UNI-T UT123 - General Specifications; Operating Conditions; Standard Accessories; Maintenance

Note:
To ensure measurement accuracy, operating temperature should be within 18C-28ºC and the fluctuation range
should be within ±1 •c.
Temperature <18°C or >28ºC: Add temperature coefficient error 0.1 x (specified accuracy)/ºC.
6. Maintenance
Warning: Before opening the rear cover of the meter, switch off the power supply (remove the test leads from the