The LevelLog is a groundwater monitor from VRM for the continuous measurement of groundwater levels in monitoring wells. Installation requires no tools, no calibration is needed, and measurements can be accessed immediately via a web portal or app. No contact with the groundwater: the measurement is performed acoustically via sound signals.
The LevelLog is placed on top of the monitoring well using an adapter and pipe coupling. An internal speaker and microphone measure the distance to the water level via sound signals. The measurement takes into account the acoustic properties of the pipe and the current temperature. Data is sent via LTE-M to the VRM LevelLog web portal.
| Specification | Value |
|---|---|
| Measuring range | 25 cm to 20 m |
| Measurement accuracy | +/- 5 mm |
| Measurement resolution | 1 mm |
| Pipe diameters | Ø 25 to 63 mm |
| Pipe couplings | Ø 25, 32, 33, 40, 50, 60, 63 mm |
| Communication | LTE-M / E-SIM |
| Data memory | 100 measurements (buffer for signal loss) |
| Battery | Lithium 3.6V 6.5 Ah |
| Battery life | Indicative 43,800 measurements |
| Dimensions | 90 x 90 x 125 mm |
| Weight | 260 grams |
| Water resistance | IP-X6 |
| Warranty | 1 year |
The VRM LevelLog web portal is accessible via browser on PC, tablet, and smartphone. The app (Android and iOS) offers limited functionalities for viewing and alarms. Through the portal, you manage locations, installations, measurement protocols, and alerts. Data export is possible as CSV, Excel, or PDF. If you have your own measurement system, ask us about the possibilities for an API connection.
The LevelLog operates on a subscription basis via the VRM LevelLog portal. The administrator account is created by VRM after a subscription is finalized.
For standard products and repeat orders, please use the webshop at vrm.nl. For custom solutions, large volumes, or technical advice, please request a quote via the contact form or call +31 (0)55 533 54 66.
That is possible. Add the desired items to your shopping cart and select ‘request a quote‘ instead of ‘checkout’ in the cart.
The quote is, of course, completely without obligation and does not commit you to anything.
Are you not yet a business customer but would like to become one?
Download the ‘Become a VRM customer’ form, fill it out completely, and email it to verkoop@vrm.nl. We will verify the information and register you as a customer. You will then receive instructions from us on how to log in.
VRM only supplies to business customers. For this reason, you can only order from our webshop after your registration has been approved or if you are already a VRM customer.
It is not possible to apply for an account and place orders without a Chamber of Commerce (KvK) number.
No. Use only the corresponding BioBuis items, otherwise the benefit of full biodegradability will be lost.
Yes. The BioBuis does not adversely affect the soil sample and therefore meets this requirement.
The technical lifespan is 1 year from the date of installation. Preferably take samples within a maximum of 3 months after installation.
That depends on the borehole diameter, the filter gravel, and the application. Please check the dimensions on the product page or contact us for tailored advice.
For one-off exploratory research (NEN 5740), standard PVC monitoring wells with threaded connections without glue are approved in accordance with the PFAS Sampling Guidelines. For long-term monitoring, virgin HDPE is recommended. Pump hoses must always be made of HDPE or silicone: no LDPE, no Teflon.
Yes. VRM monitoring wells and filter products comply with the material and installation requirements of BRL SIKB 2000 Protocol 2001 and 2002.
PVC is the standard for most dewatering applications. HDPE is preferred in cases of aromatic contamination or chemically harsher soil conditions. VRM provides advice based on your specific situation.
Yes. The LevelLog communicates via LTE-M and is directly accessible through the VRM LevelLog web portal. Multiple loggers can be managed within a network, featuring interactive map displays, alerts, and data export. No calibration or tools are required for installation.
In accordance with the KIWA BRL K567 standard, the BioBuis has a lifespan of at least 1 year after installation. VRM recommends completing the sampling period within that year. After use, the borehole is sealed with Mikolit clay pellets or clay seals, available from VRM.
VRM is certified for KIWA BRL-K561 (monitoring wells and fittings for drinking water and groundwater monitoring), KIWA BRL K567 (BioPipe), ISO 9001 (quality management), and PSO Step 3 and 30+ (social entrepreneurship). Certificates are available for download on the quality page.
NEN 6693 is the new standard for soil descriptions in boreholes and monitoring wells, replacing NEN 5104 and NEN 5706. The standard is leading within the BRO (Key Registry for the Subsurface) and environmental soil research. VRM documentation aligns with NEN 6693.
Yes. VRM produces in-house in Apeldoorn. Customisation in diameter, length, and perforation is possible for well screens, piezometers, infiltration pipes, and plastic components. From single items to larger series. Request a quote via the contact form.
For standard products and repeat orders, please use the webshop at vrm.nl. For custom solutions, large volumes, or technical advice, please request a quote via the contact form or call +31 (0)55 533 54 66.
Standard products in stock are delivered the next business day in the Netherlands if ordered before 2:00 PM. Delivery to Belgium takes an additional day. Other countries: 3 to 5 business days. Specials and custom work are available upon request.
Unfortunately, we did not have all the items you ordered in stock, resulting in a backorder.
VRM will not charge any shipping costs for the items that are delivered at a later date.
Shipping costs are charged depending on the order value, the nature of the shipment, and the destination.
An overview can be found on the shipping costs page.
This depends on the time of ordering, stock levels, and destination.
An overview can be found on the delivery-time page.
For standard products and repeat orders, please use the webshop at vrm.nl. For custom solutions, large volumes, or technical advice, please request a quote via the contact form or call +31 (0)55 533 54 66.
Yes. Existing customers can order directly via the webshop at vrm.nl. For new customers or questions regarding an account: please call 055 533 54 66 or send a message via the contact form.
