Hydrotechnik WLB-DDPG Bluetooth Datalogging Pressure Gauge
A compact, battery-powered digital pressure gauge with built-in datalogging and Bluetooth connectivity which gives you accurate and traceable pressure records that a standard gauge simply can’t deliver.
Designed for both stationary and mobile use, the WLB-DDPG stores up to 27,000 data records per test series across up to 10 series, each running for a maximum of 48 hours. Every record captures time, date, actual pressure, and MIN/MAX values — ready for export and analysis when you need them. Unlike the WLB DPG BT, which transmits live pressure readings to your phone via Bluetooth, the WLB-DDPG stores data internally on the gauge itself — so it logs independently even without a connected device, then transfers results via USB-C or the Watchlog Bluetooth app when you’re ready.
Each WLB-DDPG ships in a robust carry case with a USB data stick for CSV file storage, a USB-C to USB-A cable for data transfer and firmware updates, and the gauge itself with protective cap. Data files can be opened directly in Watchlog CSV Visualiser, a free drag-and-drop graphing, analysis, and annotation tool for Windows.
Key Features
- Accuracy ±0.2% FS — ±0.1% and ±0.05% available on request
- Pressure ranges from -1 to 1000 bar
- 27,000 data records per test series, up to 10 series at up to 48 hours each
- 100ms recording rate with automatic adaptive storage intervals
- Bluetooth compatible with the free Watchlog app for iOS and Android — monitor live readings and export CSV test files from your mobile device
- Plug and play USB-C data transfer; exports directly as CSV, compatible with Excel, GoogleSheets etc
- Non-volatile storage. Recordings are retained even if batteries run flat
- Backlit multifunctional LCD with bar graph, MIN/MAX display, and selectable temperature readout (°C or °F)
- 270° rotatable display for easy reading in any orientation
- IP67 rated with membrane keypad, rubber buttons, and protective shroud
- 3 × AAA battery powered — up to 1,500 hours operation
- Optional Minimess® 1620 male or female adaptor for quick connection to test points and hoses (max 630 bar)
| ±0.2% Accuracy | ±0.1% Accuracy (On Request) | ±0.05% Accuracy (On Request) | Measuring range | Resolution |
| WLB-DDPG-V016 | WLB-DDPG-V016-0.1 | WLB-DDPG-V016-0.05 | -1 to 16 bar | 10 mbar |
| WLB-DDPG-0060 | WLB-DDPG-0060-0.1 | WLB-DDPG-0060-0.05 | 0-60 bar | 10 mbar |
| WLB-DDPG-0250 | WLB-DDPG-0250-0.1 | WLB-DDPG-0250-0.05 | 0-250bar | 100 mbar |
| WLB-DDPG-0400 | WLB-DDPG-0400-0.1 | WLB-DDPG-0400-0.05 | 0-400 bar | 100 mbar |
| WLB-DDPG-0700 | WLB-DDPG-0700-0.1 | WLB-DDPG-0700-0.05 | 0-700 bar | 100 mbar |
| WLB-DDPG-1000 | WLB-DDPG-1000-0.1 | WLB-DDPG-1000-0.05 | 0-1000 bar | 100 mbar |






