How much does this cost to the nearest dollar?

SafetySiren Pro4 Series (4th Gen) - Leader in Home Radon Detection Since 1993. Made in The USA - USA Version pCi/L
LEADER IN HOME RADON GAS DETECTION SafetySiren Pro4 Series is our 4th Generation of electronic radon monitors. Engineered, Designed and Manufactured in the USA CONTINUOUS MONITORING both short & long term radon levels on an easy to read digital display AUDIBLE ALARM will alert you if radon levels are high. 3 Audible Alarm Modes to Choose from with a Visual Alarm for the Hearing Impaired BACK-LIGHT MODE for easy viewing of the digital display PEACE OF MIND SafetySiren Pro4 performs a fail-safe self-test once every 24 hours Brand SafetyS

Price is $177.00
Price: $176.88