

Product Features:
Hydrotechnik WLB-DDPG, Bluetooth Digital Datalogging Pressure Gauge, 0 to 160 Bar
The WLB-DDPG Series digital datalogging pressure gauges deliver high-accuracy pressure measurement, display, and recording for up to 48 hours. Designed for both stationary and mobile use, they feature rugged IP67 protection and Bluetooth connectivity via the free Watchlog app. Perfect for testing, calibration, and diagnostics, the WLB-DDPG provides precise, traceable data in a compact, cost-effective solution for industrial and automotive applications.
AVAILABLE MODELS
| Part Number | Measuring Range |
|---|---|
| WLB-DDPG-V016 | -1 to +16 bar |
| WLB-DDPG-0060 | 0 to 60 bar |
| WLB-DDPG-0160 | 0 to 160 bar |
| WLB-DDPG-0250 | 0 to 250 bar |
| WLB-DDPG-0400 | 0 to 400 bar |
| WLB-DDPG-0700 | 0 to 700 bar |
| WLB-DDPG-1000 | 0 to 1000 bar |

TECHNICAL SPECIFICATIONS
| Specification | Details |
|---|---|
| Pressure ranges | Between -1...1000 bar |
| Accuracy | ±0.2% (0.1% and 0.05% accuracies available on request) |
| Pressure units | bar/mbar, kPa/MPa, PSI, kg/cm², mH₂O, inH₂O, ATM |
| Display type | Multifunctional LCD, 4 1/2 digit, with background lighting |
| Display functions | Bar graph, pressure unit, display filter, MIN/MAX value, Overpressure indicator 110% of full scale pressure value (FS) |
| Pressure measuring cell | ≤10 bar piezo resistive, ≥20 bar thin film strain gauge |
| Temperature compensation | 0...50°C |
| Temperature error | 0.005% of full scale pressure value (FS) / K |
| Measuring rate actual value | 10 ms |
| Measuring rate bar graph | 50 ms |
| Thread ISO 1179-2 | G1/4 with NBR gasket, AF27 |
| Process connection material | Stainless steel 1.4404 |
| Medium temperature | -20...80°C |
| Housing connection | 270° axially rotatable |
| Degree of protection DIN EN 60529 | IP67 |
| Dimensions | Ø 90 mm, D=45 mm, H=120 mm with protection cap |
| Materials | Sensor Body 304L, Measuring Cell 316L |
| Ambient conditions | 0...50°C with air humidity ≤85% r.h. |
| Weight | 357 g without 3×AAA batteries fitted |
| Vibration resistance (IEC 60068-2-6) | 5g up to 500 Hz |
| Shock resistance (IEC 60068-2-29) | 25g for 11 ms |
| Auto-off function | Selectable switch-off time 5 minutes |
| Battery type | 3×1.5V AAA |
| Battery operation | 1500 h |
| Datalogger max. data sets | 27000 per recording series |
| Datalogger record series | 1...10 |
| Storage rate | 0.1...64 s – automatic depending on recording duration |
| Max. recording duration | 48 h |
| Data set information | time / actual pressure / MIN/MAX value |
| Digital data transmission | Serial USB 2.0 via USB-C port |
| PC software | Detection as USB data storage device, spreadsheet program (Excel) |
| File format | .csv |
| Mobile device software | Compatible with Watchlog Bluetooth iOS and Android apps for display and datalogging |
| Linearisation | The factory linearisation is changed via OFFSET and INCREASE; a special programming adapter is required. Communication between PC/laptop and digital pressure gauge is via TTL level by means of a PC terminal program |
| Certificate (optional) | UKAS traceable certificate, works test certificate |
GENERAL DELIVERY INFORMATION
Thank you for visiting and shopping at www.flowfitonline.com. Following are the terms and conditions for the Shipping Policy for Harrier Fluid Power Ltd T/A Flowfit.
Orders will be processed and shipping during standard working hours (0830 – 1700 BST) Monday to Friday (excluding Bank Holidays). All orders placed before 4pm Monday to Thursday and 3pm on a Friday, are processed and despatched on the same business day. If we are experiencing a high volume of orders, shipments may be delayed by 1-2 Days. Please allow additional days in transit for delivery. If there will be a significant delay in shipment of your order, we will contact you via email or telephone.
UNITED KINGDOM DELIVERY RATES & ESTIMATES
| United Kingdom | Price | Terms |
| FREE Delivery | FREE | Free United Kingdom delivery is available for orders over £250+VAT. Delivered by close of business next working day. |
| Express Delivery | 9.99 + VAT | UK Mainland Delivery under £250 + VAT. Delivered by close of business next working day. |
| Express 9am | £42.95 + VAT | Delivered by 9am next working day |
| Express 12pm | £20.95 + VAT | Delivered by 12pm next working day |
| Channel Irelands | ||
| Standard Delivery | £20.95 + VAT | Delivery between 2-3 working days |
| UK Highlands & Isles | ||
| Order valve below £99.99 + VAT | £31.95 + VAT | Delivery between 2-3 working days |
| Order valve over £99.99 + VAT | £28.95 + VAT | Delivery between 2-3 working days |
* Overnight delivery is only available for orders for certain delivery addresses within the United Kingdom. Please contact us beforehand to see if you are eligible.*
If your order is urgent and you need delivery to be guaranteed for a certain day or time please contact us as soon as possible. Our email is sales@flowfitonline.com or you can call us on 01584 876 033 for quicker turn around.
Collection – All customers are welcome to have their order collected by another courier of their choosing, or come to our depot in Ludlow, Shropshire to collect their order in person. We kindly ask that customers advise us in advance that they’re planning to collect their order so that we can make sure the order is complete before being collected.
INTERNATIONAL DELIVERY RATES & ESTIMATES
Shipping charges for your order will depend on weight and country the order is to be shipped to. All cost will be calculated and displayed at checkout. All orders for delivery within the EU will arrive on a 2-5 delivery service depending on Country location. All shipments outside the EU will arrive on a 3–7-day delivery service depending on Country location. Please check for accurate delivery times with our Sales department. If you Parcel has not arrived within the time expected please do not hesitate to contact us. Please ensure the ship to address you type during checkout is correct. We are not responsible for any wrong or undeliverable addresses.
CUSTOMS, DUTIES AND TAXES
Import duties, taxes, and brokerage fees are not included in the product price or shipping and handling cost. These charges are the buyer’s responsibility as we are only charging the transportation fee for your order. You may check with your country’s customs office to determine if there will be additional costs. The buyer is responsible for obtaining information regarding their country’s laws, regulations, and restrictions that may apply when purchasing our products. By placing an international order (shipping outside of the United Kingdom) the buyer is responsible for abiding by their country’s laws, regulations, and restrictions. If product is seized and destroyed by customs, we will NOT be responsible for the losses, product, or shipping refunds.
SHIPMENT CONFIRMATION & ORDER TRACKING
You will receive a Shipment Confirmation email once your order has shipped containing your tracking number(s). The tracking number will be active within 24 hours.
WORKING CLOSELY WITH TOP CARRIER EXPERTS
We use some of the top carrier companies in the world, although you can use your own carrier to collect the order. All deliveries require a signature on delivery. Below are our main carrier companies.

DAMAGES
Harrier Fluid Power Ltd T/A Flowfit is not liable for any products damaged or lost during shipping. If you received your order damaged, please contact us to file a claim. Please save all packaging materials and damaged goods before filing a claim.
RETURNS POLICY
Our Return & Refund Policy provides detailed information about options and procedures for returning your order.
