MachineU > China Products > Consumer Electronic > Smart Electronics > Smart Remote Control

Wireless LoRa Electronic Water Tank/Reservoir Level High/Low Alarm Remote Control Box

Specifications

Model Number :

QWYB-560

Sensor :

Two-wire 4–20 mA transmitter

Price :

Negotiable

Packaging Details :

Carton or wooden box

Operating Environment :

-20°C to +55°C, Relative Humidity: ≤60% RH

Payment Terms :

L/C,D/A,D/P,T/T,Western Union

Relative Humidity :

≤60%

Place of Origin :

China

MOQ :

1Set

Supply Ability :

100PCS/Month

Operating Temperature :

-20°C to +55°C

Power Supply :

AC 220V ±15%, 50Hz ±1%

Product Name :

Wireless Level Controller

Delivery Time :

5-8 work days

Operating Voltage :

DC 3.6V battery ES26500 (12V/24V/220V optional)

Brand Name :

QINWEIYB

Transmission Method :

LoRa wireless communication

Description

Are You Facing These Water Tank Monitoring Challenges?

Manual inspections are risky and inefficient — sending workers to climb tanks or enter confined reservoir spaces just to check water levels wastes hours every week and poses serious safety hazards.
Pump burnout from dry running — without reliable low-water alerts, pumps run dry and burn out, leading to thousands in repair costs and unplanned downtime.
Costly tank overflows — unnoticed overflows waste precious water resources, damage surrounding infrastructure, and can trigger environmental compliance violations.
Signal cable installation is a budget killer — running cables from a remote tank to the control room can cost more than the monitoring equipment itself, especially at distances over 100 meters.
No real-time visibility — relying on periodic manual checks means you never truly know your water levels between inspections, leaving your operations exposed to risk.

Operating Environment Analysis

Before selecting a level monitoring solution, understanding your operating environment is critical. Below is the complete environmental profile for which the QWYB-560 is engineered:

Industries Served	Fire protection (firewater tanks & reservoirs), municipal water supply, industrial process water, agricultural irrigation, livestock farming, construction site temporary storage, oil & gas storage (non-corrosive media)
Measurement Media	Clean water, raw water, treated water, well water, rainwater, light oil, diesel fuel, and other non-corrosive, low-to-medium viscosity liquids
Temperature Range	-20°C to +55°C (-4°F to +131°F) — engineered for outdoor, all-weather deployment in diverse climate zones
Pressure Range	Standard: 0–5 m water level; Extended: 0–10 m liquid level and 0–2.5 MPa pressure versions available upon request
Corrosivity	Product is rated for non-corrosive media only; submersible probe housing is corrosion-resistant for outdoor humidity and mild environmental exposure
Viscosity	Suitable for low to medium viscosity liquids; not designed for sludge, heavy slurry, high-sediment mud, or high-viscosity fluids
Installation Conditions	Probe: submersed directly into the tank or reservoir (outdoor installation); Control Unit: wall-mounted indoors; No signal wiring required between sensor and display unit

Why Traditional Solutions Fall Short

Many customers come to us after trying conventional monitoring methods that simply don't deliver. Here is why:

Wired 4–20 mA Sensors	Cabling costs skyrocket when control rooms are 100–500+ meters from tanks; cables are vulnerable to lightning strikes, rodent damage, and corrosion; ongoing cable maintenance adds hidden long-term costs.
Mechanical Float Switches	Moving parts jam, freeze, or corrode over time; provide only binary on/off signals — no real-time continuous level measurement; accuracy degrades significantly in turbulent or sediment-heavy water.
Ultrasonic Level Sensors	Performance degrades with foam, vapor, steam, dust, and temperature gradients; enclosed tanks with condensation produce false echoes; limited effective range in large or deep tanks.
Manual Dip-Stick Inspection	Labor-intensive and provides only point-in-time snapshots; no alarm capability for overnight emergencies; inconsistent readings between different operators; zero data-logging for trend analysis.
GSM/GPRS Telemetry	Requires SIM cards with recurring monthly data fees; dependent on cellular tower coverage which is notoriously poor at remote tank sites; adds unnecessary ongoing operational expenses.

The QWYB-560 LoRa Wireless Level Control System: Built for Remote Monitoring

The QWYB-560 combines a high-precision submersible static-pressure level probe with LoRa (Long Range) wireless communication technology to deliver a complete wireless monitoring and automatic control solution. The probe continuously measures liquid level by detecting hydrostatic pressure, then transmits data wirelessly over distances up to 5 km to the indoor control unit — eliminating 100% of signal cabling between tank and control room.

