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Monnit Enterprise AC-DC Voltage Wireless Sensor

This sensor allows you to remotely monitor potential differences (voltage) between two electrical points. If voltage deviates from your pre-set limits, you’re alerted by email, text, or call.

Part Number: MNS2-4-W2-VM-xxx

Manufacturer:

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Product Files

Overview
Gateway
iMonnit Software
Specification

Voltage monitoring made easy

This sensor allows you to remotely monitor potential differences (voltage) between two electrical points. If voltage deviates from your pre-set limits, you’re alerted by email, text, or call. If a monitored value rises or falls beyond user-set thresholds, an alert is sent via text, email, or call. Know when essential appliances are operative (helpful for remote locations or decentralized operations).

Retrofit these sensors to legacy machinery, “dumb” devices, solar power units, or material handling equipment within 15 minutes. The sensors monitor the electrical status of assets at user-designated intervals. If this status deviates from a user-determined range during measurement, an alert is issued via text, email, or call.

Remotely Monitor Device Range

Monnit’s Wireless Voltage Meters read the voltage difference between two electrical points and reports back the measured voltage. It is programmed to sleep for a user-given time interval (heartbeat) and then wake up, convert the analogue data, mathematically compute the voltage, and transmit the data to the gateway, where it is then logged into a cloud service. The user can configure defined thresholds and have the system alert on threshold breaches.

This sensor come standard with two replaceable AA batteries. The typical battery life is approximately 10 years.

WARNING: Use caution when interfacing to the Monnit Wireless Voltage Meter. Negative voltages, AC Voltages, or exceeding maximum voltage levels (as outlined in product specifications) WILL DAMAGE the electronics of the Monnit Wireless Sensor. Monnit is not responsible for troubleshooting, replacing or reimbursing damages incurred by disregarding this warning.

Features

Impressive wireless range of up to 1,200 feet through walls
Frequency-hopping spread spectrum (FHSS)
Improved interference immunity
Improved power management for longer battery life
Encrypt-RF® Security (Diffie-Hellman Key Exchange + AES-128 CBC for sensor data messages)
Stores 2000 to 4000 readings if gateway connection is lost (non-volatile flash, persists through the power cycle)
- 10-minute heartbeats = ~ 22 days
- 2-hour heartbeats = ~ 266 days
Over-the-air updates
Free iMonnit basic online wireless sensor monitoring and notification system to configure sensors, view data and set alerts via SMS text and email

Applications

Appliance Monitoring
Line Power Monitoring
Power Coupling Monitoring
HVAC Systems Monitoring
Power Supply Monitoring
Backup Generator Monitoring
Machine Motor Monitoring
Battery Health
Electrical Motors
Blower Motors

IMPORTANT - Sensor Operation

Please note: this sensor requires both an applicable Gateway and iMonnit software to operate. For further information, please refer to the tabs above or related products below.

Monnit Gateway Options

An integral component of any IoT network is the gateway. A gateway device allows for data from sensors to be transmitted to the iMonnit software platform.

Monnit Ethernet Wireless Gateway 4

Monnit’s Ethernet Gateways allow your Monnit Wireless Sensors to communicate with the iMonnit™ Online Wireless Sensor Monitoring and Notification System without the need for a PC. Simply provide power and plug the gateway into an open Ethernet network port with an internet connection. It will then automatically connect with our online servers, providing the perfect solution for commercial locations where there is an active internet connection.

Learn more about the Ethernet Wireless Gateway 4>>

Monnit 4G + Ethernet IoT Gateway

The ALTA® by Monnit Wireless IoT Gateway combines a 4G LTE CAT-M1/NB2 cellular engine and Ethernet platform with Monnit’s wireless access point network to aggregate and communicate data from Monnit ALTA Wireless Sensors. The ALTA IoT Gateway allows ALTA Sensors to operate on the world’s leading cellular networks and stay connected to the Internet. The gateway uses AC main power but also has redundant power through a battery backup lasting up to 60 hours.

To meet the global demand for enterprise IoT deployment, the IoT Gateway communicates with the cloud-based iMonnit® monitoring software via cellular transmission, making it ideal for remote locations or where the Internet isn’t available. The RJ-45 Ethernet jack allows local device configuration, diagnostics, and connectivity backup. The IoT Gateway is instrumental in sending sensor notifications via text, email, or call if user-defined conditions are met or exceeded.

