Product category
Hazard monitors, alignment, speed, temperature, level and vibration sensors that protect bucket elevators and conveyors.
Speed Switches & EncodersThe 4B heavy duty stainless steel Rotech rotary shaft encoder is used primarily for protecting equipment and personnel from dangerous underspeed/belt slip conditions in extreme environments. Other applications include accurate speed control,…
Speed Switches AccessoriesThe SpeedMaster™ with Pulse Pilot is the only device that accurately tests the calibration of a speed switch, and allows testing of the 10% alarm and 20% shutdown features of the sensor…
Level IndicatorsThe RLI “SHAKER” rotary paddle switch is used to detect high and low levels of bulk granular solids in bins, tanks and silos. It can also be used to detect plug conditions…
Hazard Monitor AccessoriesThis product is obsolete. Please contact 4B for support / spares.The R500 is a microprocessor-controlled unit, which accepts signals from the T500 Elite Hotbus™ monitor, and is able to cause alarm or…
Speed Switches AccessoriesThe Speed Relay is used to monitor the speed of a rotating shaft and detect if it rises or falls below a preset safety level. The DIN rail mounted speed relay can…
Speed Switches & EncodersThe 4B heavy duty aluminium Rotech rotary shaft encoder is used primarily for protecting equipment and personnel from dangerous underspeed/belt slip conditions in extreme environments. Other applications include accurate speed control, direction…
Hazard Monitor AccessoriesThis version of the F500 Elite Fieldbus gateway has been designed to work as a Watchdog Elite communications gateway and allows up to 10 Watchdog control units to be networked together through…
Bearing Temperature SensorsThe ADB series have been designed to allow the depth of the sensor to be adjustable depending on your application. A number of versions are available with probe lengths of 50, 100,…
Speed Switches & EncodersThe Whirligig® is a fully guarded target for easy mounting of motion sensors. It is a universal shaft sensor mount suitable for all industry standard cylindrical or DIN style inductive sensors including…
Hazard MonitorsThe Watchdog Super Elite (WDC4) is easy to install and simple to set-up. The system processes signals from sensors for belt misalignment, belt speed & slip, continuous bearing temperature, pulley misalignment and…
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