For target spot and bottom samples of mineral oil products. Made of nickel-plated brass.Heavy, robust design (4.1 kg). Without lowering and pull cables. Target spot sample: 1. Immersion cylinder is lowered in the tank to be sampled by the manually operated reel. 2. The separate pull cable is used to open the valve when the target spot is reached and the sample then enters the immersion cylinder. Bottom sample: 1. Lower the immersion cylinder to the bottom. 2. The weight of the immersion cylinder opens the valve automatically when the bottom is reached and the sample then enters the immersion cylinder.