Sensor Float 800-60 Control switch for potable water and sewage A mercury activated, narrow angle control switch designed to accurately activate pump control panels and alarms. There is a smaller version for control in confined spaces. Switches currents up to 5A AC. Switch operating range typically ±1cm from horizontal. Pump up, pump down or SPDT versions are available with pipe clamp, internal weight (not SPDT) or cable options. The float is 8.6cm dia x 11.6cm and is manufactured from PVC.