1. tracking by website 

our professional tracking platform: www.gpswill.com

2.tracking via app and via sms

--12 months product warranty with a very strict  rechecking before shipping every device: 

1)r&d testing:upgrade testing, signal testing, functional testing, performance testing, installation  

testing and safety testing;

2)production testing:the first testing phases, aging test phases, and secondary testing phases.

internal battery, flash chip,voltage regulator ic, switching on/off power supply, mcu, gps / gsm 

modules,  basic settings, as well as the appearanceof tracker will be tested during production testing period.

--a professional engineers team and sales team offer you a prompt,patient and efficient after services, help you solve 

your problems asap.

 fast delivery

goods can be sent out within 1 working days after payment received and usually, it will takes 3~5 days for

dhl to deliver the goods.

q: will thetk-16 work with any sim card?

a:yes. with all gsm network. please note the tk-16 use the micro sim card.

q:which function does the tk-16’s sim need ?

a:please make sure the sim havecaller id and gprs function ,please close the voice mail function.

q: how many gprs data does tk-16 need monthly ?

a:less 30mb/month, our test results showed 20mb is enough.

q:how long does the tk-16 last between charges?

a:close gps tracking function, only keep communication ,it will stand-by 12days.

   turn on the gps tracking function, and every 10 min update location , it will work about 50 hours.

   turn on the gps tracking function ,and verey 1 min update location, it will work about 6 hours.

   talk time is about 4 hours.

    please choose the corresponding work mode and position reporting fre

q: is the tk-16 waterproof?

a:water resistant, yes. waterproof, no.

q: why is the tk-16’s radiation so low?

a:for child health, tk16 reduced a little gsm antennasignal, thesignalis proportional to the radiation, the greater the power the higher radiation. the signal of cell phone is 33 db, but tk16 is 27db,every 3 db,the radiation will be double

so when the mobile phone with very poor signal, the tk16 may be no signal.

q:how about the tk16’sgps positioning accuracy?

a:gps positioning accuracyis10-15mwith open sky ,clear and cloudless. within general situation the gps positioning accuracy is about 30m.