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Nano Sensorics AmpOne

The Wireless LoRaWAN Current Sensor for Single-Phase Current Measurement

The Nano Sensorics AmpOne (manufacturer model designation AMPSENSE1-32) is an advanced sensor for measuring electrical current via an easy-to-install, non-invasive split-core current transformer. It is intended for indoor use and measures single-phase alternating current with an RMS value of up to 32 A. An integrated advanced intelligent (AI) calculation algorithm ensures reliable acquisition of the current. Calibration is not required for the AmpOne.

Data transmission is performed via a Class A LoRaWAN® radio network. The sensor is powered by 3.6 V lithium batteries and achieves a battery life of up to 13 years depending on the configuration. Configuration is performed “over the air” via downlink, allowing the AmpOne to be easily commissioned and integrated into existing LoRaWAN networks.

Precise Single-Phase Current Measurement

The AmpOne continuously records the current of a single phase.

Current Measurement up to 32 A

Measuring range from 1 A to 32 A RMS current, single-phase.

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High Measurement Accuracy

Current measurement accuracy of less than ±1 %.

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Split-Core Current Transformer

Non-invasive installation without interrupting the line, simply clampable around the cable.

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AI Calculation Algorithm

Integrated intelligent algorithm for reliable measured values; no calibration required.

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Up to 13 Years Battery Life

Battery operation without cabling, runtime depending on settings and environmental conditions.

How the AmpOne Is Constructed

The AmpOne enclosure is compact at 121 x 62 x 26 mm and weighs 80 g without battery.

1

Enclosure

Robust plastic enclosure made of ASA+PC-FR, designed for indoor wall mounting. An LED on the front of the enclosure indicates the connection status.

2

Split-Core Current Transformer

A hinged current transformer is connected to the enclosure via a cable and is clamped around the conductor to be measured without interrupting the line, acquiring the single-phase current.

3

Rear Side with Battery Compartment

The rear cover is opened with a screwdriver. Behind it is the battery compartment for two AA lithium batteries (3.6 V, type ER14505).

4

Wall Mounting

After closing the rear cover, the enclosure is fastened to the wall with two suitable screws.

5

Labeling

On the rear of the sensor there is a label with sensor name, serial number, production date, and QR code.

Reliable Radio Connectivity over Long Distances

The AmpOne uses LoRaWAN® for energy-efficient and long-range data transmission.

LoRaWAN® 1.0.3

Class A end device with support for OTAA, ABP, ADR, and Adaptive Channel Setup.

End-to-End Encryption

Securing of the radio transmission via LoRaWAN® AES encryption.

Frequency Band EU863–870 (Standard)

Optionally also available for US902–928, AU915–928, EU433, RU864, or IN865.

Range up to 10 km

Transmission range under line-of-sight conditions; the actual range depends on the environment.

Adjust Settings via Downlink

After installation, the AmpOne can be conveniently configured remotely without having to open the device again.

  • Measurement interval (Tx period) adjustable via downlink on port 3
  • Green status LED can be switched on, off, or briefly toggled via downlink
  • Device reset can be triggered via downlink command
  • Multiple settings can be combined in a single downlink message
  • Optional configuration additionally possible via NFC directly on the device

Simple Commissioning, Low-Maintenance Operation

After inserting the batteries, the AmpOne automatically connects to the LoRaWAN network.

  1. Open the rear cover with a screwdriver
  2. Insert two AA lithium batteries (3.6 V)
  3. Close the rear cover again
  4. Mount the enclosure on the wall with two suitable screws
  5. Clamp the split-core current transformer around the conductor to be measured without interrupting the line
  6. Wait for the connection to be established: The LED flashes for 15 seconds and lights continuously for 3 seconds upon successful connection before going out

If the connection is not established immediately, the sensor automatically makes further connection attempts after 10 seconds, 60 seconds, 10 minutes, 1 hour, and finally every 24 hours. The button on the device can be used to restart the sensor and trigger an immediate new connection attempt. Apart from occasional battery replacement, the AmpOne is maintenance-free and is factory-calibrated; no further calibration is required. The sensor is intended exclusively for indoor use and should not be mounted near ventilation slots, windows, or door openings with constant drafts.

Important Safety Instructions

  • Suitable for indoor use only
  • Do not open, crush, or puncture the enclosure or battery
  • Remove batteries when not in use to prevent leakage
  • Keep the device and battery dry and away from liquids
  • Use only manufacturer-recommended equivalent battery types
  • Do not bend, deform, paint, or place the sensor in a microwave
  • Do not clean with solvents or alcohol; use only a slightly damp cloth
  • Not suitable for metrological or commercial billing purposes

Environmentally Sound Disposal

The AmpOne falls under the Waste Electrical and Electronic Equipment Directive (WEEE Directive 2012/19/EU). The device and its components must be disposed of separately from household and industrial waste at a local collection point. The battery must be disposed of separately.

Areas of Application

According to the manufacturer, the AmpOne is suitable for current measurement in commercial, industrial, and public buildings and can be connected to energy management or building management systems (BMS) as well as SCADA systems.

  • Commercial and public buildings
  • Government buildings
  • Warehouse and logistics buildings
  • Industrial facilities
  • Factories
  • Smart buildings

By monitoring the current, electrical consumers such as lighting (indoor and street lighting), climate control (HVAC), or elevators can, according to the manufacturer, be monitored for anomalies: changes in current consumption can indicate faults or maintenance needs at an early stage. The data obtained also support the analysis of system efficiency, help reduce energy consumption, and contribute to reducing the CO₂ footprint of connected buildings.

