by
The Leading Enterprise Internet of Things Solution
Wireless 0-200 VDC Voltage Meters
General Description
The ALTA Wireless Voltage Meter measures the voltage
between two electrical points. It can be connected to the
power and ground of any voltage source and measure
within stated accuracy up to 200 VDC. Perfect for
measuring battery voltage at specified intervals where
sensor data will be wirelessly sent to iMonnit, the online
sensor monitoring system.
• Wireless interface for measuring voltage
• Available in multiple voltage ranges. Measures
voltage up to 200 VDC
0-200 VOLT
METER
Features of Monnit ALTA Sensors
•
•
•
•
•
•
Wireless range of 1,200+ feet through 12+ walls *
Frequency-Hopping Spread Spectrum (FHSS)
Improved interference immunity
Improved power management for longer battery life **
(12+ years on AA batteries)
Encrypt-RF® Security (Diffie-Hellman Key Exchange
+ AES-128 CBC for sensor data messages)
Onboard data memory stores up to 512 readings
per sensor:
- 10-minute heartbeats = 3.5 days
- 2-hour heartbeats = 42 days
Over-the-air updates (future proof)
Free iMonnit basic online wireless sensor monitoring
and notification system to configure sensors, view
data and set alerts via SMS text and email
Principle of Operation
By connecting the leads on the ALTA Wireless Voltage
Meter to the positive and ground terminals of a battery,
users can measure battery voltage through the iMonnit
Online Sensor Monitoring and Notification System.
Notifications can be set up through the online system to
alert the user when battery levels reach a certain point.
The data is also stored in the online system and can be
reviewed and exported as a data sheet or graph.
•
•
*
Actual range may vary depending on environment.
**
Battery life is determined by sensor reporting
frequency and other variables. Other power options
are also available.
Wireless Range Comparison
Wireless Range Comparison
Monnit ALTA
Example Applications
•
•
•
•
•
•
Car battery monitoring
Boat and marine battery monitoring
RV battery monitoring
ATV/motorcycle battery monitoring
Lawn mower and utility vehicle battery monitoring
Many additional applications
Monnit
Other Wireless Platforms
Wifi
Bluetooth
PAGE 1
1.125 in
(28.575 mm)
Pinch
To Chan
2.0 in
(50.8 mm)
CR2
0.875 in
(22.225 mm)
ALTA Commercial Coin Cell Wireless 0-200 VDC Voltage Meter | Technical Specifications
Supply voltage
Current consumption
2.0–3.8 VDC *
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)
-7°C to +60°C (20°F to +140°F) **
+10°C to +50°C (+50°F to +122°F)
0–200 VDC ***
250 VDC ***
0.01 VDC
150mV
@1V or above: +/- 1% (0.5% typical)
@500mV: +/- 2% typical
@250mV: +/- 4% typical
@150mV: +/- 7% typical
Up to 512 sensor messages
1,200+ ft non-line-of-sight
Encrypt-RF® (256-bit key exchange and AES-128 CTR)
0.7 ounces
Industry
Canada
Operating temperature range (board circuitry and coin cell)
Optimal battery temperature range (Coin Cell)
Full-scale voltage
Absolute maximum voltage
Sensor resolution
Minimum voltage detected
Accuracy
Integrated memory
Wireless range
Security
Weight
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.
***
The sensor is capable of measuring above 200 volts but may not meet the specified accuracy above this value.
PinchPower™ Enclosures
_
CR2032 BATTERY
CR2032 BATTERY
+
(press in on the sides)
Pinch
(sensor away from base)
Pull
(sensor back into base)
Press
PAGE 2
2.470
2.470
4.375
3.295
1.111
1.111
ALTA Commercial AA Wireless 0-200 VDC Voltage Meter | Technical Specifications
Supply voltage
Current consumption
2.0–3.8 VDC (3.0–3.8 VDC using power supply) *
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)
-18°C to 55°C (0°F to 130°F) using alkaline
-40°C to 85°C (-40°F to 185°F) using lithium **
+10°C to +50°C (+50°F to +122°F)
0–200 VDC ***
250 VDC ***
0.01 VDC
150mV
@1V or above: +/- 1% (0.5% typical)
@500mV: +/- 2% typical
@250mV: +/- 4% typical
@150mV: +/- 7% typical
Up to 512 sensor messages
1,200+ ft non-line-of-sight
Encrypt-RF® (256-bit key exchange and AES-128 CTR)
3.7 ounces
Industry
Canada
Operating temperature range (board circuitry and batteries)
Optimal battery temperature range (AA)
Full-scale voltage
Absolute maximum voltage
Sensor resolution
Minimum voltage detected
Accuracy
Integrated memory
Wireless range
Security
Weight
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.
