diff --git a/main.go b/main.go
index 914b0d6..967e09e 100644
--- a/main.go
+++ b/main.go
@@ -561,24 +561,31 @@ func WriteDatapoint(mytime int64, deveui string, devaddr string, v uint8, h uint
 			}
 
 			// minmax Alert
+			fmt.Println("debug minmax alert")
 			minmax := getDevMinmax(deveui)
+			fmt.Printf("debug getDevMinmax: minmax = %s\n", minmax)
 			if minmax != "0,0" {
 				tokens := strings.Split(minmax, ",")
 				if len(tokens) == 2 {
 					min, _ := strconv.ParseInt(tokens[0], 10, 32)
 					max, _ := strconv.ParseInt(tokens[1], 10, 32)
+					fmt.Printf("debug min: %d, max: %d\n", min, max)
 					minmaxstatus := GetMinMaxStatus(deveui)
+					fmt.Printf("debug minmaxstatus: %s\n", minmaxstatus)
 					if (w_gram < uint32(min)) && (minmaxstatus != "MINALERT") {
+						fmt.Printf("debug minalert\n")
 						SetMinMaxStatus(deveui, "MINALERT")
 						alertLogMap[deveui] = fmt.Sprintf("alert,deveui=%s reason=\"minmaxlarm\",w=%di,w_min=%di %d\n", deveui, w_gram, min, mytime*60*1000*1000*1000)
 						location, _ := time.LoadLocation("Europe/Zurich")
 						alertMap[deveui] = fmt.Sprintf("*** Min/Max-Alarm ***\n%s\n%s\nUnterschreiten des Minimalgewichts: %d g (Minimal: %d g)", getDevAlias(deveui), time.Unix(mytime*60, 0).In(location).Format("02.01.2006 15:04"), w_gram, min)
 					} else if (w_gram > uint32(max)) && (minmaxstatus != "MAXALERT") {
+						fmt.Printf("debug maxalert\n")
 						SetMinMaxStatus(deveui, "MAXALERT")
 						alertLogMap[deveui] = fmt.Sprintf("alert,deveui=%s reason=\"minmaxlarm\",w=%di,w_max=%di %d\n", deveui, w_gram, max, mytime*60*1000*1000*1000)
 						location, _ := time.LoadLocation("Europe/Zurich")
 						alertMap[deveui] = fmt.Sprintf("*** Min/Max-Alarm ***\n%s\n%s\nUeberschreiten des Maximalgewichts: %d g (Maximal: %d g)", getDevAlias(deveui), time.Unix(mytime*60, 0).In(location).Format("02.01.2006 15:04"), w_gram, max)
 					} else if (w_gram > uint32(min+100)) && (w_gram < uint32(max-100)) {
+						fmt.Printf("debug resettonormal\n")
 						SetMinMaxStatus(deveui, "NORMAL")
 					}
 				}