Extra TireMinder Transmitter for TireMinder A1A, TM66 and TMG400C TPMS
TPMS for RV, Trailer, MotorHome, Truck, Car or Any Other Vehicle with Brass (Rubber) or Steel Valve Stems
Replaceable Battery with 9-14 Month Lifespan (CR1632)
Simply Replaces Valve Cap; Small, Light, and Out of the Way (0.5 OZ)