wireless data logger temperature humidity

Kingmach designs these wireless data loggers for users who need solid numbers, not just connectivity. Each unit supports one external probe input—thermocouple, RTD, or digital—as well as an onboard sensor for ambient readings, covering typical ranges from -40°C to +85°C and 0–100% RH. Accuracy sits around ±0.3°C for temperature and ±3% RH for humidity under normal conditions, which holds up well in walk-in freezers, drying rooms, or transport containers. Data gets written to non-volatile memory at one-minute to one-hour intervals, with enough storage to hold over 100,000 time-stamped records. When network is available, readings upload via MQTT or HTTP to a server or cloud service you specify; if not, the logger queues data and auto-fills gaps once reconnected. Power normally comes from a replaceable 3.6V lithium battery that runs 18–24 months on hourly logging—field-replaceable without losing config. For longer range, KM-LogTH variants swap WiFi for LoRaWAN, reaching gateways several kilometres away in open sites. The web-based configuration interface and bulk firmware-update tool keep fleet management practical. While we ship standard SKUs from stock, Kingmach’s factory can pre-load custom calibration profiles, sensor coefficients, and reporting intervals for project-specific needs. Global distributors carry spare probes and mounting kits, and our support team helps with protocol mapping and integration during pilot phases.