---

• + What kind of fire alarm host should we choose for linear smoke alarm 613PC ?
• + Is Heiman smart repeater with night light HS2RNL working with ZIGBEE2MQTT?I see the Repeater with nightlight is assigned a Tuya Zigbee ID and missing image?
• + Can we change the H1(temperature&humidity sensor) temperature unit from Celsius to Fahrenheit by OTA?
• + Why the zigbee interconnected smoke alarm keep sending alarm after the 10 mins mute time?
• + How Heiman device realize connecting network and sending call/SMS?
• + About fall Detector，could you send us an example of how those values must be sent?
• + Can i control the display off in the night of the WS3AQ?
• + we are trying to convert Celsius to Fahrenheit, How can we resolve this?
• + How do we make production test if we develop WIFI module using Heiman WIFI smoke alarm main board?
• + How can i use Heiman interconnect group device to cover big area?
• + Is Heiman zigbee device support HA platform?
• + How can i set smart linkage between air quality detector and air purifier?
• + What’s the difference between 612PC-2/-4 and 612DC?
• + Why the interconnect device showed on the APP but has no respond?
• + Will one interconnected group influence the other group nearby?
• + How to operate to add a interconnect type device into one group?
• + Why my gas detector keeps warming-up state and LED keeps flash after power on?
• + What’s the difference between -EFA -EFR -TY behind the model?
• + Do i need API to integrate Heiman gateway with our system or third party control system?
• + Can i use Heiman gas detector WS2CG sample to control solenoid valve?