• 1.Why does this product come with AAA alkaline batteries, not NiMH or NiCd rechargeable batteries?

All the products in 2024 use 500MAH Ni-MH rechargeable batteries, which can stand by for more than 2 years after being fully charged.

In the past, when our relevant certificates were not fully processed, we used general-purpose AAA non-rechargeable batteries, We got a lot of complaints,which have now been fully updated.

• 2.Why did the customer respond that the product could not be charged?

Nickel-metal hydride rechargeable batteries belong to the older generation of rechargeable batteries by lithium batteries, its charging speed is very slow, only about one-tenth of lithium batteries, usually full battery takes a whole day, because of very slow so many customers feel that it can not be charged at all.In fact, this product uses a very low-power CPU and sensor, and a battery can be standby for more than two years, almost without considering the power problem, unless it is used frequently.

• 3.How accurate is the measurement of this product？

This product uses a high-precision sensor, which is one decimal place more than similar products, which means that the accuracy is improved by 10 times. This product uses very complex mathematical algorithms and temperature compensation calibration, which can remain accurate at minus 40 degrees Celsius and 120 degrees Celsius. We promise that this product is accurate enough.