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HT618 is a micro digital hygrometer with high precision temperature and humidity sensing module technology.
It can sample LCD, process data and display results.
It uses calibrated sensor modules to reduce bias and improve accuracy.
It is lightweight, compact, ergonomic and user-friendly, making it an ideal tool for monitoring indoor farming, animal husbandry, warehouse storage, utilities, and many other areas.
Material: ABS + electronic components
Technical index Range Resolution accuracy
Humidity 0-100% RH 0.10% ± 3.0%
Temperature - 20-60°C 0.1 ° C ± 0.5 ° C(4~140℉ 0.1℉ ±2.0℉)
Sampling rate ＜ 0.5s
Overload indication ol
Max / min / max / min
Unit conversion ℃ /℉
Automatic shutdown for 5 minutes.
Battery power low indication 3.0-3.5v
Battery 3 x 1.5V AAA (LR03) battery (not included)
Current consumption in work ≤ 25mA
Power off ≤ 10uA
Working environment temperature: 0-40 ℃
Humidity: ≤ 80% RH
Storage environment temperature: below 20-60 ℃
Humidity: ≤ 75% RH
On / off (Bluetooth) short press: on / off
Long press: switch to Bluetooth when on
Press max / min briefly to switch between Max / min / quit
Short press to switch between
Hold / BL short press to start data hold mode, long press to turn backlight on / off
1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
2. Please allow 1-3cm measuring deviation due to manual measurement.