Core Capabilities at a Glance:

24/7 Real-Time Level Display — digital readout of current water level on the control unit panel
High / Low Level Alarms — configurable alarm thresholds with audible and visual alerts when levels exceed safe limits
Automatic Pump Start / Stop Control — pumps activate when water drops below minimum setpoint and shut off when reaching maximum
One Sensor, Multiple Displays — optional one-to-two (or more) configuration enables monitoring at different locations simultaneously
Fully Unattended Operation — once configured, the system runs autonomously without manual intervention

Technical Advantages of the QWYB-560

Long-Range LoRa Transmission	Up to 5 km wireless range in open terrain; penetrates obstacles better than Wi-Fi, Bluetooth, or Zigbee; operates on license-free ISM bands — no spectrum licensing fees
Zero Signal Wiring	Complete wireless link between outdoor probe and indoor control unit — saves 60–80% on installation costs compared to wired alternatives
Explosion-Proof Sensor Housing	Certified explosion-proof enclosure on the submersible probe for safe use in firewater tanks and outdoor industrial reservoirs
Dual Display Capability	On-site reading via local sensor display plus centralized monitoring via indoor control unit — no need to visit the tank for routine checks
Battery-Powered Sensor Option	DC 3.6V battery (ES26500) powered sensor — ideal for sites without convenient power access; 12V/24V/220V options also available
Dry Contact Relay Output	Upper and lower limit dry contact outputs rated ≤10A; active control output rated 220VAC ≤15A — directly drives pumps, valves, and external alarm systems
High-Accuracy Static Pressure Sensing	Two-wire 4–20 mA transmitter delivers precise, stable readings; probe is resistant to sediment interference and suitable for turbid water
Configurable Alarm Thresholds	Freely set upper and lower alarm limits through the control unit interface; supports both audible alarms and dry contact relay activation

Simple, Low-Cost Installation

One of the strongest advantages of the QWYB-560 is its plug-and-play installation. Unlike wired systems that require trenching, conduit, and expensive cable runs, setup is straightforward:

Step 1 — Probe Placement	Lower the submersible probe directly into the tank or reservoir. No mounting brackets, no precise alignment required. The probe simply sits at the bottom or hangs at your desired measurement depth.
Step 2 — Control Unit Mounting	Wall-mount the indoor control unit (270 × 210 × 70 mm) in your control room, pump house, or office — anywhere within the LoRa wireless range of the sensor.
Step 3 — Power Connection	Connect the control unit to standard AC 220V power. If using battery-powered sensor, insert the battery; otherwise, connect sensor to the appropriate power source.
Step 4 — Wireless Pairing	The sensor and control unit establish a LoRa wireless link automatically. No network configuration, no IP addresses, no IT expertise needed.
Step 5 — Set Thresholds & Go	Configure your high/low alarm levels and pump start/stop setpoints through the intuitive control panel interface. The system is now operational.

Typical installation time: under 2 hours for a complete setup. No specialized engineering team required.

Real-World Application Cases

Case 1: Building Firewater Tank Monitoring

Industry	Commercial Building Fire Protection
Measured Media	Clean water (fire reserve)
Temperature	-5°C to +45°C (rooftop tank, seasonal variation)
Pressure	0–3 m water column
Installation Environment	Rooftop firewater tank, 18 floors above control room; outdoor exposed
Customer Problem	Fire safety regulations required 24/7 water level monitoring of the rooftop reserve tank. Running signal cables 18 floors down to the B1 control room was quoted at over $8,000. Manual daily roof inspections were the existing practice, but unreliable during bad weather and night shifts.
Solution	Installed QWYB-560 with submersible probe in the rooftop tank and control unit in the B1 fire pump room. LoRa wireless transmission covered the 90-meter vertical distance with strong signal stability.
Installation Location	Probe: rooftop firewater tank bottom; Control unit: B1 fire pump room wall
Result	Zero cabling cost. Full compliance with fire safety monitoring requirements. Automatic alarm triggers if water drops below 50% reserve capacity. Building management saved approximately $7,500 in installation costs versus wired solution. System has operated uninterrupted for 18 months.

