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Dry Contact

Our 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.

WARNING: Use caution when interfacing to Monnit and ALTA Dry Contact Sensors. Any external AC or DC Voltages WILL DAMAGE the electronics of the wireless sensor. We are not responsible for troubleshooting, replacing or reimbursing damages incurred by disregarding this warning.

Features

  • Senses immediate contact between wires.
  • Can also sense when contact is broken.
  • Variety of lead lengths available.

Data Snapshot

Dry contact sensor data view in software
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
Operating Frequency 900 MHz Operating Frequency
Certifications Complies with Part 15 of the FCC Rules. (FCC ID: ZTL-G2SC1)
Complies with Industry Canada standards. (IC: 9794A-G2SC1)
Device Range Device Range Up to 1,200 ft. non-line-of-sight, wireless device range*
Security Encrypt-RF® (Diffie-Hellman Key Exchange + AES-128 CBC)
  • Tamper Switches
  • Barn door access monitoring
  • Freezer / cooler door access
  • Freezer / cooler doors (to determine if they are not closed all the way)
  • Convenience store cooler doors (to determine if they are not closed all the way)
  • Forklift seat switches

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