Extra TireMinder Transmitter for TireMinder A1A, TM66 and TMG400C TPMS;TPMS for Car, Light Truck, SUV or Any Other Vehicle with Aluminum Valve Stems;Replaceable Battery with 9-14 Month Lifespan (CR1632);Simply Replaces Valve Cap; Small, Light, and Out of the Way (0.4 OZ)

• 2-Pack Aluminum Transmitters for TireMinder TPMS (TMG400C, TM66 and A1A)

2-Pack Aluminum Transmitters for TireMinder TPMS (TMG400C, TM66 and A1A)Minder Research