RF-I Transponder of Chronelec brand for sale on ITS Chrono
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RF-I Transponder

This product is currently not available

Evolution of the RF transponder, the RF-I transponder has an integrated antenna and no longer needs to be attached to a fork.

The 2 elastic joints allow to fix the transponder to a ankle strap or to prevent the sliding on a tube

Waterproof transponder !

Delivered without the holder ITSASRF.

block Out-of-Stock
2 years warranty
Fast delivery with Chronopost
Return within 14 days


The Protime RF-I transponder is part of the "active" transponders. The transponder is in standby and is activated by an "active" loop and uses a radio transmission. It is compatible and works with the RF decoder.

It is particularly recommended for athletics, cycling or trathlon but can be used for motocross, karting or supermoto if speeds is not high.

With its integrated antenna and small dimensions, it can be easily attached to a fork or ankle. The 2 elastic joints allow to fix the transponder to a ankle strap or to prevent the sliding on a tube.

This transponder has an integrated Lithium battery (non-replaceable).

Supply (Lithium cell battery) :

Autonomy : 3 / 4 years
Battery Type : CR 2032

Caractéristiques techniques
Max speed : 140 km/h (87 mph)
Max height of detection : 4 m (13.1 ft)
Temperature range : -20° C to +70° C (-4 to 158 °F)
Dimensions : 34 x 50 x 9 mm (1.3 x 2 x 0.35 in)
Weight : 16 g (0.56 oz)
Two frequencies : 868 MHz and 915 MHz.

Bright indications

LED blinking : 1 time during emission, 1 time every 2 min 15 s

Warranty 3 years

No warranty made in case of improper installation, maintenance or use.

Technical specifications

10 cm
10 cm
20 kg
Technical specifications
34 mm
16 g
9 mm
50 mm


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