RTR503B Bluetooth 4.2 Wireless External Temperature and RH Recorder

at 25 °C and 50%RH] Measurement Resolution 0.1 °C, 1%RH Logging Capacity: 16,000 readings 8,000 data sets (One data set consists of readings for multiple channels.) Recording Intervals: Select from 15 choices: 1,2,5,10,15,20,30 sec. or 1,2,5,10,15,20,30,60 min. Recording Mode(*1): Endless (Overwrite oldest data when capacity is full) or One Time (Stop recording when capacity is full) LCD Display Items: Measurements (alternating display for multiple channel devices), Battery Life Warning, etc. Communication Interfaces: Wireless Communication (Short Range Radio Communication): FCC Part15 Section247 / IC RSS-210 (Frequency Range: 902 to 928MHz, RF Power: 7mW) ETSI EN 300 220 (Frequency Range: 869.7 to 870MHz, RF Power: 5mW) Optical Communication: Wireless Transmission Range Approx. 500 ft if direct and unobstructed Power Power Lithium Battery: LS14250(*2) x 1 L Type: Large Capacity Battery Adaptor Kit (RTR-500B1)(*3) External Power Adaptor Kit (RTR-500A1: sold separately) Battery Life (*4) About 10 months, L Type: About 4 years Weight Approx. 56g, L Type: approx. 109g (including battery / excluding sensor) Operating Environment -40 to 80 °C (-30 to 80 °C during wireless communications) Waterproof Capacity IP67: immersion proof Ext Temperature, IP64: Splash proof (rated for use in daily life) RH Probe (*5) Note: Sensor is not water resistant. Accessories Temperature Sensor (TR-5106)  Temperature/Humidity Sensor (TR-3310) Lithium Battery (LS14250)  Large Capacity Battery Adaptor Kit (RTR-500B1) Strap User's Manual (Warranty Included) Compatible Base Units RTR-500, RTR-500NW/500AW, RTR-500DC, RTR-500GSM (*1) Only "Endless" is available when using RTR-500W for Windows or RTR-500GSM for Windows. (*2) The included lithium battery (LS14250) is not sold in stores. Please purchase the optional battery set (TR-11P2) for replacement. (*3) When using RTR-500B1 it is necessary to purchase Lithium Battery (LS26500). For details, contact your local authorized distributor. (*4) Battery life varies depending upon the ambient temperature in which it is used, the recording interval, the frequency of communication, and the battery performance. All estimates are based on operations carried out with a new battery and are in no way. (*5) This is the waterproof capacity of the data logger with the sensor connected.