The Soil Tensiometer is a precision instrument used to measure soil moisture tension, indicating how tightly water is held in the soil and how easily it is available to plant roots. It is widely used in agriculture, horticulture, irrigation management, and soil research to optimize watering schedules and improve crop health. The instrument consists of a porous ceramic cup, a water-filled tube, and a vacuum gauge. When inserted into the soil, the ceramic cup allows water exchange between the soil and the device, and the gauge displays soil moisture tension in centibars or kilopascals. This provides accurate, real-time information on soil water status.
Key Features:
| Measurement Parameter | Soil Water Tension |
| Measurement Unit | KPa / Centibar (cb) |
| Gauge Type | Hermetically Sealed, Analog Vacuum Gauge |
| Gauge Case Material | Stainless Steel |
| Measurement Range | 0 – 100 KPa |
| Tube Material | PVC / Polycarbonate |
| Output Signal (Electronic Type) | Analog / RS485 |
| Accuracy | ±2% |
| Temperature Range | 0°C To +60°C |
| Mounting / Installation Method | Direct Soil Insertion |
| Maintenance Requirement | Low Periodic Air Removal |
| Application Use | Irrigation Scheduling, Soil Moisture Monitoring |
| Tip Type | Threaded Tip |
| Ceramic Cup Air Entry Value | ≥ 100 KPa |
| Measurement Principle | Water-Filled Vacuum Pressure Measure |
| Manufacturer | Lakshmi Engineering Works |
| Country Of Origin | India |