Real-Time Data &
Sensor Analytics
Custom Hardware &
Automation
High Precision
Calibration
Data logger level air dan suhu air untuk kedalaman hingga 4 m (13 ft). Rentang yang sempit memberi resolusi halus untuk perairan dangkal seperti sumur dangkal, sungai kecil, dan lahan basah.
| Specification | Value |
|---|---|
| Pressure (Absolute) & Water Level — U20L-04 | |
| Operation Range | 0 to 145 kPa (0-21 psia); approx. 0 to 4 m (0-13 ft) water depth at sea level |
| Factory Calibrated Range | 69 to 145 kPa (10-21 psia), 0° to 40°C |
| Burst Pressure | 310 kPa (45 psia) or 18 m (60 ft) depth |
| Water Level Accuracy, typical | ±0.1% FS, 0.4 cm (0.013 ft) water |
| Water Level Accuracy, maximum | ±0.2% FS, 0.8 cm (0.026 ft) water |
| Raw Pressure Accuracy | ±0.3% FS, 0.43 kPa (0.063 psi) maximum error |
| Resolution | <0.014 kPa (0.002 psi), 0.14 cm (0.005 ft) water |
| Pressure Response Time (90%) | <1 second at a stable temperature |
| Temperature (all models) | |
| Operation Range | -20° to 50°C |
| Accuracy | ±0.44°C from 0° to 50°C |
| Resolution | 0.10°C at 25°C |
| Response Time (90%) | 10 minutes in water (typical) |
| Stability (Drift) | 0.1°C per year |
| Logger | |
| Real-time Clock | ±1 minute per month, 0° to 50°C |
| Battery | 2/3 AA, 3.6 V lithium, factory-replaceable |
| Battery Life | 5 years with 1-minute or greater logging interval |
| Memory | 64 KB, non-volatile (approx. 21,700 pressure and temperature samples) |
| Logging Interval | 1 second to 18 hours; fixed rate or up to 8 user-defined intervals and durations |
| Launch / Offload | Immediate or delayed start; offload while logging or stop and offload |
| Required Accessories | COUPLER2-C with BASE-U-4 Optic USB Base Station or U-DTW-1 Waterproof Shuttle; HOBOware Pro |
| Physical | |
| Dimensions | 3.18 cm diameter x 15.24 cm length; mounting hole 6.3 mm |
| Weight | Approx. 154 g in air; approx. 53.9 g in fresh water |
| Wetted Materials | Polypropylene housing and lanyard; Viton and Buna-N O-rings; ceramic sensor in acetal end cap; stainless steel screws |
| Environmental Rating | IP68 |