2% accuracy

wiring harness

LaMotte STH-14 Soil Test Kit trap glue refill Comes with one regular replaceableThis LaMotte STH 14 Soil Test Kit includes everything you need for fast, accurate in house soil test results so you can make quick, problem solving decisions without waiting for results from a lab. Kit contains enough reagents and materials for 100 pH tests, and 50 tests each of nitrate nitrogen, phosphorus, potassium, humus (organic matter), calcium, magnesium, ammonia nitrogen, manganese, aluminum, nitrite nitrogen, sulfate, chloride and ferric