9 Technical data
23
Feature
Measuring
range
9
Resolution Accuracy
Frequency with
voltage/current
16
9.999 Hz
99.99 Hz
999.9 Hz
9.999 kHz
0.001 Hz
0.01 Hz
0.1 Hz
1 Hz
± (0.1% + 1 digits)
Temperature with
adapter
17
-20 to 500 °C
0.2 °C
-20 to 0 °C ± 2 °C
0 to 99.99 °C ± 1 °C
100 to 249.99 °C
± 1.5%
>250 °C ± 2%
Figures correspond to +23 °C ± 5 °C at <80% rel. humidity. Temperature
coefficient: 0.15 x specified accuracy per 1 °C (<18 °C and >28 °C)
9.3.
Bluetooth module (testo 770-3 only)
Feature
Values
Bluetooth
Range <20 m (free field)
Bluetooth type
LSD Science & Technology Co., Ltd
L Series BLE module (08 May 2013) based on TI
CC254X chip
Qualified Design ID
B016552
Bluetooth radio class
Class 3
Bluetooth company
10274
testo 770-3 only
The use of the wireless module is subject to the regulations and
stipulations of the respective country of use, and the module may
only be used in each case in countries for which a country
certification has been granted.
The user and every owner undertake to adhere to these
regulations and prerequisites for use, and acknowledge that the
re-sale, export, import, etc. in particular in, to or from countries
without wireless permits, is their responsibility.
16
Frequency measurement is not specified for alternating currents or
voltages below 3% of the smallest respective measuring range
17
Does not include the measurement error of the temperature probe. The
specified accuracy is the sum total of the measurement errors of the
thermocouple adapter and the testo 770
