BWSENSING Dual Axis Wireless NB-Iot Inclinometer (NB-WK100)

A tilt reading is only worth something if it reaches the person who has to act on it. The BWSENSING Dual Axis Wireless NB-Iot Inclinometer (NB-WK100) is built around that idea: it measures inclination on two axes, charges from the sun and sends its data over a cellular network to a monitoring cloud system, so nobody has to walk out to the structure with a laptop.

The product is available through this page, by quotation.

Background

The company and its lineage

The NB-WK100 comes from Bewis Sensing Technology LLC, an innovative, fast-growing company established in 2010. The company makes inclinometers and related sensing products, and since 2019 it has used BWSENSING as its global brand. That is the name you will see on every model in the range, from wired digital units to the wireless nodes described here.

The NB series is the wireless branch of that family, with four versions named: NB-WK100, NB-WL300, NB-WM410 and NB-WS2000. The NB-WK100 and the NB-WL300 are presented together as a high cost-effective wireless tilt sensor that supports two network modes, NB-IoT and GSM. This page deals with the NB-WK100 only, and every figure below belongs to that version.

Positioning and key technology

Most inclinometers send their signal down a cable to a logger or controller. That works well in a plant room or on a machine, but it becomes a burden on a long embankment, a tower, a dam face or a group of structures spread over a wide area. The NB-WK100 is positioned for exactly those sites. It replaces the cable run and the mains connection with solar charging and a cellular link.

Two technologies carry the idea. The first is the radio: the unit supports NB-IoT and 2G-GSM, so it can report over whichever of those networks is available at the site. The maximum transmission distance is no limit, which reflects the fact that data travels over the public cellular network rather than a private radio link. The second is the back end: the unit works with a customizable monitoring cloud system, where readings are collected and can be shaped to the needs of the project.

The sensing itself is dual axis, with an accuracy of 0.5° and a resolution of 0.0007°. In plain terms, the sensor can register very small changes in angle, which is what matters when you are watching a slow movement rather than a sudden one.

Technical Specifications

Specifications as published by the manufacturer; confirmed against the datasheet at quotation.

The manufacturer has not published the dimensions, the weight, the IP rating, the battery capacity, the power supply voltage, the operating temperature, the package contents, the measurement range per axis or the current consumption; they are confirmed at quotation.

What makes the NB-WK100 different from a wired inclinometer?

The difference is mainly about where the work happens. A wired inclinometer is often very good at the measurement, but it leaves you with the job of cabling, powering and collecting. On a compact installation that is a small cost. On a spread-out site it can become the largest part of the project, and the cable itself becomes something that can be damaged, cut or struck by lightning.

The NB-WK100 moves that work out of the picture. Solar charging deals with power. The NB-IoT and 2G-GSM connection deals with transport. The cloud system deals with collection and review. What remains on site is the sensor and its mounting, which is a much lighter thing to install and to maintain.

Wired units still have a place, particularly where a controller or logger is already on site and the signal needs to feed a local system. If that describes your project, the store also lists BWSENSING Cost-Effective Dual-Axis Inclinometer (BWM427), and more options can be found in the BWSensing range.

Why does the dual network support matter?

Coverage is rarely the same everywhere. A site may be well served by NB-IoT, or it may only have older GSM service. Because the NB-WK100 supports both NB-IoT and 2G-GSM, the choice of network does not have to be settled before the sensor is specified. For projects across islands, rural roads or remote infrastructure, that flexibility can save a good deal of planning.

It also helps when a project is expanded. A pilot installation near a town and a later installation in a more remote area can use the same type of sensor and the same cloud approach, even if the networks they connect to differ.

Who is the NB-WK100 for?

Civil and geotechnical engineers are the most obvious users. Anyone responsible for slopes, retaining walls, foundations, bridges, towers or similar structures can use a dual axis tilt reading to watch for slow movement over weeks and months.

Utility and infrastructure operators are another group. Their assets are spread out, their sites are often unmanned, and the cost of visiting each one regularly is high. A wireless node that reports by itself fits that pattern well.

Monitoring contractors and system integrators will find the customizable cloud system useful, because it allows the data presentation to be adapted to a client. Teams that need a wired, controller-based solution should look at the wired models in the Sensors category instead. If you are considering the NB-WL300, NB-WM410 or NB-WS2000, ask us about each one separately, since their figures are not given on this page.

What is the NB-WK100 used for?

1. Slope and embankment monitoring. Track slow tilting of ground and retaining structures at sites without mains power.
2. Bridge and pier observation. Watch the inclination of piers, abutments and decks without running signal cable.
3. Tower and pole monitoring. Detect lean in masts, poles and lattice towers spread across a region.
4. Building and foundation settlement. Follow tilt on structures near excavation or construction work.
5. Dam and water-retaining structures. Keep a remote record of angle changes where access is limited.
6. Distributed infrastructure networks. Place many nodes over a large area and review them all from one cloud system.

Pricing and Availability

We do not print prices on this page. A quotation is the way to proceed: tell us the quantity, the site location and the network you expect to use, and we will respond with the details. Delivery, customs and support are arranged together with the quotation, so you know what to expect before you commit. The BWSENSING NB-WK100 is available on this page.

Frequently Asked Questions

What does the NB-WK100 measure?

It measures tilt on two axes, with an accuracy of 0.5° and a resolution of 0.0007°.

How is the NB-WK100 powered?

It uses solar charging. For the battery capacity and the supply voltage, please ask when you request a quotation.

Which networks does it use?

It supports NB-IoT and 2G-GSM. Data is sent to the Customizable Monitoring Cloud System.

Is there a distance limit between the sensor and the base?

The maximum transmission distance is no limit. The sensor reports over the cellular network rather than a local radio link.

Can the monitoring system be adapted to my project?

Yes, the cloud system is customizable. Tell us what you need to see and we will go through the options with you.

What is the IP rating of the NB-WK100?

Please ask for it when you request a quotation, together with the operating temperature.

Where can I buy the NB-WK100 and what does it cost?

You can request a quotation for the BWSENSING NB-WK100 through this page. The cost depends on quantity and delivery, so we give it in the quotation rather than here.

Summary

The idea behind the NB-WK100 is simple: a tilt reading should arrive without anyone having to collect it. Dual axis sensing with 0.5° accuracy and 0.0007° resolution, solar charging, NB-IoT and 2G-GSM connectivity and a customizable cloud system together make that possible on sites where cables and mains power are impractical. For a quotation on the BWSENSING NB-WK100, this page is the starting point.