The Nano Sensorics AmpOne combines precise single-phase current measurement, non-invasive split-core installation, and battery-powered wireless LoRaWAN connectivity in a compact, low-maintenance sensor.

Frequently Asked Questions

What is the Nano Sensorics AmpOne and what is it used for?

The AmpOne (manufacturer designation AMPSENSE1-32) is a battery-powered, wireless LoRaWAN sensor for single-phase measurement of electrical current up to 32 A via a split-core current transformer. It is suitable for current and load monitoring in commercial, industrial, and public buildings.

Does the power line have to be interrupted for installation?

No. The current transformer is designed as a split-core version and is simply clamped around the conductor to be measured without interrupting the line.

How long does the battery last?

According to the manufacturer, the battery life is up to 13 years, depending on the selected settings and environmental conditions. The sensor is powered by two 3.6 V AA lithium batteries (type ER14505).

Does the AmpOne need to be calibrated?

No. The sensor is factory-calibrated; according to the manufacturer, no further calibration by the user is required.

Can the AmpOne be installed outdoors?

No. The AmpOne is intended exclusively for indoor use and should not be mounted near ventilation slots, windows, or door openings with constant drafts.

How are the measurement interval and other settings configured?

Configuration is primarily performed via LoRaWAN downlink message on port 3, for example to adjust the measurement interval, control the green LED, or reset the device. Optionally, configuration via NFC directly on the device is also possible.

Can the AmpOne be integrated into an energy management or building management system?

Yes, according to the manufacturer, the measurement data from the AmpOne can be transmitted to energy management or building management systems (BMS) as well as SCADA systems.

Questions about the AmpOne?

Our support team in Germany provides free advice on selection, installation, and configuration.

Datasheets
Datasheet 1

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Datasheet 1 (602.44 KB)
Datasheet 2

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Datasheet 2 (938.33 KB)

Nano Sensorics AmpOne

General Data

  • Sensor for measuring electrical current via easy-to-install split-core current transformers
  • Designed for indoor use
  • Single-phase or three-phase version, depending on the selected configuration
  • Integrated intelligent AI calculation algorithm for reliable current measurement
  • LoRaWAN® communication
  • LoRaWAN® Class A end device
  • Over-the-Air configuration
  • Robust plastic enclosure
  • No calibration required
  • Power supply via 3.6 V lithium batteries

Current Measurement

  • Measuring ranges:
    • 1 A ~ 32 A
  • Measurement accuracy: < ±1 %
  • Number of phases: 1-phase
  • Current measurement via split-core current transformer

Sensor & Data Recording

  • Integrated indoor current sensor
  • Configurable sampling interval
  • Configurable data transmission interval
  • Configuration via downlink
  • NFC configuration optional
  • Automatic self-calibration

Power Supply

  • Battery operation with 2 × 3.6 V AA lithium batteries
  • Battery type: ER14505 AA Lithium
  • Battery capacity: 2400 mAh per cell
  • Expected battery life: <13 years, depending on configuration and environmental conditions

LoRaWAN® & Radio

  • Radio technology: LoRaWAN® 1.0.3
  • Device type: Class A end-device
  • LoRaWAN® end-to-end encryption: AES
  • Supported functions: OTAA, ABP, ADR, Adaptive Channel Setup
  • Standard radio region: EU863-870
  • Optionally supported regions: US902-928, AU915-928, EU433, RU864, IN865
  • Link budget: 137 dB (SF7) to 151 dB (SF12)
  • Transmit power: 14 dBm ±1 dBm, region-dependent
  • Receiver sensitivity: up to -132 dBm for LoRa, Spreading Factor 12 and 293 bit/s
  • Receiver sensitivity: up to -118 dBm for FSK, 5 kHz frequency deviation and 1.2 kbit/s
  • Communication range: up to 10 km under line-of-sight conditions
  • Actual transmission range depending on environmental conditions

Data Transmission

  • Current Phase I: 2 bytes
    • MSB: current value in A
    • LSB: one decimal place
  • Current Phase II: 2 bytes
    • MSB: current value in A
    • LSB: one decimal place
  • Current Phase III: 2 bytes
    • MSB: current value in A
    • LSB: one decimal place
  • Battery voltage: 2 bytes
    • First byte: integer voltage value in volts
    • Second byte: two decimal places of the voltage

Mechanical Data

  • Dimensions: 121 × 62 × 26 mm
  • Weight without battery: 80 g
  • Enclosure material: ASA+PC-FR plastic

Environmental Conditions

  • Storage temperature: -10 °C ~ +70 °C

Areas of Application

  • Smart buildings
  • Government buildings
  • Public buildings
  • Industrial facilities
  • Factories
  • Warehouses

Manufacturer information:

UAB “Nano sensorics” 

Elektrenu str. 7 

51193 Kaunas
Litauen 

Telefon: +370 61461649 

Email: info@nanosensorics.com

Responsible person:

Didactum® Security GmbH

Im Mühlenfeld 4

48163 Münster
Deutschland

Fon: (+49) 250 19 71 63 54 / (+49) 171 33 11 577

Email: info@didactum-security.de

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