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Wireless Open/Closed Sensors

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Home > Food & Dairy > Data Acquisition & Logging > Wireless Open/Closed Sensors
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General Description

The ALTA Wireless Open/Closed Sensor can be used to detect when a door or window is opened and closed using a magnetic switch.
• Detects when a door or window is accessed.
• Uses magnetic detection switch.

Principle of Operation

The ALTA Wireless Open/Closed Sensor uses an external magnetic switch to detect the presence or removal of a trigger magnet. When the sensor detects that the magnet is removed or returned it sends the information to the iMonnit Online Sensor Monitoring and Notification System. The data is then stored in the online system and can be reviewed and exported as a data sheet or graph. Notification alerts can be set up through the online system to alert the user when a magnetic source is present or not with the ability to only notify within time of day parameters.

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
*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 Coin Cell Wireless Open/Closed Sensor | Technical Specifications

Supply voltage 2.0–3.8 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 coin cell) -7°C to +60°C (20°F to +140°F)
Optimal battery temperature range (coin cell) +10°C to +50°C (+50°F to +122°F)
Magnetic switch SPST, gold under -plating with Deactivated Rhodium exterior
outer-plating (capable of 50 million activations)
Operation gap Up to 3/4 inch
Wire leads 22 gauge/15 inch length
Magnet Alnico magnet/Weatherproof, high-impact ABS exterior plastic
covering with self-adhesive backing
Magnet temperature range -15°F to 160°F (-25°C to 70°C)
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 0.7 ounces

 

ALTA Commercial AA Wireless Open/Closed Sensor | Technical Specifications

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)
Magnetic Switch SPST, gold under -plating with Deactivated Rhodium exterior
outer-plating (capable of 50 million activations)
Operation Gap Up to 3/4 inch
Wire Leads 22 gauge/15 inch length
Magnet Alnico magnet/Weatherproof, high-impact ABS exterior plastic
covering with self-adhesive backing
Magnet temperature range -15°F to 160°F (-25°C to 70°C)
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

 

ALTA Industrial Wireless Open/Closed Sensor | Technical Specifications

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)
Included battery Max temperature range -40° to +85°C  (-40° to +185°F)
Capacity 1500 mAh
Optional solar feature Solar panel 5VDC/30mA  (53mm x 30mm)
Charging temperature range 0° to 45°C (32° to 113°F)
Max temperature range -20° to 60°C (-4° to 140°F)
Included rechargeable battery 600 mAh/>2000 charge cycles (80% of initial capacity)
Solar efficiency Optimized for high and low-light operation **
Charging efficiency 40%***
Luminous sustainability Minimum of 250 LUX ***
Magnetic Switch SPST, gold under -plating with Deactivated Rhodium outer-plat-
ing (capable of 50 million activations)
Operation Gap Up to 3/4 inch
Wire Leads 22 gauge/15 inch length
Magnet Alnico magnet/Weatherproof, high-impact ABS plastic covering
with self-adhesive backing
Magnet temperature range -15°F to 160°F (-25°C to 70°C)
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 4.7 ounces
Enclosure rating NEMA 1, 2, 4, 4x, 12 and 13 rated, sealed and weather proof
UL rating UL Listed to UL508-4x specifications (File E194432)

Example Applications

  • Doors and windows.
  • Cabinets and lockers.
  • IT server closets.
  • Freezer and cooler doors.
  • And much more.
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