FT0021 Wireless Ultrasonic Tank Liquid Level Meter

Description

Feature: 
1. Monitors tank liquid depth level
2. Tank liquid level displayed on a **-element LCD bar graph
3. Min/max records of tank liquid level
4. Tank liquid level high/low alarm
5. Tank liquid empty alert
6. Indoor temperature (ºF or ºC) 
7. Tank temperature (ºF or ºC)
8. Time alarm
9.  Free Standing or wall hanging 
Specification:
Indoor temperature range :0~*0ºC
Outdoor temperature range:**0~*0ºC
Temperature accuracy:±1ºC
Water level measure rang：0 ~*5m
            Resolution:0.*1m
            Accurate: +/*0.*3M
Transmission frequency:**3MHZ
Transmission range:**0 meters(**0 feet)in open area
Transmission interval: *0s when level changes or 3 minutes when level does not change