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 (detects presence of vehicles up to 8 feet away). 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. *
View Example Sensor Data in iMonnit

Profile 2 – Detects vehicles in motion passing by. *
View Example Sensor Data in iMonnit

Profile 3 – Works along side of Profile 2 to report the speed of vehicles in motion as they pass by (to detect vehicle speed, you will need both a profile 2 sensor and a profile 3 sensor). If a Monnit ID sensor is mounted on the vehicle, the system is capable of reporting the speed as well as the identity of the vehicle. *
View Example Sensor Data in iMonnit

* For all profiles, data is transmitted at time of detection regardless of sensor heartbeat settings.

Monnit WIT Wireless Sensor Specifications

Detects presence of vehicles up to 8 feet away
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		%

Max Operating Temperature	-7°C to +60°C (+20°F to +140°F)

Optimal Battery Operating Temperature (Coin Cell)	+10°C to +50°C (+50°F to +122°F)

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.

** Battery life is determined by sensor reporting
frequency and other variables.

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Wireless Vehicle Presence Sensor