diff --git a/src/aare/devices/mx_lib.py b/src/aare/devices/mx_lib.py
index 312880d5..6e4a7498 100644
--- a/src/aare/devices/mx_lib.py
+++ b/src/aare/devices/mx_lib.py
@@ -119,7 +119,7 @@ def wait_string_condition(pv: PV, target: Union[str, re.Pattern], *, timeout: fl
         raise TimeoutError(f"timeout waiting for string {pv.pvname} == {target}; actual value == {pv.char_value}")
 
 
-def wait_float_condition(pv: PV, value, *, timeout: float = 60.0,
+def wait_float_condition(pv: PV, value:float, *, timeout: float = 60.0,
                          polling: float = 0.1, tolerance: float| None = None):
     """wait until an epics.PV of type double reaches value
     pv: epics.PV
@@ -143,8 +143,6 @@ def wait_float_condition(pv: PV, value, *, timeout: float = 60.0,
 
     raises: TimeoutError if a timeout occurs
     """
-    if not (isinstance(pv, PV) and "double" not in pv.type):
-        raise AttributeError("argument 'pv' must be an epics.PV of type double")
 
     try:
         value = float(value)