Etekcity via Amazon offers Prime members the Etekcity Auto-Ranging Digital Multimeter in Red, model no. MSR-U1000, for $29.99 with free shipping. (Non-members can spend $49 to qualify for free shipping; otherwise, shipping costs $6.84.) That's $20 off list and the lowest total price we could find. It features a backlit LCD, automatic sleep mode, and data hold function. It measures voltage, current, continuity, frequency, capacitance, and resistance.