DZDT431 All Bands Cell Phone Detector 2G+3G+4G
+ optional 2.4GHz ISM band detection
It is very easy to operate and highly portable. It has the same detection capability and most of
the features as our DT401 advanced cellphone detector. It has very slick appearance, light weight, and
can fit most of the shirt pockets.
It can catch every sporadic short message transmission up to 50 meters in distance. The detection
frequency bands can be customized to suit user's specific local frequency allocation. The sensitivity
( the detection distance) can be adjusted easily by pressing the two up/down buttons.
So, it only detect cellphone signals and has very high immunity to noise. The advanced software enable
the filtering of most of the in band signals emitted from non-cellphone devices such as a DECT cordless
phone. The chance to have a false alarm is nearly none.
Once a signal is detected, LED indicator will flash accompanying with alarm signal for a short period of time.
There are three alarm modes to be chosen. The beeping tone in open air, the beeping tone in earphone, and
the vibrator. Beeping tone pitch varies
with respect to signal strength.
The reliable built-in lithium battery when fully charged can support the detector for 8 hours continuously. Low battery warning is given
through LED display and beeper. Battery can be charged with an AC adapter (included) or any device that has a USB port. The charge up time
is less than 1.5 hours. The two green dots at the lower part of the display will light up during charging and distinguished when fully charged.
- To set the sensitivity, simply press the up or down button and release at the desired percentage shown on LED display.
- To select vibrator mode, press any of the up or down button prior to pushing up the main switch. It will go back to
beeper mode when device is power up again without pressing any of the buttons.
- This device can be operated free standing on a flat plane or held in hand. The antenna is not designed to be directional.
Frequency bands: (per customer order) *numbers shown below are typical
Band Taiwan US/Canada Europe
700 703-748 MHz 699-716 MHz 703-733 MHz
750 777-787 MHz
800 832-862 MHz
850 825-845 MHz 814-849 MHz
900 880-915 MHz 880-915 MHz
1800 1710-1785 MHz 1710-1785 MHz
1900 1850-1915 MHz
2100 1920-1975 MHz 1710-1755 MHz 1920-1980 MHz
2500 2496-2690 MHz
2600 2500-2570 MHz 2500-2570 MHz
2570-2620 MHz (TDD) 2570-2620 MHz
Sensitivity: > -70 dBm@ Antenna (Adjustable)
Dynamic Range: 35 dB
Range: >30 Meters (Typical city environment)
Detection Mode: Peak Power Detection
Sensitivity adjustment: Up and Down Buttons from 0 to 100%
Alarm Modes: Beeper (Open air), Beeper (Earphone), Vibrator + LED flasher
Power Supply: Internal lithium battery
Charge Time: <2.5 hours
Charge port: USB to micro-USB AB type jack
Operation Time: >8 hours
Attachments: AC to USN adapter, USB to microUSB connector, Earphone
Warrenty: 1 year
DarZong Technology, Co. Ltd.
TEL: +886-3-562-6793 FAX: +886-3-562-6641
No. 20, Lane 19, Bade Road, Hsinchu City, 30069, Taiwan
Detect 2.4 GHz ISM band devices:
For Wi-Fi transmitters (Router, Hot Spot, hand set)
detection, 2.4GHz band detector can be internally
added on or as a stand alone device for simplicity.
This is the only device can catch illegal
transmission of short messages.
DT431 is a super sensitive cellphone detector at budget price.
DT431 can detect up to 8 frequency bands simultaneously.
DT431 is precisely designed to posses accurate rejection to
frequencies out of the allocated cellphone band.