Yu Ding wireless industrial remote control F21-6D

Housing: Glass fiber reinforced nylon; Protection: IP65; Battery: 2 1.5V AA alkaline batteries; button: six pairs of speed, a start, an emergency stop; key elements: an arrow; the security key: there; security code : 4000000000 kinds over; voltage detection: insufficient voltage 2.2V Operation Slow red flashing prompt; insufficient voltage 1.8V transmitter can not start; transmitting frequency: 310.0325-331.165MHz; channel spacing: 0.2675MHz; Number of Channels: 80CH; Transmitting power: less than 10DBm; fault detection: red flash: 1, or a magnetic key switch or switch failure is not installed; 2, failure to turn the right way; 3, a key stuck; Flashing red slowly: low battery Please replace the battery