Learn more about the 4G + Ethernet Wireless Gateway 4>>

Online Sensor Monitoring Software

iMonnit is a cloud based mobile internet platform and central hub for managing Monnit and ALTA products. All data is secured on dedicated servers operating Microsoft SQL Server. This online user interface is where all your device settings can be arranged, supervised, and modified to reflect your unique environment. OneTemp will look after the activation and setup of your new online iMonnit account free of charge. There is also a free mobile app for you to stay in control at all times. Start with the basic version or upgrade to iMonnit Premiere to enjoy the full features your Monnit experience can offer.

iMonnit Basic Vs Premiere:

Basic - Free with no ongoing costs
Monnit Basic is included for free with all wireless sensors, providing basic features for you to configure and monitor your sensors online. These basic features only support one network and one registered user on an account.
Premiere - Minimal Annual Fee
iMonnit Premiere allows for enhanced functionality of your wireless sensors and includes an advanced software feature set at a low annual cost. All of iMonnit's advanced features are availble for configuration. You can have more sensors on your account, support multiple users, and view floorplans for all your sensors.

Learn more about the iMonnit Premier Online Software>>

Technical Information - 0-5VDC Voltage Meter
Supply Voltage	2.0-3.8 VDC (3.0-3.8 VDC using power supply) *
Current consumption	0.2 μA (sleep mode), 0.7 μA (RTC sleep), 570 μA (MCU idle), 2.5 mA (MCU active), 5.5 mA (radio RX mode), 22.6 mA (radio TX mode)
Operating temperature range (board circuitry and batteries)	-18°C to 55°C (0°F to 130°F) using alkaline -40°C to 85°C (-40°F to 185°F) using lithium
Optimal battery temperature range (AA)	+10°C to +50°C (+50°F to +122°F)
Voltage range	0-5 Volts DC**
Resolution	~1 mV
Accuracy	+/- (0.006 VDC + 3.0% of Reading)
User-calibrated accuracy	+/- (0.003 VDC + 0.5% of Reading) ***
Open-circuit voltage	~0.00 Volts
Max rated input	10 Volts
Input impedance	13 kOhms
Lead wire length	2 Wires, 1 ft (12 in), Red (+), Black (-), 18 AWG (Custom lengths available upon request)
Datalogging	Datalogs 2000 to 4000 readings if gateway connection is lost (non-volatile flash, persists through the power cycle): - 10-minute heartbeats = ~ 22 days - 2-hour heartbeats = ~ 266 days
Wireless range	1,200+ ft non-line-of-sight
Security	Encrypt-RF® (256-bit key exchange and AES-128 CTR)
Weight	3.7 ounces
Certifications	900 MHz product; FCC ID: ZTL-G2SC1 and IC: 9794A-G2SC1. 868 and 433 MHz product tested and found to comply with: EN 300 220-2 V3.1.1 (2017-02), EN 300 220-2 V3.1.1 (2017-02) and EN 60950

* Hardware cannot withstand negative voltage. Please take care when connecting a power device.
** The sensor is capable of measuring above 5 volts but may not meet the specified accuracy above this value.
*** For best results calibrate at a voltage between 50% and 90% of the voltage range.

Technical Information - 0-10VDC Voltage Meter
Supply Voltage	2.0-3.8 VDC (3.0-3.8 VDC using power supply) *
Current consumption	0.2 μA (sleep mode), 0.7 μA (RTC sleep), 570 μA (MCU idle), 2.5 mA (MCU active), 5.5 mA (radio RX mode), 22.6 mA (radio TX mode)
Operating temperature range (board circuitry and batteries)	-18°C to 55°C (0°F to 130°F) using alkaline -40°C to 85°C (-40°F to 185°F) using lithium **
Optimal battery temperature range (AA)	+10°C to +50°C (+50°F to +122°F)
Integrated memory	Up to 512 sensor messages
Wireless range	1,200+ ft non-line-of-sight
Security	Encrypt-RF® (256-bit key exchange and AES-128 CTR)
Weight	3.7 ounces
Certifications	900 MHz product; FCC ID: ZTL-G2SC1 and IC: 9794A-G2SC1. 868 and 433 MHz product tested and found to comply with: EN 300 220-2 V3.1.1 (2017-02), EN 300 220-2 V3.1.1 (2017-02) and EN 60950

