A printing device includes a platen roller, a guide, and an adhesion reduction portion. The platen roller is positioned to contact with a liner-less label. The guide is positioned adjacent to the platen roller and the conveying passage of the liner-less label and downstream of the printing position in a conveying direction of the liner-less label. The guide is configured to guide the liner-less label. The guide has a first area and a second area. The first area is closer to the conveying passage than the second area is to the conveying passage. The second area is closer to the platen roller than the first area is to the platen roller. The adhesion reduction portion is provided at the first area and the second area. The adhesion reduction portion is configured to reduce adhesion of gluing agent to the first area and the second area.

Disclosed herein is a moisture meter comprising a housing, a moisture sensor, a processor configured to receive moisture readings from the moisture sensor, a display for displaying moisture data to a user, a printer integrated into the housing, and a power source for powering the moisture meter and printer.

Disclosed herein is a moisture meter comprising a housing, a moisture sensor, a processor configured to receive moisture readings from the moisture sensor, a display for displaying moisture data to a user, a printer integrated into the housing, and a power source for powering the moisture meter and printer.

A multi-sensor is disclosed which comprises a power supply, a surface mounting mechanism to engage with a mounting surface, a plurality of sensors with at least one being of a different sensor type than the others, each sensor to generate a raw sensor data feed responsive to sensing its environment, a sensor controller to control one or more of the sensors, one or more processors or processing circuitry to: receive a plurality of raw sensor data feeds from the plurality of sensors and process each feed to: generate sensor-specific meta-data for each feed, generate sensor-agnostic meta-data for all feeds, and generate a fused sensor data feed by at least time-fusing the sensor-agnostic meta-data and the sensor-specific meta-data with the raw sensor data feed, and a data communications component to output fused sensor feeds and receive sensor control data to control at least one of the plurality of sensors.

A multi-sensor is disclosed which comprises a power supply, a surface mounting mechanism to engage with a mounting surface, a plurality of sensors with at least one being of a different sensor type than the others, each sensor to generate a raw sensor data feed responsive to sensing its environment, a sensor controller to control one or more of the sensors, one or more processors or processing circuitry to: receive a plurality of raw sensor data feeds from the plurality of sensors and process each feed to: generate sensor-specific meta-data for each feed, generate sensor-agnostic meta-data for all feeds, and generate a fused sensor data feed by at least time-fusing the sensor-agnostic meta-data and the sensor-specific meta-data with the raw sensor data feed, and a data communications component to output fused sensor feeds and receive sensor control data to control at least one of the plurality of sensors.