diff --git a/mpl/sw-trend1.py b/mpl/sw-trend1.py
index f1f0d52..1885e44 100644
--- a/mpl/sw-trend1.py
+++ b/mpl/sw-trend1.py
@@ -114,11 +114,16 @@ def num2sod(x):
     frac, integ = math.modf(x)
     return frac * 86400 
 
-class Lohi:
-    """Time series online low and high detector."""
-    def __init__(self, bias):
+class TimedLohi:
+    """Time series online low and high detector.
+    
+    Confirms low/high candidates after timeout.
+    Time dependent.
+    """
+    def __init__(self, bias, timeout = ONE_MINUTE):
         assert(bias > 0) 
         self.bias = bias
+        self.timeout = timeout
         self.low0 = None
         self.high0 = None
         self.prev_lohi = NONE
@@ -162,7 +167,7 @@ class Lohi:
                     self.lows.append(self.low0)
                     self.lohis.append(self.low0)
                     self.prev_lohi = LOW
-        if self.high0[1] < cdt - ONE_MINUTE and \
+        if self.high0[1] < cdt - self.timeout and \
             ((self.prev_lohi == LOW and \
               self.high0[2] > self.lows[-1][2] + self.bias) or
              (self.prev_lohi == HIGH and \
@@ -172,7 +177,7 @@ class Lohi:
             self.highs.append(self.high0)
             self.lohis.append(self.high0)
             self.prev_lohi = HIGH
-        if self.low0[1] < cdt - ONE_MINUTE and \
+        if self.low0[1] < cdt - self.timeout and \
             ((self.prev_lohi == LOW and \
               self.low0[2] < self.lows[-1][2]) or 
              (self.prev_lohi == HIGH and \
@@ -403,7 +408,7 @@ class Main:
         self.ss = [ 0 ] * len(self.xs)
         self.gs = [ 0 ] * len(self.xs)
         
-        self.mmh = Lohi(5)
+        self.mmh = TimedLohi(5)
         self.osw = SlidingWindow(5)
     
         self.w0 = 0