Principle Of Operation

By con necting theMonnit ALTA wireless pressure meter to a pressurized gas, liquid or vapor supply line, it can measure the pressure within the line and send data to the iMonnit Online Sensor Monitoring and Notification System. The data is stored in the online system and can be reviewed and exported as a data sheet or graph. User customization allows you to set notifications and alerts from the system so you can know immediately if pressure is above or below an optimal range.

Example Interfacing

  • Compressors/compressed air lines
  • Water supply lines
  • Pumping systems
  • Irrigation system pressure
  • Industrial process monitoring
  • Trash compaction equipment



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 **
  • Encrypt-RF ® Security (Diffie-Hellman Key Exchange + AES-128 CBC for sensor data messages)
  • 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
  • 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 Wireless Range Comparison

*Actual range may vary depending on environment.

**Battery life is determined by sensor reporting frequency and other variables. Other power options are also available.







ALTA Commercial AA Wireless Pressure Sensor

Technical Specifications

ALTA Commercial AA Pressure Sensor

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 (batteries)  +10°C to +50°C (+50°F to +122°F) 
Datalogging 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 10.3 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.





ALTA Industrial Wireless Pressure Sensor

Technical Specifications

ALTA Industrial Wireless Pressure Sensor

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 battery)  -40°C to 85°C (-40°F to 185°F) 
Datalogging 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 13.3 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



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