ALTA Wireless Dry Contact Sensor (AA)

Monnit's ALTA wireless dry contact sensors can be used to detect contact between two wired contact points. This sensor can be used with an external mechanical switch or a contact plate to alert the user via SMS text and/or email when the contacts touch or a switch is triggered.

 ALTA Wireless Dry Contact Sensor (AA) - ALTA WIRELESS DRY CONTACT SENSOR,900 MHz,12 inch probe - AA BATTERY POWERED
Part No. Description Price Stock
MNS2-4-W2-DC-CF-L01 ALTA WIRELESS DRY CONTACT SENSOR,433 MHz,12 inch probe - AA BATTERY POWERED $115 ∗
MNS2-4-W2-DC-CF-L03 ALTA WIRELESS DRY CONTACT SENSOR,433 MHz,3 foot probe - AA BATTERY POWERED $126 ∗
MNS2-8-W2-DC-CF-L01 ALTA WIRELESS DRY CONTACT SENSOR,868 MHz,12 inch probe - AA BATTERY POWERED $105 ∗
MNS2-8-W2-DC-CF-L03 ALTA WIRELESS DRY CONTACT SENSOR,868 MHz,3 foot probe - AA BATTERY POWERED $115 ∗
MNS2-9-W2-DC-CF-L01 ALTA WIRELESS DRY CONTACT SENSOR,900 MHz,12 inch probe - AA BATTERY POWERED $105 ∗
MNS2-9-W2-DC-CF-L03 ALTA WIRELESS DRY CONTACT SENSOR,900 MHz,3 foot probe - AA BATTERY POWERED $115 ∗
MNS2-91-W2-DC-CF-L01 ALTA WIRELESS DRY CONTACT SENSOR,920 MHz Korea,12 inch probe - AA BATTERY POWERED $105 ∗
∗ Standard lead time is 1 week

ALTA - Leading Enterprise Grade "Internet of Things" Solutions

ALTA sensors offer 3 to 4 times the range of standard sensor platforms, extending non-line-of-sight reach to an exceptional 1,200+ feet through walls (12-14 walls typical). Using Frequency-hopping Spread Spectrum (FHSS) also allows ALTA sensors to have better interference immunity from other wireless devices.

Superior power management provides ALTA sensors with almost twice the battery life of Monnit's standard wireless sensors.

  • Coin cell sensors typically last 3+ years.
  • AA and Industrial sensors typically last up to 12+ years.
ALTA products employ Monnit's new Encrypt-RF® Security (256-bit Diffie Hellman key exchange and AES-128 CBC encryption for all sensor data messages), so security is maintained at all communication points from sensor to gateway, gateway to software, then back again.

Integrated on-board data storage allows ALTA sensors to store data messages if communication to a wireless gateway is disrupted (power outage, Internet outage, or out of range). Messages that can't be delivered will be time-stamped and stored in memory (up to the last 512 messages) until communication with the gateway is restored, at which point the messages will all be transmitted.

Over-the-air updates allow ALTA products to be updated remotely if new fixes or features become available.

Packing List

  • Wireless Sensor
  • Mounting Hardware
  • 2 x AA Batteries

Features

  • 900/868/433 MHz Operating Frequency
  • Lead Wire Length: 1 ft. ( 12 in.)
  • Detection Wires: High Impedance
  • Weight: 3.7 oz.
  • Security: Encrypt-RF® (256-bit key exchange and AES-128 CTR)
  • Battery Type: 2 Replaceable AA 1.5 V Batteries
  • Dimension: 4.375 in x 2.470 in x 1.12 in
  • Supply Voltage: 2.0 - 3.8 V (2 x AA 1.5V Batteries or Optional Power Supply)
  • Battery Life: At 1 hour heartbeat setting, included AA batteries will typically last 6-8 Years. **
  • Max Operating Temperature Using AA Alkaline: -18°C to 55°C (0°F to 130°F)
  • Max Operating Temperature Using AA Lithium: -40°C to 60°C (-40°F to 140°F)
  • Optimal Battery Operating Temperature: +10°C to +50°C (+50°F to +122°F)
  • Enclosure Material: ABS
  • Senses immediate contact between wires.
  • Can also sense when contact is broken.
  • Variety of lead lengths available.

* Actual range may vary depending on environment.
** Battery life is determined by sensor reporting frequency and other variables.