For measuring any lateral movement down in the earth, via inclinometer casing, the Digital MEMS Inclinometer System from RST Instruments Ltd. was the first, and is still the best, Digital MEMS Inclinometer System available

How to change batteries in a new style RST Inclinometer Reel
To change the battery pack in the inclinometer reel, remove the 4 star head screws from the center cover of the inclinometer reel and carefully flip it back...
Tue, 19 Oct, 2021 at 10:03 AM