This battery-operated wireless multi-sensor is specifically designed to work with the TriggerSmart MKII Control Unit Description The new TriggerSmart Wireless Multi Sensor in conjunction with the new MKII Control Unit triggers your camera in the following modes: IR Beam Breaking (requires IR Battery powered transmitter) Sound (sudden increase) Light Intensity (sudden increase) In addition, there is an auxiliary input enabling the use of other wired sensors such as the Triggerbeam, Triggerscout and Tilt sensor WIRELESS MULTI-SENSOR SPECIFICATIONS LINKING - Via 433Mhz wireless link to the controller (max 30m distance from the controller) WIRELESS CHANNELS - 16 programmable channels ACTIVATION DELAY - < 30ms IR BEAM - Range - 20 cm to - 2m. Wavelength 850 nm FLASH SENSOR - Range 1 to 1500 lumens. Sensitivity 10 lumens SOUND RESPONSE - Microphone sensitivity - frequency response 50 to 5000 Hz at 3 Db AUXILLARY INPUT - Low to activate. POWER REQUIREMENTS - x2 CR2032 batteries POWER CONSUMPTION - About 3mA on standby SIZE - (W)7.5cm x (D)5cm x (H)2.6cm. SENSOR MOUNTING - ¼ inch UNC thread (standard tripod thread) WEIGHT - 70g WATERPROOFING - IP54 TEMPERATURE - 0 to 35oC. (operating). -10 to +50OC. (non-operating) SHOCK - 12 Newtons Specification Manufacturer SKU TSWS-2 Brand TriggerSmart Trigger Accessory Type IR Receiver