Cellular Water Meter Ultrasonic water meter with built-in 4G LTE, no gateway
The Cellular Water Meter is an ultrasonic water meter with built-in 4G LTE and no WiFi or gateway: Class 2 (R250) accuracy, IP68 protection and a sealed battery rated for more than 6 years, in DN20 (3/4 in) and DN25 (1 in) sizes.
What It Measures
Water Volume & Flow
Ultrasonic transit-time · Class 2 · R250
Water Temperature
T50 (0.1 °C to 50 °C / 32 °F to 122 °F)
Leak & Reverse-Flow Alarms
Continuous flow, backflow, empty pipe, tamper
About Cellular Water Meter
Relevant standards and guidance: ISO 4064-1, water meters for cold potable water and hot water
Compare LoggerFlex water and utility metering devices
The Cellular Water Meter, and the devices that bring existing meters with a 4-20 mA, Modbus, M-Bus or pulse output into LF Cloud.
| Model | Part number | Type | Measures or reads | Connectivity | Status |
|---|---|---|---|---|---|
| Cellular Water Meter | CWMETER | Ultrasonic water meter with built-in 4G LTE, no gateway | Ultrasonic transit-time, no moving parts | Built-in 4G LTE with a data SIM managed by LoggerFlex; no WiFi, gateway or wiring | Current |
| BLOCK ANALOG 4-20 mA | BLA420 | WiFi 4-20 mA analog input data logger | 4-20 mA analog input on Port III, with an included terminal adapter (R and GND) | 2.4 GHz WiFi, no gateway | Current |
| Single Modbus Bridge | MODGAT | Modbus RTU to cloud bridge over WiFi or cellular | RS485 Modbus RTU with configurable registers | WiFi and cellular, plus BLE | Current |
| LF M-Bus Cloud Bridge | LFMBUS | M-Bus meter reading bridge to LF Cloud | M-Bus and Modbus master | LAN and WiFi | Current |
| BLOCK Pulse Counter | BLPULS | WiFi pulse counter for water, gas and electricity meters | Cumulative pulses from two meters, plus ambient temperature and humidity | 2.4 GHz WiFi, no gateway | Being retired |
Gateway-Free Water Metering
Ultrasonic measurement and cellular reporting in a single device.
Built-In, Managed 4G SIM
The data plan is already inside and managed by us — no Wi-Fi to join, no gateway, no wiring. Wherever there is 4G LTE coverage, the meter comes online on its own.
Class 2 Ultrasonic, R250 Turndown
Transit-time sensing has no moving parts to wear or clog, so accuracy stays stable for life — including at the very low flows that reveal a leak.
IP68 with a 6-Year Battery
Lead-free composite body for potable water and a sealed 6-year lithium cell — install it in a buried, flooded, or outdoor pit with no power on site.
Built for Sites Without Infrastructure
Sub-Metering & Cost Allocation
Split shared water costs across units based on what each one actually consumes, where local rules allow, with data exports.
Remote Leak Detection
Spot continuous overnight flow or abnormal consumption and raise an alarm before the bill — or the water damage — arrives.
Remote Sites & Irrigation
Wells, fields, job sites, and buildings with no Wi-Fi — the meter reports on its own wherever there is 4G LTE coverage.
Technical Specifications
- Connectivity
- 4G LTE cellular
- Data SIM
- Built-in (170+ countries)
- Measurement
- Ultrasonic transit-time
- Accuracy
- Class 2 (ISO 4064 / OIML R49)
- Water Temp.
- T50 (up to 50 °C (122 °F))
- Battery Life
- Sealed lithium, rated 6+ years
- Protection
- IP68 submersible
- Body Material
- Lead-free composite
- Metrological Range
- R250
- Data & Cloud
- Hosted in Canada
- Max. Pressure
- MAP16 (16 bar, 232 psi)
- Sizes
- DN20 (3/4 in) & DN25 (1 in)
Available Sizes & Flow Specifications
| Specification | DN20 (3/4") | DN25 (1") |
|---|---|---|
| Connection thread | 1" NPSM male | 1¼" NPSM male |
| Nominal flow Q3 | 4.0 m³/h (17.6 US gpm) | 6.3 m³/h (27.7 US gpm) |
| Metrological range (R) | R250 | R250 |
| Overall length L | 130 mm (5.1 in) | 160 mm (6.3 in) |
| Height H | 99 mm (3.9 in) | 105 mm (4.1 in) |
| Start flow | 2.5 L/h (0.66 US gal/h) | 4 L/h (1.06 US gal/h) |
Both sizes share the same 4G cellular electronics, managed data SIM, IP68 rating and sealed battery rated for more than 6 years. The body is lead-free composite, for potable water.
Included connectivity: a built-in data plan — free for the first 5 years, then CA$12 a year per meter (about $1 a month), billed annually. No contract, no SIM to buy.
Install Anywhere
- No straight pipe (U0 · D0)
- Mount horizontal or vertical
- Threads inline in minutes
- Measures reverse flow
Standards & Ratings
- ISO 4064
- OIML R49
- Lead-free
- Class 2
- IP68
Everything in the dashboard
- Automatic remote reads
- Sub-metering by unit or zone
- Custom consumption alarms
- Leak & continuous-flow alerts
- Share with unlimited users
- Trends, charts & Excel export
- Data & servers in Canada
Request a quote
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OEM / custom version available
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