Battery exch. P2 > M4

Upgrade to the new M4 plug-in battery system for sensors from SN ~ 12000.
Please enter the SN of the sensor or aXbo in the note field in the shopping cart (8 digits). If not sure, please open the case (instruction) and check whether there are 2 holes to the left and right of the battery (pink arrows in Fig. 2)    |   Sensor 16g | Product code 42804