Prokit's Industries MT-4011 - Manual (Page 6)

***Caution
1. When the battery voltage is under proper operation
requirement,” +” “-“symbol will show on the LCD and the
battery needs to be replaced with new.
2. Input protection: The temperature jack carried
a maximum voltage of 24 VDC or VAC.
3. Temperature jacks: Design for the insertion of standard small
thermocouple jacks, which has a center spacing of 7.9mm
between the two prongs.
4. Temperature coefficient: 0.01% rd+0.03℃ (0.01% rd +
0.06℉) outside the specified +18℃ to 28℃ 64℉ ~82℉)
range.
5. How to take out the battery cover?
* Take a screw off
* Remove battery cover.
* Remove old battery then put in new
battery
* Put the cover back and screw it.
6