Case 2: Agricultural Irrigation Reservoir Management

Industry	Large-Scale Agricultural Irrigation
Measured Media	Raw water (river-diverted irrigation water)
Temperature	+5°C to +40°C (open reservoir, tropical climate)
Pressure	0–5 m water column
Installation Environment	Open-air irrigation reservoir, 1.2 km from pump control station; dusty and high-humidity conditions
Customer Problem	A 500-hectare farm relied on a single reservoir for all irrigation. The pump operator had no remote visibility of the reservoir level, leading to frequent pump dry-running during peak irrigation season. Previous attempts with ultrasonic sensors failed due to wind and surface turbulence. Wired solution was too expensive at 1.2 km distance.
Solution	Deployed QWYB-560 with LoRa wireless link across 1.2 km from reservoir to pump house. Installed two display units: one at the pump house and one at the farm manager's office.
Installation Location	Probe: reservoir bottom, fixed to a weighted base; Control units: pump house and farm office
Result	Eliminated all pump dry-running incidents. Automatic pump shutdown when water level approaches minimum. Farm saved an estimated $12,000 annually in pump repair costs and reduced water waste by 15% through better level management.

Case 3: Industrial Process Water Storage Monitoring

Industry	Food & Beverage Processing Plant
Measured Media	Treated process water
Temperature	+10°C to +35°C
Pressure	0–4 m water column
Installation Environment	Indoor storage tank in production building; control room 200 m away in separate building across a paved yard
Customer Problem	Production line shutdowns occurred twice monthly due to unexpected low water levels in the process water tank. No automated monitoring existed — operators checked levels manually between shifts. Inter-building cabling across the yard would have required trenching through concrete, with a quote exceeding $5,000.
Solution	QWYB-560 sensor installed in the process water tank; control unit mounted in the production control room. LoRa signal passes through building walls across 200 m distance reliably.
Installation Location	Probe: indoor process water tank; Control unit: production control room wall
Result	Zero production downtime due to water shortages since installation (12+ months). Operators monitor levels in real time from the control room. Automatic low-water alarm provides 30-minute advance warning before critical levels are reached. ROI achieved within 4 months through eliminated downtime.

Frequently Asked Questions

Q1: What is the maximum wireless transmission distance of the LoRa level sensor?

The QWYB-560 supports LoRa wireless transmission up to 5 km (3.1 miles) in open terrain. Actual range varies depending on obstacles such as buildings, dense walls, and terrain. In typical industrial environments with some obstructions, reliable range is typically 1–3 km. For longer distances or challenging environments, contact us for a site-specific assessment.

Q2: Does the system require a SIM card or monthly data plan?

No. The QWYB-560 uses LoRa radio frequency communication directly between the sensor and control unit. There are no SIM cards, no monthly data fees, and no cellular network dependency. This makes it ideal for remote locations where cellular coverage is poor or non-existent.

Q3: Can one sensor display readings on multiple control units?

Yes. The QWYB-560 supports an optional one-to-multiple configuration. A single submersible sensor can transmit data to multiple control units placed at different locations — for example, one in the pump house, one in the security office, and one in the facility manager's office.

Q4: How accurate is the static pressure level measurement?

The two-wire 4–20 mA transmitter delivers high accuracy with a typical error margin of ±0.5% of full scale. The probe uses a temperature-compensated sensor to maintain accuracy across the full operating temperature range of -20°C to +55°C.

Q5: Is the system suitable for outdoor use in harsh weather?

The submersible probe features an explosion-proof, weather-resistant enclosure designed for outdoor tank and reservoir installations. It operates reliably in temperatures from -20°C to +55°C and relative humidity up to 60% RH. The indoor control unit should be mounted in a protected environment.

Q6: Can this system measure oil or diesel levels?

Yes. The QWYB-560 is compatible with water, oil, diesel, and other non-corrosive liquids. The static pressure measurement principle works across different liquid densities. Please specify your target media when inquiring so we can verify compatibility and calibration requirements.

Q7: How long does the battery-powered version last?

The DC 3.6V ES26500 battery typically provides 12–18 months of continuous operation under normal conditions, depending on transmission frequency and environmental temperature. For sites requiring longer intervals between battery changes, 12V/24V/220V hardwired power options are available.

Q8: What is the minimum order quantity and lead time?

The minimum order quantity is 1 set, making it accessible for pilot projects and single-site deployments. Standard delivery time is 5–8 working days. Bulk orders and OEM customization are also available — contact us for volume pricing and production schedules.

Ready to Solve Your Water Level Monitoring Challenges?

Get a customized quote, ask for a technical consultation, or request a product demonstration today. Our engineering team will respond within 24 hours with a solution tailored to your specific application.

Send your message to this supplier

Please reply me within 24 hours.

Yes! I would like your verified suppliers matching service!

Send Now

Submission successful!