The ET5678 Coolant Conductivity Tester is a compact, easy-to-use tool designed to quickly assess the electrical conductivity of coolant.

Many EV / hybrid vehicles use a special antifreeze that is not diluted and is manufactured to have very low conductivity. This tester allows users to check conductivity, to ensure that the coolant has not been diluted with water, which is a major safety issue.

• Conductivity & total dissolved solids (TDS) meter - 0 to 9990uS | 0.0 to 19.9ppt.
• Resolution: Electrical conductivity: 1uS(<1999uS); 10uS(>1999uS)/0.01mS. TDS: 0.1PPT. Temp: 0.1 .
• Accuracy: Electrical conductivity: ±2% | TDS: ±2%F.S.Temp: ±0.5
• 2x 1.5V AAA batteries (included)

A professional quality Torx (sec) insert bit. These bits have 6 lobes with a drilled hole to drive both standard / security Torx style screws. Made from premium quality S2 steel.

Part of the Endeavour Tools range of insert bits.

• T7-H Torx security drive
• 1/4" hex
• 25mm overall length
• S2 steel

A professional quality Torx (sec) insert bit. These bits have 6 lobes with a drilled hole to drive both standard / security Torx style screws. Made from premium quality S2 steel.

Part of the Endeavour Tools range of insert bits.

• T8-H Torx security drive
• 1/4" hex
• 25mm overall length
• S2 steel

A professional quality Torx (sec) insert bit. These bits have 6 lobes with a drilled hole to drive both standard / security Torx style screws. Made from premium quality S2 steel.

Part of the Endeavour Tools range of insert bits.

• T9-H Torx security drive
• 1/4" hex
• 25mm overall length
• S2 steel

A professional quality Torx (sec) insert bit. These bits have 6 lobes with a drilled hole to drive both standard / security Torx style screws. Made from premium quality S2 steel.

Part of the Endeavour Tools range of insert bits.

• T10-H Torx security drive
• 1/4" hex
• 25mm overall length
• S2 steel

A professional quality Torx (sec) insert bit. These bits have 6 lobes with a drilled hole to drive both standard / security Torx style screws. Made from premium quality S2 steel.

Part of the Endeavour Tools range of insert bits.

• T15-H Torx security drive
• 1/4" hex
• 25mm overall length
• S2 steel

A professional quality Torx (sec) insert bit. These bits have 6 lobes with a drilled hole to drive both standard / security Torx style screws. Made from premium quality S2 steel.

Part of the Endeavour Tools range of insert bits.

• T20-H Torx security drive
• 1/4" hex
• 25mm overall length
• S2 steel