The Stabila REC150 Receiver for Rotary Lasers features two displays: one each on the front and on the back for fast measuring and taking readings in any position. The receiver has an acoustic signal with volume control and an LCD display with symbols. The REC150 allows exact marking of a reference height. The REC150 has adjustable sensitivity for different applications: high sensitivity setting of ±1.0mm or a rough sensitivity of ±3.0mm. It has high class of protection to IP67, both water and dust proof; not merely resistant. The receiver is supplied with a bracket to fix onto a levelling rod.