*Hardware cannot withstand negative voltage. Please take care when connecting a power device.
**At temperatures above 100°C, it is possible for the board circuitry to lose programmed memory

Sensing specifications (0-10 voltage meter)
Range	0 - 10 V*
Accuracy	+/-(2.0% of Reading + .002 V)
Calibrated Accuracy	+/-(0.5% of Reading + .002 V)**
Resolution	1 mV
Input impedance	247 kOhm
Open circuit voltage	~0.000 Volts
Max rated input	20 Volts
Lead wire length	2 Wires, 1 ft (12 in), Red (+), Black (-), 18 AWG (Custom lengths available upon request)

* The sensor is capable of measuring above 10 volts but may not meet the specified accuracy above this value.
**For best results calibrate at a voltage between 50% and 90% of the voltage range

Technical Information - 0-200VDC Voltage Meter
Supply Voltage	2.0-3.6 VDC (3.0-3.6 VDC using power supply) *
Current consumption	0.2 μA (sleep mode), 0.7 μA (RTC sleep), 570 μA (MCU idle), 2.5 mA (MCU active), 5.5 mA (radio RX mode), 22.6 mA (radio TX mode)
Operating temperature range (board circuitry and batteries)	-18°C to 55°C (0°F to 130°F) using alkaline -40°C to 85°C (-40°F to 185°F) using lithium **
Optimal battery temperature range (AA)	+10°C to +50°C (+50°F to +122°F)
Absolute maximum voltage	250 VDC
Accurate range	0 to 200 VDC **
Accuracy	+/- (.1V + 1% of reading)
Calibrated accuracy	+/- (.05V + 5% of reading)
Input impedance	1.33 MOhm
Response time	100 ms
Leaded wire specification	2 Wires, 1 ft. (12 in), Red (+), Black (-), 22 AWG (Custom lengths available upon request)
Integrated memory	Up to 3200 sensor messages
Wireless range	1,200+ ft non-line-of-sight
Security	Encrypt-RF® (256-bit key exchange and AES-128 CTR)
Weight	4.0 oz.
Certifications	900 MHz product; FCC ID: ZTL-G2SC1 and IC: 9794A-G2SC1. 868 and 433 MHz product tested and found to comply with: EN 300 220-2 V3.1.1 (2017-02), EN 300 220-2 V3.1.1 (2017-02) and EN 60950

* Circuit cannot withstand negative voltage. Please take care when installing batteries.
** If application exceeds 200 VDC the sensor will return a maximum reading of 200 V.
*** Operation mode must be specified at time of purchase.

Technical Information - 0-500VAC Voltage Meter
Supply Voltage	2.0-3.6 VDC *
Current consumption	0.2 μA (sleep mode), 0.7 μA (RTC sleep), 570 μA (MCU idle), 2.5 mA (MCU active), 5.5 mA (radio RX mode), 22.6 mA (radio TX mode)
Operating temperature range (board circuitry and batteries)	-18°C to 55°C (0°F to 130°F) using alkaline -40°C to 85°C (-40°F to 185°F) using lithium
Optimal battery temperature range (AA)	+10°C to +50°C (+50°F to +122°F)
Accurate range	0-500 VACrms
Absolute maximum input voltage	600 VACrms
Accuracy	+/- (1 Volt + 2% of reading)
User-calibrated accuracy	+/- (.5 Volt + 1% of reading)
Resolution	.1 VACrms
Input impedance	2 MOhm
Response time	~1 Second
Leaded wire specification	2 Wires, 1 ft (12 in), Black (Hot), White (Neutral), 18 AWG (Custom lengths available upon request.)
Datalogging	Datalogs 2000 to 4000 readings if gateway connection is lost (non-volatile flash, persists through the power cycle): - 10-minute heartbeats = ~ 22 days - 2-hour heartbeats = ~ 266 days
Wireless range	1,200+ ft non-line-of-sight
Security	Encrypt-RF® (256-bit key exchange and AES-128 CTR)
Weight	4.0 oz.
Certifications	900 MHz product; FCC ID: ZTL-G2SC1 and IC: 9794A-G2SC1. 868 and 433 MHz product tested and found to comply with: EN 300 220-2 V3.1.1 (2017-02), EN 300 220-2 V3.1.1 (2017-02) and EN 60950

* Circuit cannot withstand negative voltage. Please take care when installing batteries.