Wireless Data Logger (low power consumption design)

Factory-configured models accept vibrating wire, differential reluctance (Carlson), 4-20 mA current loops, and thermistors directly through onboard signal conditioning. For less common sensors like MEMS tilt rods or digital inclinometers, a small interface module can be included, but the main board’s design keeps those paths shut down when not actively sampled to preserve low power consumption.

The logger can be set to acquire readings as often as once per second or as infrequently as once daily. Between acquisitions, the microprocessor and radio enter deep sleep, drawing microamps. This means even at the fastest rate, battery life is governed by the active measurement window—typical drain per sample is measured in millijoules, so configurable warm-up times for sensors help avoid wasting energy on fully powered but idle circuitry.

Onboard flash storage retains up to 120,000 readings (expandable), so no points are lost. When the link is restored, the logger backfills automatically. The memory management is designed to limit write cycles to reduce power spikes, using a rolling buffer that only erases the oldest block once it’s full, rather than constant rewriting.

Yes. The low power consumption design makes it feasible to pair with a small 5 W or 10 W panel and an MPPT charge controller that keeps a LiFePO4 pack topped off. In many installations, that setup lets the system run indefinitely without mains AC. Kingmach provides power budget calculators to match the panel and battery sizing to your location’s sun hours and sensor load.

Standard IP67 rating keeps out dust and temporary immersion. For sites prone to flooding or coastal salt spray, we offer IP68 sealed cases with Gore vents and desiccant packs. All external connectors are circular bayonet or M12 with O-ring seals. The rating applies with cables connected, and field tests at installations in Southeast Asian monsoon regions have shown no ingress over multiple wet seasons.