Using the search bar at the top of the screen, you will be able to find most items. If that is not the case, please first try a different (less specific) term. Searching for part of the description will also yield results.
Tried everything and still cannot find it? Please contact us. We may have the item in stock after all, or we may be able to order it for you.
Cancellation is possible as long as you have not yet received the shipping notification (email) for your order. Once this shipping notification has been sent, changes are no longer possible.
An appointment will have to be made to collect the return shipment. The costs of the return shipment will be charged to you.
For specially ordered or custom-made items, the possibility of cancellation will be assessed on a case-by-case basis.
As long as you have not yet received the shipping notification (e-mail) for your order, changes are possible. After this shipping notification, changes can no longer be made.
For specially ordered or custom-made items, we will have to assess on a case-by-case basis whether a change is still possible.
For standard products and repeat orders, please use the webshop at vrm.nl. For custom solutions, large volumes, or technical advice, please request a quote via the contact form or call +31 (0)55 533 54 66.
That is possible. Add the desired items to your shopping cart and select ‘request a quote‘ instead of ‘checkout’ in the cart.
The quote is, of course, completely without obligation and does not commit you to anything.
Are you not yet a business customer but would like to become one?
Download the ‘Become a VRM customer’ form, fill it out completely, and email it to verkoop@vrm.nl. We will verify the information and register you as a customer. You will then receive instructions from us on how to log in.
VRM only supplies to business customers. For this reason, you can only order from our webshop after your registration has been approved or if you are already a VRM customer.
It is not possible to apply for an account and place orders without a Chamber of Commerce (KvK) number.
No. Use only the corresponding BioBuis items, otherwise the benefit of full biodegradability will be lost.
Yes. The BioBuis does not adversely affect the soil sample and therefore meets this requirement.
The technical lifespan is 1 year from the date of installation. Preferably take samples within a maximum of 3 months after installation.
That depends on the borehole diameter, the filter gravel, and the application. Please check the dimensions on the product page or contact us for tailored advice.
For one-off exploratory research (NEN 5740), standard PVC monitoring wells with threaded connections without glue are approved in accordance with the PFAS Sampling Guidelines. For long-term monitoring, virgin HDPE is recommended. Pump hoses must always be made of HDPE or silicone: no LDPE, no Teflon.
Yes. VRM monitoring wells and filter products comply with the material and installation requirements of BRL SIKB 2000 Protocol 2001 and 2002.
PVC is the standard for most dewatering applications. HDPE is preferred in cases of aromatic contamination or chemically harsher soil conditions. VRM provides advice based on your specific situation.
Yes. The LevelLog communicates via LTE-M and is directly accessible through the VRM LevelLog web portal. Multiple loggers can be managed within a network, featuring interactive map displays, alerts, and data export. No calibration or tools are required for installation.
In accordance with the KIWA BRL K567 standard, the BioBuis has a lifespan of at least 1 year after installation. VRM recommends completing the sampling period within that year. After use, the borehole is sealed with Mikolit clay pellets or clay seals, available from VRM.
VRM is certified for KIWA BRL-K561 (monitoring wells and fittings for drinking water and groundwater monitoring), KIWA BRL K567 (BioPipe), ISO 9001 (quality management), and PSO Step 3 and 30+ (social entrepreneurship). Certificates are available for download on the quality page.
NEN 6693 is the new standard for soil descriptions in boreholes and monitoring wells, replacing NEN 5104 and NEN 5706. The standard is leading within the BRO (Key Registry for the Subsurface) and environmental soil research. VRM documentation aligns with NEN 6693.
Yes. VRM produces in-house in Apeldoorn. Customisation in diameter, length, and perforation is possible for well screens, piezometers, infiltration pipes, and plastic components. From single items to larger series. Request a quote via the contact form.
For standard products and repeat orders, please use the webshop at vrm.nl. For custom solutions, large volumes, or technical advice, please request a quote via the contact form or call +31 (0)55 533 54 66.
Standard products in stock are delivered the next business day in the Netherlands if ordered before 2:00 PM. Delivery to Belgium takes an additional day. Other countries: 3 to 5 business days. Specials and custom work are available upon request.
Unfortunately, we did not have all the items you ordered in stock, resulting in a backorder.
VRM will not charge any shipping costs for the items that are delivered at a later date.
Shipping costs are charged depending on the order value, the nature of the shipment, and the destination.
An overview can be found on the shipping costs page.
This depends on the time of ordering, stock levels, and destination.
An overview can be found on the delivery-time page.
For standard products and repeat orders, please use the webshop at vrm.nl. For custom solutions, large volumes, or technical advice, please request a quote via the contact form or call +31 (0)55 533 54 66.
Yes. Existing customers can order directly via the webshop at vrm.nl. For new customers or questions regarding an account: please call 055 533 54 66 or send a message via the contact form.
Using the search bar at the top of the screen, you will be able to find most items. If that is not the case, please first try a different (less specific) term. Searching for part of the description will also yield results.
Tried everything and still cannot find it? Please contact us. We may have the item in stock after all, or we may be able to order it for you.
Cancellation is possible as long as you have not yet received the shipping notification (email) for your order. Once this shipping notification has been sent, changes are no longer possible.
An appointment will have to be made to collect the return shipment. The costs of the return shipment will be charged to you.
For specially ordered or custom-made items, the possibility of cancellation will be assessed on a case-by-case basis.
As long as you have not yet received the shipping notification (e-mail) for your order, changes are possible. After this shipping notification, changes can no longer be made.
For specially ordered or custom-made items, we will have to assess on a case-by-case basis whether a change is still possible.
