4 Product specification
Item
Specification
Frequency signal transmission
2.400 - 2.4835GHz
Protocol
Bluetooth 4.1
Modulation
GFSK
Transmission interval
2S
Internal battery
CR2450,620mAh/3V
Output power
-4dBm, adjustable
Maximum transmission distance 55 meters
（
-4dbm
）
Storage
can store 12000 pieces data
Battery life
1.5 year (depends on working mode,can replace
battery)
Net weight
25g
Dimension
66mm*48mm*10mm
Temperature operating range
-25℃~ +60℃
Temperature detecting range
-40℃~+80℃(Just for the temperature sensor)
Temperature detecting accuracy ±0.5℃(-20℃~+40℃),±1℃(Other temperature )
5 Caution
1,Being close to a metal object will interfere with the signal, causing the signal to be
weaken;
2,Note that the distance between the TZ-BT05B and the receiver to ensure the
reception accuracy;
3, Away from water and corrosive materials.
6 Switch Instructions
Device status
Operation
LED light instruction
Instructions
Turn on
Under unopened state,
long press button for 3
seconds
Flashes continuous 3s on,
then flashes once every 10
seconds
Data logger starts,
start the real-time
temperature record
