TK004 is one mini GPS Tracker product for different kinds of vehicles. It supports SOS, RELAY,MIC and many alarm functions. And input voltage is DC9V TO DC90V. It is one 2G GSM Network and GPS Position device.

Functions:
1,GPS/GPRS/LBS/AGPS accurate tracking
2,Real time tracking
3,Geo-fence setting
4,Historical route playback in365 days
5,ACC detection and ACC on alarm
6,Remote fuel/power cut off
7,Power off alarm
8,Vibrate/shift alarm
9,Bind area supplement
10,Built in G-sensor anti-static drift
11,Bend compensation
12,Power saving mode

Specifications:

GSM: 850/900/1800/1900 Quad band
GPRS: Class12, TCP/IP
Working Voltage: DC9V- 100V
Working current: 22mA(DC12V)
Working current: 12mA (DC24V)
GPS Locating time: Cold start is about 38seconds (Open sky)
                Warm start is about 32seconds
                Hot start is about 2seconds (Open sky)
GPS Precision: 10m (2D RM)
Working temperature: -20 degrees to +70 degrees
Working humidity: 20% to 80%RH
Size: 79*29*15mm

GSM Module: MT6261
GPS Module: Ublox
Power IC: SL3036H
G-sensor: BS250E
Protocol: GT06

LED Indicator:
1. Red LED is the power signal
   It is always on when the external DC is connected.
2. Blue LED is the GSM signal indicator
  It is always on when there is no GSM
  It flashes when GSM is normal
  It flashes quickly when transmitting data
3. Yellow LED is the GPS Signal indicator
  It is always on when there is no positioning
  It flashes after positioning.