General |
| Operating Temperature | - 40° to +150°F ( - 40° to +65°C) |
| Storage Temperature | - 50° to +158°F ( - 45° to +70°C) |
| Current Draw | 0.14 mA (average), 30 mA (peak) (from external power source) |
| Battery | CR123A 3 - Volt Lithium cell |
| Battery Life | 8 months without sunlight - greater than 2 years depending on solar charging |
| Solar Panel | 0.5 Watts |
| Housing Material | UV - resistant PVC plastic |
| Dimensions (length x width x height) | 6.25" x 2.25" x 7.88" (158.75 mm x 57.15 mm x 200 mm) |
| Weight | 1.08 lb. (.49 kg) (with battery, without sensors) |
Leaf Wetness Sensor |
| Sensor Type | Electrical resistance |
| Cable Type | 4 - conductor, 26 AWG |
| Connector | Modular connector (RJ - 11) |
| Maximum Cable Length | 200' (61 m) using 4 - conductor 26 AWG cable |
Watermark Soil Moisture Sensor |
| Sensor Type | Electrical resistance |
| Standard Cable | 15' (4.6 m) Watermark standard two - wire, stripped and tinned |
| Maximum Cable Length | 18 AWG: 800' (243 m) (UF wire recommended) |
Multi - Purpose Temperature Probe |
| Sensor Type | Precision thermistor |
| Standard Cable | 15' (4.6m) 22 AWG direct burial cable, stripped and tinned |
| Maximum Cable Length | 24 AWG: 800' (244 m), 22 AWG: 1200' (365 m) |
Wireless Communications |
| Transmit/Receive Frequency | US Models: 902 - 928 MHz FHSS, Overseas Models: 868.0 - 868.6 MHz FHSS |
| ID Codes Available | 8 |
| Output Power | 902 - 928 MHz FHSS: FCC - certified low power, less than 8 mW, no license required 868.0 - 868.6 MHz FHSS. CE - certified, less than 8 mW, no license required |
| Range | Line of Sight | up to 1000 feet (300 m) |
| Through Walls | 200 to 400 feet (75 to 150 m) |
Sensor Output |
| Leaf Wetness | Resolution | 1 |
| Range | 0 to 15 |
| Dry/Wet Threshold | User - selectable |
| Accuracy | ±0.5 |
| Update Interval | 46 to 54 seconds |
| Soil Moisture (Watermark Soil Moisture Sensor) | Resolution | 1 cb (centibar) |
| Range | 0 to 200 cb |
| Update Interval | 77 to 90 seconds |
| Temperature | Resolution and Units | 1°F or 1°C. (user selectable) |
| Range | - 40° to +150°F ( - 40° to +65° C) |
| Sensor Accuracy | ±1°F (±0.5°C) typical (See Chart) |
| Update Interval | 77 to 90 seconds |
| Input/Output Specifications | Black | Common |
| White | Temperature (variable resistance to common) |
