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NightOwl – TLM

Stand-Alone Remote Wireless Tank Level Monitor
  • Setting Up Smart Devices

Features

Real-Time Monitoring

Real-Time Monitoring

Track tank levels, pump activity, and water flow instantly from anywhere.

Instant Alerts

Instant Alerts

Get notified via app, email, or text when critical thresholds are reached.

Secure Connectivity

Secure Connectivity

IoT-enabled communication ensures dependable, encrypted data transfer.

Simple Setup

Simple Setup

Plug-and-play installation with intuitive configuration — no extra tools required.

Cloud Dashboard

Cloud Dashboard

Access historical trends, system health, and detailed reports in one place.

DC3 C1D1 Radar Level Sensor

Why radar? What makes the DC3 solution so different?

RADAR IS THE BETTER ULTRASONIC

Key Features & Benefits:

Non-Invasive Installation

Easily mounts without the need to drill holes, reducing installation time and costs.

Unmatched Accuracy

Precise radar technology with 2mm accuracy ensures reliable readings, even in extreme conditions.

Long-Lasting Battery Life

Powered by a replaceable lithium battery with up to 10 years of life, minimizing the need for maintenance.

Resistant to Temperature and Buildup

Unlike traditional solutions, DC3’s radar sensor is unaffected by dirt, buildup, or temperature fluctuations, ensuring consistent performance.

Programmable Alarms and Alerts

Set customizable alarms for high/low tank levels or rapid changes in fluid levels to ensure proactive management.

GPS Integration

Global positioning capabilities for enhanced operational insights.

Real-Time Data Reporting

Automatically reports on tank fills or depletions, with configurable reporting schedules via the DC3 Portal.

SCADA Integration

Seamless integration with existing SCADA systems for enhanced operational oversight.

Technical Specifications:

  • Dimensions: Height (Top) = 49.4mm (not including horn section); Diameter = 115mm
  • Weight: 280g (10oz)
  • Material & Build: UV-stabilized PVDF and PP material
  • Operating Temperature: -13°F to 122°F (-25°C to 50°C)
  • Radar Range: 3.2” to 22 feet (10cm to 6.75m)
  • Radar Resolution: Up to 2mm
  • Battery Life: Up to 10 years with a replaceable lithium battery
  • Communications: Cat M1/Cat NB1, Bluetooth Low Energy (BLE) V5.2
  • Environmental Protection: IP68 for outdoor use
  • Compliance: FCC, CE, EMC Directive, LVD Directive, RoHS Directive

Take Control of Your Tank Levels Today

Ensure accuracy, prevent costly surprises, and gain peace of mind with real-time tank monitoring.

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  • Smart Tank Monitoring

Stay Ahead with NightOwl™ TLM

Our wireless tank level monitor delivers accurate, real-time insights into water, chemical, or storage tanks. With built-in IoT connectivity and cloud reporting, NightOwl TLM ensures you’re always informed of system status. Receive instant alerts, reduce emergency callouts, and manage resources more efficiently — all from your smartphone or dashboard.
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  • FAQs

NightOwl - TLM FAQs

Get clear answers to the most common questions about the NightOwl -Tank Level Monitor from installation and connectivity to alerts and system compatibility.

What makes NightOwl-TLM different from Flex or Ultra?
The TLM (Tank Level Monitor) is designed as a stand-alone, remote, battery-powered, wireless tank level monitor specifically for liquid storage tanks. It uses radar technology to measure tank levels from 0.5 to 20 feet and is built for long-term deployment with a 4-year battery life. The TLM takes measurements every hour and publishes data daily, making it ideal for applications that require reliable tank monitoring without frequent maintenance. It's Cl1 Div1 Zone0 certified for hazardous environments.
Can I manage multiple sites with TLM?
No, The NightOwl-TLM is ideal for installations that require monitoring one well. To monitor multiple wells, please explore the NightOwl Flex or Ultra product.
Is TLM secure enough for municipal use?
The TLM uses cellular connectivity to transmit data securely to the cloud-based dashboard. The system includes robust user management with role-based access controls, allowing you to limit who can view or modify each installation.
Do I need professional installation for TLM?
The TLM is designed for straightforward installation by water system professionals. For water tanks, you'll need to cut a 2-inch hole in the tank top (invasive method) to avoid humidity interference. Basic tools required include a drill with a 2-inch hole saw, measuring tape, torpedo level, and possibly silicone sealant. The unit comes with detailed instructions and uses a simple magnetic activation process. Most installations can be completed in under an hour.
Who should choose TLM?

The TLM is ideal for water system operators of small rural water systems, residential systems, and bulk water delivery service providers who need reliable, long-term tank monitoring with minimal maintenance. It's perfect for remote locations where you want 4-year battery life and don't need real-time data (since it reports daily). Choose TLM if you're monitoring water storage tanks, need hazardous area certification, or want a cost-effective solution for basic level monitoring.