NTI® - Network Technologies Incorporated

Monitor outdoor environment irrigation
temperature humidity SMS text alert

weatherproof frost event thermometer gauge

Outdoor Environment Monitoring System

Provides early warnings with wireless GSM before critical events turn into disaster.

Also known as: Remote Outdoor Environment Monitoring System, monitor crop fields,
outdoor thermometer, temperature humidity sensor reading, outdoor temperature/frost alert, pressure gauge.

No longer available

Additional Product Information

View Application Note Application Note: Alerts Crop Growers of Frost Events and Irrigation System Failures.
View Data Sheet Data Sheet (PDF)

Outdoor monitoring system for monitoring critical environmental conditions such as temperature, frost, humidity and liquid detection
ENVIROMUX-MINI-O with ENVIROMUX-TO-7 Temperature Sensor

Designed and Manufactured in the U.S.A.

RoHS Compliant SUN PC Multi-Platform KVM Switch

Features & Applications

The ENVIROMUX® Outdoor Environment Monitoring System monitors environmental conditions, such as temperature, water pressure, humidity, water leakage and more. When a sensor goes out of range of a configurable threshold, the system will notify you via SMS messages from the built-in GSM or 3G modem. It comes in a sealed, weatherproof, lockable enclosure, making it suitable for harsh environments. The system is ideally suited to alert crop growers of frost events and irrigation system failures.
  • Sensors supported:
    • 2 temperature/humidity sensors
      • Humidity sensor requires proper installation to protect it from the elements.
    • 1 liquid detection sensor
    • 4 digital inputs sensitive to contact closure
  • Built-in GSM or 3G modem for sending text messages when alerts occur.
  • Easily configured via HTTP web page.
  • Hinged door secured by two latches and a 0.12" diameter eyelet for securing with user-supplied lock.
  • Weatherproof enclosure.
    • Designed to IP65 and NEMA 3 specifications.
    • Includes wall-mounting and pipe-mounting brackets
  • Ideal for informing crop growers of critical environmental conditions.
    • Use the ENVIROMUX-TO-x outdoor temperature sensor to be alerted when frost events occur.
    • Use the ENVIROMUX-PS50 or ENVIROMUX-PS150 pressure switch sensor to be notified if an irrigation pump stops working or if irrigation system lines become clogged.


Temperature Inputs
  • Two female RJ45 connectors for connecting outdoor temperature sensors.
Water Detection Cable Input
  • One screw terminal pair for connecting liquid detection sensor.
    • Additional water detection sensors can be connected to the dry contact closures.
  • Output voltage: +5V DC.
  • Current limited to 10mA
  • Maximum resistance to close contact: 300K Ohm
Dry Contact Closures
  • Four screw terminal pairs for connecting dry contact devices.
  • Potential-free.
  • Output voltage: +5 V DC
  • Current limited to 10 mA
  • Maximum resistance to close contact: 300K Ohm
Ethernet Port
  • One female RJ45 connector.
  • 10 Base-T Ethernet interface.
  • Configuration is done via HTTP web page.
    • Supports Microsoft Internet Explorer 6.0 and higher.
  • Accepts 10-18 VDC (12 VDC nominal)
  • 10 AWG wires with brass terminals for connection of automotive/marine battery.
GSM / 3G Modem
  • Sends SMS text messages to a cell phone or pager (GSM modem only) when a sensor goes out of range of a configurable threshold.
  • Supports one configurable authorized phone number for sending SMS text messages.
  • ENVIROMUX-MINI-O: features built-in GSM modem
    • Requires mini SIM card supporting SMS messaging (not included)
    • Protocols: AT commands
    • Quad band: 850/900/1800/1900 MHz
  • ENVIROMUX-MINI-O3G: features built-in 3G modem
    • Supports third generation (3G) digital cellular standards.
    • Requires mini SIM card supporting 3G SMS messaging (not included)
    • Protocols: AT commands
    • Quad band EDGE/GPRS/GSM: 850/900/1800/1900 MHz
  • WxDxH (in.): 6.8x4.3x10.8
  • Operating temperature: -4°F to 131°F (-20°C to 55°C).
  • Storage temperature: -20°F to 185°F (-30°C to 85°C)
Regulatory Approvals
  • CE, RoHS
  • Enclosure: IP65, NEMA 3
  • Two years
Outdoor Environment Monitoring System application drawing Inside of the Outdoor Environment Monitoring System box
The Outdoor Environment Monitoring System box opened

Outdoor Temperature Sensor

Pressure Switch Sensor

Outdoor Temperature Sensor
$30 - $40
  • For use with ENVIROMUX-MINI-O.
  • Applications from -4°F to 212°F
    (-20°C to 100°C).
  • High resistance to external influences on the cable due to digital output signal.
  • Accurate to within ±0.9°F (±0.5°C).
  • Re-calibration is not necessary after initial set-up.
  • Available length: 3/7/10/25 feet.
Enviromux Pressure Switch Sensor
  • Diaphragm-actuated, pressure-indicating gauge with built-in electrical switch for tripping alarms and/or shutdown devices.
  • For use with ENVIROMUX-MINI-O.
    • Be notified if an irrigation pump stops working or if irrigation system lines become clogged.
  • Measurement range:
    • ENVIROMUX-PS50: 0 to 50 psi
    • ENVIROMUX-PS150: 0 to 150 psi
  • Maximum pressure:
    • ENVIROMUX-PS50: 100 psi
    • ENVIROMUX-PS150: 300 psi
  • Accuracy: ±1.5 psi
  • Polycarbonate, break-resistant case and lens.
  • Process connection: 1/8-27 NPTM brass
  • Accuracy and protection from moderate overpressure is assured by unitized diaphragm chamber.
  • Built-in pulsation dampener helps eliminate pointer flutter and is removable for cleaning.
  • Operating temperature: -40°F to 150°F
    (-40°C to 66°C)
  • Process temperature: -40°F to 250°F
    (-40°C to 121°C)
  • Screw terminal for connecting sensor to ENVIROMUX-MINI-O.

Outdoor Sensor Cable

Outdoor Sensor Cable
$2 - $63
  • Outdoor 2-wire sensor cable.
  • Color-coded red and black PVC insulation.
  • Sunlight-resistant gray PVC jacket.
  • 22 AWG stranded tinned copper conductors.
  • Operating temperature: -4°F to 221°F
    (-20°C to 105°C).
  • Use to connect the ENVIROMUX-PSxx Pressure Switch Sensor to the ENVIROMUX-MINI-O.
  • Available lengths: 3/6/10/25/50/100 feet.
  • Regulatory approvals: RoHS, UL