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Monnit WIT™ Wireless Vehicle Presence Sensor   Buy Wireless Accelerometers!

Wireless Vehicle Presence Sensor

The wireless vehicle presence sensors can be used in a host of applications where detecting vehicle presence or motion is needed. This sensor is offered with three unique, user selectable profiles. Please review the profile definitions below to select the one that best meets your need. Should one of the profiles not meet your needs, please contact Monnit with your requirements at devteam@monnit.com and they will be reviewed for supportability.

Monnit's wireless vehicle presence sensor has three profiles available. The profile tells the sensor what to report to the software. Based on your needs, please specify the profile type at the time of order otherwise you will receive Profile 1.

Profile 1 – Detects the presence or absence of a parked or stationary vehicle.

Profile 2 – Detects vehicles in motion passing by.

Profile 3 – Works along side of Profile 2 to report the speed of vehicles in motion as they pass by. If a Monnit WIT ID sensor is mounted on the vehicle, the system is capable of reporting the speed as well as the identity of the vehicle.
Monnit WIT Wireless Sensor Specifications
  • 900, 868 and 433MHz operating frequencies
  • 250 - 300 ft. non-line-of-sight device range*
  • Replaceable 3.0V battery
  • At 1 hour heartbeat setting, coin
    cell battery will last ~ 1-2 Years. **

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

Vehicle Sensor Specifications Min Typ Max Units
Field Range (Full scale (FS) - total applied field) -8   +8 gauss
Mag Dynamic Range ( 3-bit gain control) ±1   ±8 gauss
Resolution (VDD=3.0V, GN=2)   5   milli-gauss
Linearity (±2.0 gauss input range)     0.1 ±% FS
Hysteresis (±2.0 gauss input range)   ±25   ppm
Cross-Axis Sensitivity (Cross field = 0.5 gauss)   ±0.2%   %FS / gauss
Output Rate (Continuous Measurement Mode) 0.75   75 HZ
Output Rate (Single Measurement Mode)     160 Hz
Measurement Period   6   msec
Gain Tolerance   ±5   %
Operating Temperature (Ambient) -30   +85 °C
Gain Tolerance (Ambient, unbiased) -40   +125 °C

Need Longer Battery Life?
Monnit WIT2 Sensors provide the same features and benefits of our standard sensors but with the added value of AA batteries. The AA battery option is more robust at a wider temperature range and provides extremely long life for quicker heartbeats.
  • 2 replaceable AA 1.5V batteries.
  • At 1 hour heartbeat setting, included AA batteries will last more than 4 Years. **
  • Robust sensor housing.
WIT2 Sensor Specifications

** Battery life is determined by sensor reporting
    frequency and other variables.
WIT2 Wireless Vehicle Presence Sensor