Positive Earth version - All Smiths Classic 52mm electrically operated gauges require a stabiliser to regulate the voltage supply and at least one stabiliser is required per three gauges.

Negative Earth version - All Smiths Classic 52mm electrically operated gauges require a stabiliser to regulate the voltage supply and at least one stabiliser is required per three gauges.

Temperature gauge adaptor to take types of capillary gauge (Caerbont, other UK, USA, Japan) for fitting into a water hose system. Water hose adapters are machined from billet. Hose connections are push on (32 and 35mm push on available by special order)

With 1/4" NPTF male thread to screw into the oil gallery and the same female thread to take the original transmitter and a female 1/8" NPTF tapping to allow a pressure switch or a 1/8" BSP female pressure gauge line to be attached via adapter OGTPA

Low pressure switch that 'makes' when pressure falls below a chosen point. Adjustable within a range of 1.45-14.5psi. With a 1/8NPTF thread to screw into a matching thread on a T piece or tapping in a filter head.

Low pressure switch that 'makes' when pressure falls below a chosen point. Adjustable within a range of 15 to 120psi - set to 20psi. With a 1/8NPTF thread to screw into a matching thread on a T piece or tapping in a filter head.

Low pressure switch that 'makes' when pressure falls below a chosen point. Adjustable within a range of 15 to 120psi - set to 35psi. With a 1/8NPTF thread to screw into a matching thread on a T piece or tapping in a filter head.

With 1/8" NPTF male thread to screw into the oil gallery and the same female thread to take the original transmitter and a female 1/8" NPTF tapping to allow a pressure switch or a 1/8" BSP female pressure gauge line to be attached via adapter OGTPA

With 1/8" BSPTmale thread to screw into the oil gallery and the same female thread to take the original transmitter and a female 1/8" NPTF tapping to allow a pressure switch or a 1/8" BSP female pressure gauge line to be attached via adapter OGTPA

With 1/2" UNF male thread to screw into the oil gallery and the same female thread to take the original transmitter and a female 1/8" NPTF tapping to allow a pressure switch or a 1/8" BSP female pressure gauge line to be attached via adapter OGTPA

With 1/4" BSP male thread to screw into the oil gallery and the same female thread to take the original transmitter and a female 1/8" NPTF tapping to allow a pressure switch or a 1/8" BSP female pressure gauge line to be attached via adapter OGTPA

With 3/8" BSF male thread to screw into the oil gallery and the same female thread to take the original transmitter and a female 1/8" NPTF tapping to allow a pressure switch or a 1/8" BSP female pressure gauge line to be attached via adapter OGTPA

Male/male adaptor - 1/8" BSP to 1/8" NPTF

Temperature gauge adaptor to take types of capillary gauge (MOCAL, Racetech, Smiths competition) for fitting into a water hose system. Water hose adapters are machined from billet. Hose connections are push on (32 and 35mm push on available by special order)

Small brass tap for liquids, gases and vapours. 3/8 inch BSP threaded connection. Rubber handle cover. Maximum working pressure 25bar, maximum working temperature 50 deg C

Small brass tap for liquids, gases and vapours. 1/4 inch BSP female connection. Rubber handle cover. Maximum working pressure 25bar, maximum working temperature 50 deg C

Brass Y fitting, used when fitting oil pressure gauge with an oil pressure switch, two 1/8" BSP female threads and one 1/8" BSP male thread, all parallel.