Engine Coolant Temperature Sensor (TX61) by Standard®. Terminal Quantity: 2. Connector Shape: Square. Connector Gender: Female. Connector Quantity: 1. Terminal Gender: Male. Terminal Type: Blade. Voltage: 12 V. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for integrity to all channels of distribution while maintaining a profitable return for all stakeholders.