description klein replacement transmitter for et310 the klein tools et310trans is a replacement transmitter for the et310 circuit breaker finder. the et310 consists of two parts; a transmitter which is connected to the electrical outlet/circuit and the receiver which is used to scan the breakers in the panel. the transmitter features an integrated gfci outlet tester to check for wiring faults. for more than 160 years, klein tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. klein isn't just the name of our company, it's also our family name. and since we're an american company that's family-owned and family-run, you know you can count on us to be here tomorrow. klein tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... since 1857. california proposition 65 warning. view warning label features transmitter is a replacement part for the et310 circuit breaker finder with integrated gfci outlet tester the et310 consists of two parts: a transmitter connected to the electrical outlet or fixture, and a receiver used to scan the panel to locate the correct breaker the transmitter also checks for common wiring faults in north american grounded electrical outlets transmitter incorporates a gfci tester for tripping gfci devices the transmitter may be connected to other electrical fixtures using optional accessories which are sold separately (cat. no. 69411) transmitter is powered by the circuit when connected to the electrical outlet or fixture; no batteries needed cat ii 120v safety rating built to withstand a 6.6-foot (2 m) drop specifications acme tools brand name klein tools acme tools part number et310trans assembled weight (lbs) 0.146 battery type powered by outlet source california proposition 65 warning required yes case included no color / finish orange country of origin china depth (in) 4 digital / analog digital duty cycle capable no internal supplier part # et310trans length (in) 2 manufacturer warranty please refer to attached warranty document. material abs and electrical components operating temperature range 0 package depth 4 in package height 1.5 in package weight 1 resistance capable no temperature range 0 upc 092644693892 weight (lbs) 0.146875 weight (oz) 2.35 width (in) 1