Ultra-miniature, magnetically-latched solenoid valves in the 120 series weigh just 300 mg and require only a momentary 1-ms pulse to switch the state (5 VDC to open, -5 VDC to close). Suited for compact battery powered pneumatic applications such as lab automation (lab-on-a-chip) and other power-sensitive devices, units are only 0.12 OD × 0.40 long and feature bi-stable performance and quiet operation.