Built-in memory, real-time recording of temperature and humidity data, up to 65,535 groups can be recorded;
It has 2 channels of switch signal output, which can be associated with alarm events.
Set various alarm parameters, communication parameters, time and date, etc. through the LCD button;
Built-in temperature and humidity alarm function, which can set the upper and lower limits of the temperature and humidity alarm and the hysteresis setting; 10~30V wide power supply voltage input, RS485 signal output, multiple recording modes, the longest communication distance can reach 2000 meters.
Model No: ESG12912
https://nbeasyget.en.made-in-china.com/product/xKhQNtRummfg/China-Digital-Indoor-Outdoor-in-out-Tabletop-and-Wall-Hanging-Design-Monitor-Sensor-LCD-Temperature-Thermometer-Humidity-Meter-with-USB-Cable-Esg12913.html
1) Measures Temperature range: -40 to 140 °F
2) Measures humidity range: 10%RH - 99%RH
3) Temperature accuracy: +/-1.0 C
4) Humidity accuracy: +/- 4.5%, @ 20%-80% ; +/- 8%, @ 10%-19% and 81%-99%
5) Quartz time accuracy: +/- 1.0s per day
6) Power consumption: Rechargeable
7) DC5V battery powered
8) Installation: Wall mount
9) Size: 11.3 x 12 x 3.3 cm
10) Weight: 400g