Keep both hands on the wheel, both eyes on the road, and you're still in full control of emergency warning with Whelen electronic sirens. 

In Hands Free mode, a 295HF and 295HFS Series siren will be in standby mode awaiting instructions. You can turn the siren On, activate WAIL, YELP or PIERCER TONES and turn the unit Off from the horn ring. No more eyes off the road while fumbling for the siren controls with one hand!

Model 295HFS Series amplifiers are microprocessor controlled and rated for 100 or 200 watt output (with the exception of 295HF100, rated @ 100 watts).

The 295HFSA7 has eight programmable operating profiles including radio repeat and public address. The siren amplifier has a “Siren in Use” icon driver and adjustable preset repeat radio volume. The 295HFSA7 operates with either two independent siren tones to create a dual tone sound or a mono sound control. The PTT (push to talk) switch on the microphone overrides all siren functions. 

Standard features include:

• Radio Rebroadcast, Public Address, Manual, Wail, Yelp, Airhorn, and Piercer tones.
• PTT (Push To Talk) switch on unidirectional microphone over-rides all siren functions.
• All siren functions are backlit in a soft, non-glare green for ease of nighttime visibility.
• Contemporary styling complements most Whelen power controls and Traffic Advisor Control Consoles for proper aesthetic stacking.
• An adjustable bail bracket allows mounting in a variety of positions.
• Each model is mounted on a slide out chassis with an integral quick disconnect plug for ease of maintenance or replacement.
• In 295HFS Models, Si-Test® provides a significant risk management advantage.
• Two different real time diagnostic tests include: Continuous dynamic testing during normal siren operations and a unique silent test while in the Radio mode with the Manual button depressed. During either operation, one or both red LED lamps will extinguish instantly upon sensing a siren or speaker(s) malfunction.Si-Test® instantly assures you of proper warning capability and two speaker operation for high risk situations. It also eliminates the need for annoying siren blasts during vehicle inspections or shift changes. Only Whelen offers this silent testing, day or night.
• Siren 295HFS Series Features six functions, plus radio repeat and public address. Hands Free operation. Turn On/Off and access all three siren tones without removing hands from the steering wheel.
• Si-Test®silent, self-diagnostic indicator of siren or speaker failure, standard on all 295HFS models.
• Combination On/Off and horn ring transfer switch. Prewired uni-directional microphone. Adjustable microphone and radio repeat volume controls.
• Solid State over/under voltage shutdown and output short circuit protection.
• Input polarity protection
• External spade-type fuse
• Adjustable bail bracket allows mounting of unit in a variety of positions.
• Activate siren tones via Aux. Enable input (slide switch, power controls, or relay-to-ground connection).
• Locking quick disconnect plug for ease of service or replacement.
• Selectable 100 or 200 watt output, standard on HFS Series. (100 watt only on Model 295HF100.)
• Meets/exceeds Class A requirements of SAE, AMECA, KKK1822 and California Title XIII specifications

Specs:

Input Voltage	12.8VDC +/-20%
Polarity	Negative Ground
Polarity Protection	Diode/Fuse
Speaker Load	One or Two 100 Watt Speakers (One Speaker Only With 295HF100)
Output Load	One or Two 11 OHM Speakers (One 11 OHM Speaker Only With 295HF100)
Standby Current	100 MA (max, backlight off)
Operating Current	18 Amps max (295HF100 - 9 Amps max, WS2100 16 Amps max)
Backlight Current	150 MA (max)
Fuse	20 Amp Auto Fuse
Fuse Mounting	Rear Panel
Output Short Protection	Solid State/Auto Reset (295HF100 & WS2100 - Fuse)
Audio Frequency Range	300Hz - 10000Hz @ 25 watts +/- 3dB
Distortion Level	<5% @ 1KHZ @ 25 Watts
Radio Input Level	+10dB @ 25 Watts
Input Impedance	1500 Ohms
Horn/Ring Control	+12VDC or Ground
Operating Temperature	-30/+60
Operating Humidity	99° Non-condensing
Connector	12 Pin amp Mate-N Lok® 24" Pigtail