The following table describes compatibility between transmitters and receivers.

The Polar Non-Coded T31 transmitters are mainly used with entry level products and products made before 1995. The Polar Coded Transmitters (T61, T31 coded and Polar T31 Coded WearLink Transmitter) are used with the more advanced receivers. The compatibility of each transmitter is shown in the table below:

	Polar T31	Polar T31C	Polar WearLink 31C	Polar T61	Polar WearLink W.I.N.D
Polar A1 *	x	x	x	x	-
Polar A3 *	x	x	x	x	-
Polar A5 *	x	x	x	x	-
Polar AW200 **	-	-	-	-	-
Polar AXN300	z	x	x	-	-
Polar AXN500	z	x	x	-	-
Polar AXN700	z	x	x	-	-
Polar CS100	-	x	x	-	-
Polar CS200	-	x	x	-	-
Polar CS300	-	x	x	-	-
Polar CS400	-	x	x	-	-
Polar CS600	-	-	-	-	x
Polar CS600X	-	-	-	-	x
Polar F1/F2/F3 *	x	x	x	x	-
Polar F4 (non-coded) *	x	x	x	-	-
Polar F4	z	x	x	-	-
Polar F5 *	x	x	x	x	-
Polar F6	z	x	x	-	-
Polar F11	z	x	x	-	-
Polar F55	z	x	x	-	-
Polar FA20**	-	-	-	-	-
Polar FS1/2/3 *	x	x	x	-	-
Polar FS2c/FS3c	z	x	x	-	-
Polar FT40	-	x	x	-	-
Polar FT60	-	x	x	-	-
Polar FT80	-	x	x	-	-
Polar M21/M22/31/32	z	x	x	x	-
Polar M51/M52/61/62	z	x	x	x	-
Polar M71ti	z	x	x	x	-
Polar M91ti	z	x	x	x	-
Polar RS100	x	x	x	-	-
Polar RS200	-	x	x	-	-
Polar RS400	-	x	x	-	-
Polar RS800	-	-	-	-	x
Polar RS800CX	-	-	-	-	x
Polar S120 *	x	x	x	x	-
Polar S150 *	x	x	x	x	-
Polar S210	z	-	x	x	-
Polar S410	z	-	x	x	-
Polar S510	-	-	x	x	-
Polar S520	-	-	x	x	-
Polar S610	z	-	x	x	-
Polar S610i	z	-	x	x	-
Polar S625X	-	-	x	-	-
Polar S710	-	-	x	x	-
Polar S710i	-	-	x	x	-
Polar S720i	-	-	x	x	-
Polar S725	-	-	x	x	-
Polar S725X	-	-	x	-	-
Polar S810	z	-	x	x	-
Polar S810i	z	-	x	x	-
Polar WM21/22	x	x	x	x	-
Polar WM41/42	z	x	x	-	-

Comments:
(*)  The receiver is meant to be used with the non-coded transmitter. However, it can measure heart rate with the coded transmitter too, but it cannot use the benefit of coding.

(** FA20 and AW200 does not support heart rate monitoring functionality.

(**)  AW200 does not support heart rate monitoring functionality

(z)  The receiver is meant to be used with the coded transmitter. However, it is compatible with the non-coded transmitter, but the non-coded transmitter does not support the OwnCode feature. If the receiver does not find the code in the beginning of the measurement (usually about 30 seconds), it starts to detect (non-coded) signal from the transmitter.

This table is for the older heart rate monitors prior to 2000.

The non coded T31's transmitters are mainly used with A-series receivers and receivers that are made before year 1995. The Polar Coded Transmitters (T61, T31 coded and Polar T31 coded wearlink transmitter ) are used with M-series and S-series receivers. Please see the compatibilities in the table below.

	Polar T31	Polar T31C	Polar WearLink 31C	Polar T61	Polar WearLink W.I.N.D
Polar Accurex *	x	x	x	x	-
Polar Accurex II *	x	x	x	x	-
Polar Accurex NV *	x	x	x	x	-
Polar Accurex Plus	z	-	x	-	-
Polar Beat	z	x	x	x	-
Polar Coach	z	x	x	x	-
Polar Edge *	x	x	x	x	-
Polar Edge NV *	x	x	x	x	-
Polar Favor *	x	x	x	x	-
Polar Fitwatch *	x	x	x	x	-
Polar Heartwatch *	x	x	x	x	-
Polar Pacer *	x	x	x	x	-
Polar Pacer NV *	x	x	x	x	-
Polar Protrainer *	x	x	x	x	-
Polar Protrainer NV *	x	x	x	x	-
Polar Protrainer XT	-	x	x	x	-
Polar Smart Edge	z	x	x	x	-
Polar Sport Tester *	x	x	x	x	-
Polar Tempo *	x	x	x	x	-
Polar Vantage NV	z	x	x	x	-
Polar Vantage XL *	x	x	x	x	-
Polar Xtrainer Plus	-	-	x	x	-

Comments:
(*)  The receiver is meant to be used with the non-coded transmitter. However, it can measure heart rate with the coded transmitter too, but it cannot use the benefit of coding.

(z)  The receiver is meant to be used with the coded transmitter. However, it is compatible with the non-coded transmitter, but the non-coded transmitter does not support the OwnCode feature. If the receiver does not find the code in the beginning of the measurement (usually about 30 seconds), it starts to detect (non-coded) signal from the transmitter.