***
The sensor is capable of measuring above 200 volts but may not meet the specified accuracy above this value.
Power Options
The standard version of this sensor is powered by two replaceable 1.5 V AA sized batteries (included with purchase). This
sensor is also available with a line power option. The line powered version of this sensor has a barrel power connector
allowing it to be powered by a standard 3.0–3.6 V power supply. The line powered version also uses two standard 1.5 V
AA batteries as backup for uninterrupted operation in the event of line power outage. Power options must be selected at
time of purchase, as the internal hardware of the sensor must be changed to support the selected power requirements.
PAGE 3
Industrial
Wireless
Sensor
2.316 in
(58.84 mm)
3.701 in
(94.0 mm)
Height:
1.378 in
(35.0 mm)
ALTA Industrial Wireless 0-200 VDC Voltage Meter | Technical Specifications
Supply voltage
Current consumption
2.0–3.8 VDC (3.0–3.8 VDC using power supply) *
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)
-40°C to +85°C (-40°F to +185°F) **
-40° to +85°C (-40° to +185°F)
1800 mAh
5VDC/30mA (53mm x 30mm)
0° to 45°C (32° to 113°F)
-20° to 60°C (-4° to 140°F)
600 mAh/>2000 charge cycles (80% of initial capacity)
Optimized for high and low-light operation ***
0–200 VDC ***
250 VDC ***
0.01 VDC
150mV
@1V or above: +/- 1% (0.5% typical)
@500mV: +/- 2% typical
@250mV: +/- 4% typical
@150mV: +/- 7% typical
Up to 512 sensor messages
1,200+ ft non-line-of-sight
Encrypt-RF® (256-bit key exchange and AES-128 CTR)
4.7 ounces
NEMA 1, 2, 4, 4x, 12 and 13 rated, sealed and weather proof
UL Listed to UL508-4x specifications (File E194432)
Industry
Canada
Operating temperature range (board circuitry and battery)
Included battery
Optional solar feature
Max temperature range
Capacity
Solar panel
Charging temperature range
Max temperature range
Included rechargeable battery
Solar efficiency
Full-scale voltage
Absolute maximum voltage
Sensor resolution
Minimum voltage detected
Accuracy
Integrated memory
Wireless range
Security
Weight
Enclosure rating
UL rating
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.
Light present 25% of day yields 125% of operating power to support 10-minute heartbeats.
The sensor is capable of measuring above 200 volts but may not meet the specified accuracy above this value.
PAGE 4
Proper Installation
If the sensor is not connected to the battery (power source)
properly, it will appear that the sensor is broken. Please follow this
wiring diagram to ensure proper performance and detection.
Power Source
Up to 200 VDC
+
-
Wireless Sensor
0-200 VOLT
METER
Commercial Grade Sensors
Monnit commercial grade sensors are designed for applications in ordinary environments (normal room temperature,
humidity and atmospheric pressure). Do not use these sensors under the following conditions as these factors can
deteriorate the product characteristics and cause failures and burnout.
•
Corrosive gas or deoxidizing gas: chlorine gas, hydrogen sulfide gas, ammonia gas, sulfuric acid gas, nitric oxides
gas, etc.
•
Volatile or flammable gas
• Dusty conditions
• Low-pressure or high-pressure environments
• Wet or excessively humid locations
• Places with salt water, oils chemical liquids or organic solvents
• Where there are excessively strong vibrations
• Other places where similar hazardous conditions exist
Use these products within the specified temperature range. Higher temperature may cause deterioration of the
characteristics or the material quality.
Industrial Grade Sensors | Type 1, 2, 4, 4X, 12 and 13 NEMA Rated Enclosure
Monnit’s Industrial sensors are enclosed in reliable, weatherproof NEMA-rated enclosures. Our NEMA-rated enclosures
are constructed for both indoor or outdoor use and protect the sensor circuitry against the ingress of solid foreign objects
like dust as well as the damaging effects of water (rain, sleet, snow, splashing water, and hose-directed water).
•
•
•
•
•
Safe from falling dirt
Protects against wind-blown dust
Protects against rain, sleet, snow, splashing water, and hose-directed water
Increased level of corrosion resistance
Will remain undamaged by ice formation on the enclosure
For more information about our products or to place an order, please contact
our sales department at 801-561-5555.
Visit us on the web at
www.monnit.com.
Monnit Corporation
3400 South West Temple
South Salt Lake, UT 84115
801-561-5555
www.monnit.com
Monnit, iMonnit, ALTA, PinchPower, Encrypt-RF and all other trademarks are property of Monnit, Corp.
© 2018 Monnit Corp. All Rights Reserved.
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