Serundo Auto Digital Thermometer Hygrometer Black 4 Pack

Serundo Auto 4-pack thermometer hygrometer

This set includes four black digital thermometer hygrometers for indoor and outdoor monitoring. Each unit displays temperature in Celsius or Fahrenheit and humidity as a percentage. They suit home, office, garage, greenhouse, reptile terrarium, aquarium and other environments where simultaneous temperature and humidity readings are required.

Thermals noise and power draw

Each meter operates from a single LR44 button cell with a second cell supplied as backup. The sensors update readings every ten seconds across a working range of 0 to 70 degrees Celsius (32 to 158 degrees Fahrenheit) and 10 to 99 percent relative humidity. Temperature accuracy is ±1 degree and humidity accuracy is ±3 percent RH with no audible noise or external power needed.

Build fit and requirements

The compact devices require no wiring, mounting hardware or configuration; place them on any flat surface or attach with adhesive if desired. Two batteries per unit are included so the pack is ready to deploy immediately. They free up wall outlets and eliminate the need for a central display or data logger in simple monitoring tasks.