Grain dryer GSM alarm 1 also works with old grain dryer.
These dryers there is no automation, and no extra alarm relay
Do not worry, placed in a 230V alarm lamps over Detectors, which is due to the signals GSM alarm device.
Likewise, you can put a temperature sensor drying air outlet of fellings and get häytyksen if you need.
The device has a metal housing and sealed. It can be considered a very dusty conditions. It has a separate GSM antenna.
Dimensions: 230 * 100 * 50mm. Weight 1.4 kg
You can put eight alarm receiver, you can change causes häytysten, you can get GSM / SMS message when the dryer in the bulb lights up.
You can calibrate the temperature sensor and set the minimum and maxi thermal status alarms
Three alarmlamp connection(2m) and one temperarure sensors (2m)